Radial Shaft Seals Manual

Radial Shaft Seals

Rad adiial Shaf aftt Seal Technical Manual

Contents

Int Introdu roduct ction...... ion............... ................. ................. ............ ... i Seal Seal N omencla enclatture........ re ................ ................ ........ ii Seal Seal Selec Selecttion Proc Proces esss ....... .... ....... ........ ........ ...... iii Simrit Simrit Seal Seal Profile Profiless ........ .... ........ ........ ........ ....... ..... .. iv General ...................................... ...................................... 1.0

Contamination – General ......... ......... 6.0

Dynam Dynamic Sealing Sealing Behav Behavior ior.... ........ ........ ...... .. 1.1

Contam Contaminat ination ion Exclu Excluder der Des Designs igns .... ...... 6.10 6.10

System Durability-General ...... ...... 2.0

Installation – General .......... ............... ..... 7.0

Areas Areas of Influ Influen ence........ ce................ ................. ........... 2.1 Frict Friction ional al Life ................. ........ ................. ............. ..... 2.1.1 Syst System Temperat peratur ure e ...... ... ..... ..... ...... ...... ...... ..... 2.1. 2.1.2 2 Lubricat brication ion Fact Factor orss ................ ........ .............. ...... 2.1.3 Spee Speed Limit imitat ation ionss ................. ......... ............... ....... 2.1.4

Inst Installation allation Procedu Procedure ress – Standar Standard d .... .. .... 7.1 7. 1 Ins Installation allation over over Splines... Splines....... ........ ........ .... 7.1.1 7.1. 1 Ins Installation allation – Heavy Heavy Dut Duty ........ .... ....... ..... .. 7.1.2 7.1. 2 Inst Installation allation – Long Shaft Shaft ....... ... ........ ....... ... 7.1.3 7.1. 3 Leakage – General ................... ................... 8.0

Eccentricity - General ......... .............. ....... 3.0

Ecce Eccent ntricit ricity y Limit imits. s..... ....... ....... ........ ........ ....... ....... .... 3.1 Runn-ou outt and O ffset ffset.... ........ ........ ........ ........ ........ ...... 3.2 Seal Design – General ......... .............. .....4.0 4.0

Pres Presssure Se Seals ................ ........ ................ ............... ....... 4.1 Pres Presssure Limit imitss ........ .... ........ ........ ........ ........ ........ ....... ... 4.2 Pres Presssure Seal Seal Capabilities Capabilities ........ .... ........ ...... .. 4.3 O .D. Sealin Sealing g & Des Design ................ ........ .......... .. 4.4 O .D. Ty Types pes ................................... ................................... 4.5 O .D. Sealin Sealing g ................................ ................................ 4.6 O .D. Sealin Sealing g Sum Summary ................. ........ ........... 4.6.1 Surface Finish – General .......... ..........5.0 5.0

Stru Struct ctu ure of the the Shaf Shaft. t..... ........ ........ ........ ........ ...... 5.1 Condit Condition ionss .................................... .................................... 5.2 Plu Plunge Grinding Grinding ................ ........ ................ ............ .... 5.3 Hous Housings ings ...................................... ...................................... 5.4 Bore ore Mate Material & Finis Finish h ................. ......... .......... .. 5.5 Housing Housing Reco Recom mmendat endations ions.. ..... ..... ..... ...... ... 5.6

Causes Causes of Failu Failure........ re................ ................. ........... .. 8.1 Warrant Warranty Avoidance Avoidance Checkl Checklist. ist..... ....... ... 8.2 Defect Sources & Remedial Measures ................................ ................................ 9.0 Material – General ................... 10.0

Media to to be be Seale Sealed d ................ ........ ............... ....... 10.1 Mater Material ial Sele Select ction ion ............... ....... ................. ........... 10.2 Temperat peratu ure Ranges..... anges......... ........ ........ ........ .... 10.2.1 10.2 .1 Hardn Hardnes esss Change Changess ............... ....... ............... ....... 10.2.2 Volum olume Change....... Change............... ................ ............ .... 10.2.3 Dura Durabil bilit ity y ................................... ................................... 10.2.4 Retrac etracttion Resu esults lts ....... ... ........ ........ ........ ........ ...... .. 10.2.5 10.2 .5 Mater Material ial Prope Propert rtie iess ............... ....... ................ .......... 10.3 Simrit Lip Style Designations ... 11.0 11.0 Glossary of Terms .................... 12.0 Conversion Charts .................... 13.0

Introduction:

Th The dat data in in this technical ical catal atalog og is bas based on exper perien ience gain gaine ed by Simrit through through the Freuden Freudenberg berg & N O K Group G roup Com Companies. panies. Decades of research have been conducted into both the development and manufacture of our Sim Simrit rit Radial Radial Shaft Seals. Seals. N evertheevertheless, the information in this catalog may be significantly modified as a result of factors occurring during practical use of our product, which which may be unknown to to the company. company. Therefor Therefore, e,th the e data contained herein, can only be considered general, non-binding, appro approxi xim mate val values ues.. For this this reason we strongl strongly y encoura encourage ge you to contact your Simrit representative to discuss specific applications. Th The dat data in in this cat catalog alog may be alt altered wit without out prior prior notic otice e. Th This publ public icat ation ion may only only be reprod produ uced wit with the expre press cons onsent of Simrit: Simrit 47690 East Anchor Court Plymouth, outh, M I 4817 48170-2455 0-2455 Phone: 734-451-0020 Attent ttentiion: Sim Simrit rit Market arketing ing Department Department

Th This publ public icat ation ion super percede cedess and and re renders ders all pre previous ious Radial adial Shaf Shaftt Seal Seal Techn chnical ical Data ata inv invalid. alid.

i

Seal Nomenclature

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.

ii

Seal Width Metal Case (Outer) Housing Inner Case Outside Face Inside Face Radial Wall Seal Outer Diameter Housing Bore Diameter Spring Position (R-Value) Spring Groove Garter Spring Heel Section

14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25.

Flex Section Spring Retainer Lip Inside Lip Angle Toe Face Auxiliary (Dust) Lip Rib (Helix) Contact Point Inside Lip Surface Spring Set Lip Diameter Free Lip (Unsprung) Diameter Contact Line Height Lip Height

Seal Selection Process

START

Special Reciprocating Design or Hydraulic Seal

Reciprocation

Motion

Rotation

Bore

Movement ?

Non-Standard Designs

Shaft

BA/ BASL TC1 or TCSC With Special NBR

Grease

Choose: KB, KC, VB, VC

Another Fluid

Two Seals Or DB/ DC

Fluid ?

Water

Oil


Over 5 psi

Pressure ?

Under 5 p si


Heavy Contaminants

Outside ?

Light Dust

Air

BABSL, TB, TBR, TC

BA, SB, SBR, SC

iii

Simrit Seal Profiles

BODY SYMBOLS LIP SYMBOLS

Metal O.D. design with an inner case for greater structural rigidity

Most standard and economic design

Metal O .D. design with rubber covering on fluid side

Old Design O.D. part metal/ part rubber

Rubber O.D. design for excellent sealability

SA2

SB2

SB

SBR

SC

General non-pressure sealing applications and severe grease sealing conditions

S

*B2

*B1

*B1

*BA

General non-pressure sealing applications and severe grease sealing conditions with light duty exclusion of contaminants

T

TA2

*B2 SL

TB

TB2

TBR

TB

*B1 SL

*B1 SL

*BA SL

Seal designed for grease retention or sealing viscous fluid

V

VA2

VB2

VB

VBR

VC

KB

KBR

KC

Seal designed for grease retention or sealing viscous fluid with light duty exclusion of contaminants

K

KA2

WP

KB2

Wiper or scraper type sealing applications

WPB Note: Metal O .D. seals are most suitable for steel or cast iron housings.

Rubber O.D. seals are preferred for soft alloy or plastic housing materials and are also suitable for steel or cast iron housings. In addition, this design category is best for rough bore finishes or for materials with a high coefficient of thermal expansion. *Simrit Europe design equivalent

iv

WPC

General

M echanics of a Radial Shaft Seal - G eneral

A Simrit Radial Shaft Seal is used to seal a rotating shaft against the predominantly stationary housing of the unit. The most important functioning area of the radial shaft seal is the sealing edge which comes in contact with the surface area of a rotating shaft. (See figure 1, pg 1.1) The sealing mechanism in the sealing lip is critically important when it comes to the sealing function. It is dependent on: - The layout of the sealing lip - The properties of the elastomeric material - The finish of the shaft surface Characteristic dimensions of sealing lip profile

A good knowledge base in seal design and function is required prior to establishing and interpreting characteristic dimensions. Dimensions are set by each manufacturer depending on the material properties, size and lip geometry. hD and Sm are set depending on the shaft diameter and the operating conditions. The coordination of both of these dimensions affects the flexibility of the lip: - Long and flexible sealing lips for high tolerances of offset (static eccentricity) and concentricity

- For pressurized applications, a short profile and a stable profile for the shaft The characteristic dimension for the distance from the center of the spring to the sealing edge is the spring plane (R-Value):

- An R-Value dimension that is too small can result in the toppling over of the seal, especially with any radial shaft deflection. - Too large an hf dimension can cause the profile to tilt. This will cause a wide contact area on the shaft and result in a wide wear track. Sealing lip geometry

The angle of the sealing lip influences the sealing mechanism by affecting conditions for contact pressure: - Oiled side: steep angle 35 – 60 degrees - Air side: shallow angle 12 – 30 degrees The sealing lip inner diameter in a free state, is always smaller than the shaft diameter. The covering (also pre-tension) is the difference between these two measurements. The dimension for the length of the lip is the measurement hD. Dimension for the cross-section of the lip is Sm. The characteristic dimension for the distance from the center of the spring to the sealing edge is the spring plane, hF.

Sm

35-60 Degrees 12-30 Degrees hF hD

1.0

Dynamic Sealing Behavior

Dynamic sealing behavior

The most important functional area of the Simrit Radial Shaft seal is the sealing edge which is in contact with the surface area of a rotating shaft. The sealing mechanism in the sealing lip contact area has the greatest impact on the performance of the seal and its function. This is dependent on the layout of the sealing lip, the properties of the elastomeric material and the shaft surface finish.

structure of the sealing lips distortion features. (Figure 3) This “distortion”occurs during the running-in phase of the seal. Therefore this run-in phase is critical to the seals performance. It creates a helix-effect and in combination with the shafts rotation, a pumping action directed at the oil side of the unit due to the predictable lip deformation. Figure 3

Figure 1

The radial force of the sealing lip, in combination with the geometry of the sealing lip angle and spring plane distance produces an asymmetric footprint representing the pressure contact points.(Figure 2) - maximum pressure and steep increase on the oil side - shallow decline on the air side This is of significant importance as it relates to sealing function. Figure 2

Radial Force FR

Even when stationary, the medium and lubrication used in sealing, penetrates the lip by capillary action on the uneven areas of the shaft. However, there is still direct contact of sealing lip with the shaft. Should the complex relationships between the sealing lip and contact area be disrupted by: (Figure 4) - improper shaft surface finish - scratches, pores and other imperfections on the shaft and seal, - contamination or corrosive products in the medium, - hardening and cracks on the sealing edge, the seal will not perform properly and will be prone to leak. Figure 4

Oil Side Air Side Shaft

The contact pressure distribution by the aysymmetric footprint and the power generated by the rotating shaft lead to a predictable characteristic deformation of the sealing lip. This predictable performance requires a good elastomeric material which provides a clear 1.1

Operating Variables

Radial Shaft Seals STRIKING A DELICATE BALANCE

Pressure Lubricant Temperature

Surface Condition, Finish and Installation Procedures

Eccentricity Surface Speed Contamination

SYSTEM DURABILITY

Quality, Tolerances and Fit

Seal Design & Material

In order to reliably seal a rotating shaft, seal design must be carefully balanced with the operating conditions to maximize durability.

2.0

Areas of Influence

Speed

Pressure

Shaft diameter D x Revolutions per min x pi V(m/ s) = 60

Simrit Radial Shaft Seals can be designed to handle pressures up to 150 psi. Most common seals, such as those shown on page iv, are designed for little or no internal fluid pressure.

Temperature

Sealing against contaminants

To determine the shaft’s surface speed “V” the following formula applies:

The temperature on the sealing edge is higher than in the oil bath due to the rotation of the shaft and the corresponding friction produced. Lubrication

An increase in the revolutions per minute, and consequently surface speed, equates to higher heat. Good lubrication and diffusion of the heat are important factors to ensuring the sealing edge falls within a permissible temperature range. Neglect in these areas leads to: -High wear -Premature hardening of the sealing lip -Shortened seal life

2.1

The use of a Simrit Radial Shaft seal with a dust lip is recommended for sealing against the dirt, dust and moisture on the air side. NOTE: Before installation, fill the space between sealing lip and dust lip with grease to +/ - 40% of available space to ensure lubrication of the dust lip and to avoid any corrosion on the shaft. We would like to recommend grease from Kluber Lubrication.

In order to combat an aggressive attack from contaminants, it is possible to use two seals in tandem. For extreme conditions, standard combinations, labrynth seals and modular sealing systems can be used. Please contact your Simrit representative for assistance.

Frictional Life

Influence of Speed, Temperature & Lubricant

Radial Shaft Seals STRIKING A DELICATE BALANCE

Pressure Lubricant Temperature Surface Condition, Finish and Installation Procedures Surface Condition, Finish and Installation Procedures

Eccentricity Contamination SURFACE SPEED

SEAL DESIGN

Quality , Tolerances and Fit

Frictional Life

As shown above, the choice of lubricants, the environmental temperature, and the application speed are intimately related to the seal’s frictional life. Careful analysis of these variables and their relationship to the choice in seal design and materials allows the user to achieve desired durability goals with the most cost effective solution.

2.1.1

System Temperature

A seal will generate heat in excess of the oil sump temperature. The graph below shows the approximate amount of heat generated. GENERAL SEAL LIP TEMPERATURE RISE ABOVE THE OIL SUMP TEMPERATURE Seal Type: Lubricant: Lube Level:

S TYPE SAE 30wt Engine Oil Shaft Center

40 72 F

C ˚ 30 e r u t a r e p m 20 e T p i L s s e c x E 10

0

54 F

6000 RPM 3000 RPM

36 F

1500 RPM 500 RPM

0

100

200

18 F

0F 300

Shaft Diameter, mm

In order to determine the maximum temperature limitations of any particular material, you must look carefully at the operating conditions. First, determine the excess lip temperature generated in the application. Then, add to that the oil sump temperature. This is the upper temperature limit requirement to consider when choosing the seal material (see material section).

2.1.2

Lubrication Factors

The primary factors influencing the durability of a seal are the temperature, fluid, and the seal material.

FKM Matl. 100W-30 Eng. Oil

10,000 s r H , y t i l i b a r u D l a1,000 e S d e t c e p x E

VMQ Matl. 30 WT Eng. Oil

NBR Matl. 90 WT Gear Oil

VMQ Matl. 10W-30 Eng. Oil

NBR Matl. -30 Eng. Oil

ACM Matl. 90 WT Gear Oil

ACM Matl. 10W-30 Eng. Oil

100 6 0

9 0

1 2 0

1 1 2 2 4 8 1 4 0 0 0 0

Seal Lip Temperature, ˚C

ACM = Polyacrylate VMQ = Silicone FKM = Fluoroelastomer

Using a lubricant that promotes seal durability can significantly increase seal life. In general, using a fluid that has good lubricity is desired. Additive packages that prevent oil breakdown at higher temperatures can attack a seal material, and should be reviewed with the Simrit representative. With the proper choice of fluid, seal design, and materials, seals can often last over 10,000 hours in clean environments.

2.1.3

Speed Limitations

Surface Speed

m/ s36

M P R 0 0 , 0 5 1

32 28

ft/ s

M M M M P M M P P P P R R P R R R R P M 0 0 0 0 0 0 0 R 0 0 0 0 0 0 0 0 , , 0 ,0 0 0 0 , , 5 , 5 4 3 6 0 2 , 1 8 FKM Below This Line M

100

P R 0 0 0 2 ,

24

80

ACM Below This Line

M R P 0 0 1 , 5

20 16

60

12

40

8 20 4 0 0

50

1

2

100

3

4

150

5

6

200

7

8

0 300mm

250

9

10

11 inch

Shaft Size

In general, the system temperature increases as the shaft speed increases. The above chart provides general recommended maximum shaft speeds for each of the common lip seal materials.

2.1.4

Eccentricity General

Offset (Static eccentricity)

Deviation of the offset, or deviation of concentricity between the shaft and the receiving bore, leads to irregular distribution of contact pressure and to a skewed positioning of the shaft within the shaft circumference. This migration to one side of the sealing lip leads to a greater width contact track and the loss of contact pressure on the opposite side. This impairs the sealing function. (See Total Eccentricity Limits)

Run-out deviation

Run-out deviation, or dynamic eccentricity of the shaft (shaft whip) is to be avoided as much as possible. At high revolutions the possibility exists, because of its inertia, that the sealing lip will no longer follow the shaft. The enlarged sealing gap between the sealing edge and the shaft will lead to a certain level of leakage. NOTE: Bearing play is to be reduced as much as possible due to the fact that the seal is typically located in direct proximity to the bearing.

3.0

Eccentricity Limits

Total Eccentricity Limits

Total eccentricity consists of two components: shaft run-out and shaft-to-bore misalignment (offset). Combine these two figures to obtain the maximum eccentricity that the seal must follow as the shaft rotates. As eccentricity increases or shaft speed increases, it becomes more difficult for the seal lip to maintain contact with the shaft. The total recommended eccentricity (static offset plus dynamic run-out) limits for most oil seals is shown below for different size shafts and speeds. Note that more extreme eccentricity levels can be met with special designs.

Total Eccentricity

0.7 mm

0.028 in.

0.6 mm

0.024 in.

2000 rpm

0.5 mm

0.020 in.

3000 rpm

0.4 mm 0.3 mm

0.016 in. 0.012 in.

5000 rpm

0.2 mm

0.008 in.

7000 rpm

0.1 mm

0.004 in.

0 mm 0 mm

50 mm

1

2

100 mm

150 mm

200 mm

3

5

7

4

6

8

250 mm

9

10

0.000 in. 300 mm

11 inch

Shaft Size

3.1

Run-out and Offset

Eccentricity

Total eccentricity is the combined total of Run-out and Offset as depicted in the following graphs:

Shaft Centerline Rotation Path

Center of Rotation

Dynamic Component

Run-out (T.I.R.)

Housing Shaft Housing Centerline Static Component

SHAFT TO BORE MISALIGNMENT (OFFSET) Center of Rotation

3.2

Radial Shaft Seals STRIKING A DELICATE BALANCE Pressure Lubricant Temperature



SEAL DESIGN


Pressure Seals -Seal must resist lip deformation to minimize friction, w ear and heat. -Seal material should have high mechanical strength -Special retention and support mechanisms may be required to prevent seal extrusion.

Pressure deformation causes increased seal contact with the shaft, thus increasing friction, heat generation, and wear.

There are special issues that must be addressed when dealing with pressure seal applications. • The seal must resist lip deformation from internal fluid pressure to minimize friction, wear, and heat. • Seal material should have high mechanical strength. • Special retention and support mechanisms are usually required to resist seal back-out and extrusion. • Systemeccentricities need to be more carefully considered than with non-pressure seals.

4.0

Pressure Seals

Standard pressure seals

Our Simrit Radial Shaft Seals are primarily designed for applications that do not involve pressure or for an application with very low pressure (below 5 psi).

However, unique to our industry, Simrit does have a standard line of seals that will handle pressures below 150 psi. (TCV and BABSL up to 50 psi; TCN up to 150 psi, dependent on shaft speed.)

A feature of this seal is it’s short, but nevertheless, flexible lip. This special design prevents the increase of the sealing lip contact pressure and consequently the frictional behavior.

With intermittent pressure it is possible to use pressure seal designs as the dust lip prevents suction from the air side. However, when low atmospheric pressure is part of the application equation, the use of a second seal with the sealing lip directed to the air side may be required.

The lubrication of the sealing lip by a barrier liquid ensures the sealing of a vacuum. This lubrication works against the vacuum and adds resistance to the seal through pressure; the use of a TCV or BABSL style seal is recommended in this instance.

Note: All pressure-resistant Simrit radial shaft seals must be sufficiently secure on the non pressurized side to guard against squeeze-out from the bore.

4.1

Pressure Limits

Pressure Seal Designs

Simrit has standardized designs for low to medium pressure applications (under 150 psi). This is unique in the industry!

Pressure Limit Recommendations for Simrit Standard Seal Types 150

Pressure (psi)

125 100

TCN

75

TCV

50 25

TC

0 0

5

10

15

20

25

30

35

Shaft Speed (ft/ sec)

Estimate of Seal Life for a TCV Type Seal in FKM & NBR Materials y 1000

t i c o l e V g n i d i S X e r u s s e r P

(psi X ft/ sec)

800 600

FKM 400 200 0 10

100

Durability (hrs)

4.2

1000

Pressure Seals Capabilities

High Pressure Designs

Pressure As pressure and shaft speed increase, seal life decreases

Speed

Seal Life

Freudenberg-NOK Pressure Seal Capability 1600

Low Speed Designs

1400 ) I S P ( e r u s s e r P

1200 1000 800 600

High Speed Designs

400

Standard Oil Seal

200 0

0

1

2

3

4

5

6

Speed (RPM X 1000)

With the addition of increasing internal pressure to the seal operating conditions, seal life becomes dramatically reduced due to the added friction and heat unless the seal is designed to accommodate the pressure. Simrit has several different seal designs that have a proven track record in a variety of pressure and speed applications where standard designs will not work. Please contact your Simrit representative for assistance.

4.3

Radial Shaft Seals

STRIKING A DELICATE BALANCE




SEAL DESIGN

- O.D. Sealing - Design Goals

4.4


O. D. Sealing

O. D. Cross-Section

Type

Rubber

Standard

Ribbed

Rubber & Metal Combined

Lead-in Gasket

Outside Edge Gasket

With Flange

Metal

Standard With & Without Latex Coating

With Flange and Sealant Bead

NOTE: Many custom shapes and configurations are available.

4.5

O. D. Sealing

Bore Potential Leak Path

Oil

Shaft

Design Goals - SEAL MUST:

• • • • • •

4.6

Prevent leakage at outer diameter. Not rotate or come out of the bore. Be compatible with the bore material. Be easy to install. Compensate for bore imperfections. Be suited for automated installation.

O. D. Sealing Summary

Seal Design Rubber O.D.

Condition

Rubber & Metal Combination

Metal O.D.

Non-Ferrous Housing Rough surface, Scratches or Nicks in the Housing Field Replacement

Pressure Applications

Corrosion Resistance

KEY

Excellent

Back-up support required for retention

Good

Latex coating lacks elasticity and provides little additional benefit

Fair/ Poor

4.6.1

Radial Shaft Seals STRIKING A DELICATE BALANCE Pressure Lubricant Temperature



SURFACE FINISH


The condition of the shaft is as important as the condition of the seal if proper sealing and long life are to be achieved. Care must be taken to specify the proper design and process parameters for production of the shaft. Also, adequate care in handling and protection of the sealing surface must be followed, as handling damage to the running surface is one of the most frequent causes of seal leakage.

5.0

Structure of the Shaft

Structure of the Shaft

The structure of the shaft as it relates to the surface area at point of contact with the sealing lip, directly impacts the function of the seal and the durability of the sealing system.

-The steel usually found in mechanical engineering, e.g. C35 and C45 -Casting materials such as ball graphite and malleable iron.

Surface roughness

-Sprayed on metal coatings

When the depth of roughness is too low (especially with higher surface speed), the potential for problems exist due to the inability of the lubricant to effectively reach the sealing edge. This can result in premature hardening and the formation of cracks and possibly signs of combustion on the sealing edge.

-Coatings applied through CVD and PVD processes, as well as, anodized coatings positively assessed

When the depth of roughness is too high the potential for problems exists with excessive premature wear and possible leakage within the sealing system. ( See Recommended Shaft Conditions) Plunge Grinding

The recommended procedure in shaft preparation is plunge grinding. This is to ensure the desired non-oriented state of the shaft. ( Plunge Grind Process) Shaft Materials

The adherence to values for roughness and a good adhesion to the base material are prerequisites. Note generally suitable are: -Hard chrome coatings -Plastic materials Shaft impairment

Scratches, pressure sites, rust and other damage on the seal’s running surface ultimately leads to leakage problems. Note: Great care in protecting the shaft during

production and through to final assembly is recommended. This can be accomplished by using protective sleeves and special transporting devices.

Suitable materials to ensure the proper function of our Simrit Radial Shaft seals are:

5.1

Conditions

Recommended Shaft Condition

Surface roughness 10- 20 micro inch Ra , Rmax < 126 micro inch. Shaft hardness minimum 45 Rockwell C No machine lead permitted (plunge grinding recommended) Seal contact area to have no scratches, nicks, or defects and be free of contamination When installing seal over a spline, a protective cover should be used Seal diameter < Bearing diameter Seal diameter > Spline diameter

These Corners must be Burr Free and Blended with no Sharp Edges

15 to 30 Deg.

Chamfer Dia. Shaft Dia.

5.2

SHAFT DIA. (SD)

CHAMFER DIA.

SHAFT DIA. (SD)

CHAMFER DIA.

(Inches)

(Inches)

(mm)

(mm)

0.000 to 1.000 1.001 to 2.000

SD - 0.094 SD - 0.140

0.00 to 25.00 25.01 to 50.00

SD - 2.4 SD - 3.6

2.001 to 3.000 3.001 to 4.000

SD - 0.166 SD - 0.196

50.01 to 75.00 75.01 to 100.00

SD - 4.2 SD - 5.0

4.001 to 5.000

SD - 0.220

100.01 to 125.00

SD - 5.6

5.001 to 6.000 6.001 to 10.000

SD - 0.260 SD - 0.276

125.01 to 150.00 150.01 to 250.00

SD - 6.6 SD - 7.0

Plunge Grinding

Plunge Grind Process

-

No Traverse Approx. 80 grit grinding wheel will produce a 10 to 20 micro inch finish Uneven ratio of grinding wheel speed to work piece speed required Must remove entire base finish

Advantages

-

Short to medium grind marks - good for lip lubrication Lay is perpendicular to the shaft axis - no lead angle

4-Axes Machining

Plunge Turning Turning

Plunge Grinding

Bead Blasting

Finishing Processes Honing / Superfinishing

Quick Point Grinding Roller Burnishing

Paper Polishing Deep Drawn Metal Sheet

Polishing

5.3

Housings

Housings

Steel and cast iron provide good surfaces for both rubber covered and metal O .D. seals. For soft alloy (aluminum) bores, rubber covered O.D. seals provide better sealing capability. In aluminum or other soft alloy bores, metal O .D. seals occasionally back out of the bore due to thermal expansion of the soft alloy. Rubber, having a higher coefficient of thermal expansion than carbon steel, will tighten in the bores as temperature rises. Metal O .D. seals are not recommended for use in plastic or nylon housings. These materials typically expand at a high rate causing leakage around the seal O .D. Rubber covered O.D. seals should be used in these situations.

Bore Chamfer

A bore chamfer is necessary to assist in installation of the seal. Proper chamfer angle and depth minimizes cocking or lack of squareness of the seal to the shaft, distortion of the seal cases, and reduces assembly force.

5.4

Bore Material & Finish

Influence of the Bore Material and Surface Finish

In non-ferrous or plastic housings metal O.D. seals lose pressfit at elevated temperatures due to differences in thermal expansion.

Material

Coefficient of Thermal Expansion o C

Carbon Steel

12 x 10 -6

Aluminum & Magnesium

24 x 10 -6

Plastic (Nylon)

30 ~ 300 x 10 -6

Rubber

100 ~ 200 x 10 -6

Rubber O.D. seals can tolerate higher levels of initial bore finish than metal O .D. types.

Metal O .D. Design

Rubber O.D. Design

100 micro inch Ra

150 micro inch Ra

(2.5 micro meter Ra)

(3.75 micro meter Ra)

5.5

Housing Recommendations

15 ~30 ˚

0.060 to 0.090 inch (1.5 to 2.2 mm)

Corner to be free of burrs and sharp edges

Max Bore Surface Roughness METAL O.D.

100 micro inch Ra (2.5 micro meter Ra )

RUBBER O.D.

150 micro inch Ra (3.75 micro meter Ra)

492 micro inch Rmax (12.5 micro meter Rmax)

NOTE: With aluminum and magnesium bores, a minimum roughness of 60 micro inch Ra (1.5 micor

millimeter Ra) is recommended for improved retention of rubber O.D. seals.

5.6

Radial Shaft Seals Contamination Exclusion Features STRIKING A DELICATE BALANCE Pressure Lubricant Temperature




CONTAMINATION

EXCLUSION FEATURES Seal must be capable of stopping any outside contamination from: • damaging/ grooving the seal’s main lip • ingesting into the oil Added exclusion features should not generate excessive heat in high speed applications

Bore Dust / Dirt / Mud / Water

Oil

Shaft

6.0

Contamination Excluder Designs

Single Dirt Lip

Non Contacting “Slinger”

Microcellular Polyurethane Excluder

Double Dirt Lip

Excessive End Play

Contacting “Slinger”

Solid Polyurethane Excluders

Cassette/ Unitized Seals for Heavy Contamination in Slow Speed Applications

Many special designs can be provided to fit your application. If the sealing environment is harsh, we recommend you contact a Simrit representative to review the need for added exclusion features

6.1

Radial Shaft Seals

STRIKING A DELICATE BALANCE




INSTALLATION


CRITICAL ISSUES Installation problems frequently are diagnosed as the cause of leakage. In order to ensure optimum seal function the seal must be properly installed. Care must be taken to: 1. Design the O.D. of the seal appropriately for the application 2. Design the housing to accommodate the seal 3. Follow recommended handling and installation procedures

7.0

Installation Procedures Proper Installation Procedures Minimum Diameter .20 to .40 Larger Than Seal O.D.

Minimum Diameter .20 to .40 Less Than Bore Dia.

Installa tion Tool

Installation Tool

Housing

Housing E

Width “E” = To Chamfer Width Plus .020 Tool Stops Against Housing Face

Tool Stops Against Support Surface

Minimum Diameter .20 to .40 Larger Than Seal O.D.

Strike Plate

Installation Tool

Surface Stops Tool

Housing Housing

Improper Installation Small Diameter Installation Tool Installation Tool Housing Housing

Seal May Deform

7.1

Deformed Seal

Installation Procedures

Installation Over Splines

Heavy Duty Housing Locating Pin Bad

Good

7.1.1

Installation Procedures

Long Shaft A) Bad

B) Good

7.1.2

Guide Plate

Leakage - General

Leakage

There are different and varying terms to define what is classified as “leakage”. Watertight: No moisture on seal

Moist: bead of moisture in sealing edge area limiting the function, but not going beyond back surface area Wet: bead of moisture going beyond back surface area with the formation of droplets, but not dripping Measurable Leakage: small beads of moisture on outside of housing coming from the back of the seal Passing Leakage: short-term problem within the sealing system, e.g. caused by small dirt particles under the sealing edge which will wash away with further use. Apparent Leakage: passing leakage which leads back to the grease filling between the sealing lip and dust lip. The overflowing grease appears as apparent leakage on the outside.

Causes for measurable leakage can be:

-Varied expansion of seal and housing on the static side by non-adherence to tolerances. -Cracks in the material, above all in the sealing edge due to exceeding seal operating limitations. -Increasing hardness of rubber caused by exceeding seal working parameters and incompatibility with the media being sealed. -Corrosion from the shaft up to the sealing edge. -Failure of lubrication thereby seal runs dry; result is excessive wear on the sealing lip. -Formation of “oil carbons” in the sealing edge area. -Vibration of the unit and shaft to such an extent that the sealing lip can no longer follow. -Permanent ingress of dirt on the sealing lip from either inside the chamber or out. -Damage due to handling or installation.

8.0

Leakage - General

Probable Causes of Seal Failure

The user has primary control over the variables influencing short termor warranty failure. The condition of the shaft and housing, operating parameters and installation play large roles in determining the short term warranty factors. Simrit and the seal user share responsibility for the sealing system’s long term durability. While the shaft and housing preparation and installation of a seal are primary factors involving the user, Simrit works with the customer in designing a seal that meets the operating conditions outlined by that user. These combined factors will determine the long term durability of the sealing product.

8.1

Leakage - General

Warranty Avoidance Checklist

1. 2. 3. 4. 5. 6.

Prepare proper housing bore diameter and chamfer. Prepare proper shaft diameter and chamfer. Ensure appropriate prelubrication (usually the lubricant being sealed). Use a hydraulic press or other suitable method to ensure proper force and speed are applied. Use proper tools. Install the seal contaminant and damage free: a. Open only 1 package of seals at a time; b. Installation area must be kept clean; c. Tools, protective sleeves, and bullets must be kept clean and periodically inspected for damage.

What Should I Look For?

Handling Transport Storage Mounting

Unit Seal Bore Medium Running Surface

Manufacture

Mechanical Damage Housing SealingLip RunningSurface

Dirt From Outside OperatingConditions Dirt Sealing Elastomer Abrasion SoiledGrease Corrosion

CastingSand Metal Abrasion DisintegrationProducts FromTheMedium SoiledMedium Corrosion

Dirt From Inside

Chemical Damage

Radial Shaft Seal Wear

UV Running Surface Ozone Overpressure Medium Manufacture Temperature SealingMedium Elastomer Material Design Material AbrasiveParticles LubricatingConditions

Medium Temperature Elastomer Material

Thermal Damage

Shaft Material Elastomer Material AnticorrosionProduct LubricatingMedium AbrasiveParticles

Wear and Tear of Running Surface

8.2

Defect Sources

Defect source and recommended remedial measures

Incoming Goods:

Defect Source:

Damage to packaging

Possible Defect:

Contamination of Shaft Seals

Consequence:

Shortened service life or immediate leakage

Weak spot:

Packaging not satisfactory

Remedial Action

Set procedures for inspection of parts for contamination, visual and dimensional changes, handling; optimize packaging.

Storage

9.0

Defect Source:

Damage to packaging Non-adherence to storage guidelines

Possible Defect:

Fitting and employment of contaminated shaft seals

Consequence:

No effect up to immediate leakage and possible shortened working life.

Weak spot:

Non-adherence to storage conditions

Remedial Action

Definite adherence to storage conditions

Defect Sources


Storage Cont’d.

Defect Source:

Contamination of Shaft Seals

Possible Defect:

Fitting and employment of contaminated seals

Consequence:


Weak spot:

Dust and dirt

Remedial Action

Cleaning with suitable cleaning agent before installation, original packaging to be opened only at installation site.

Storage Cont’d.

Defect Source:

Damaged shaft seal

Possible Defect:

Installation of impaired shaft seals

Consequence:

Immediate leakage or shortened working life

Weak spot:

Premature aging through improper storage

Remedial Action

Original packaging to be opened only at installation site

9.0.1

Defect Sources


Storage Cont’d.

Defect Source:

Open storing of pre-greased shaft seals

Possible Defect:

Contamination of grease

Consequence:


Weak spot:

Dust and dirt from surroundings

Remedial Action

Always cover packaging unit, protect from dust and dirt, only draw the needed quantity for use

Storage Cont’d.

9.0.2

Defect Source:

Unsuitable stock container

Possible Defect:

Contamination, impairment of shaft seals, springs coming loose

Consequence:


Weak spot:

Collection of dirt and moisture in the stocking container, sharp edges

Remedial Action

Use containers that are open and lightly cleaned. No sharp edges

Defect Sources


Preparing for Installation:

Defect Source:

Improper opening or withdrawing from package

Possible Defect:

Cuts or similar damage on O.D. Loss of spring

Consequence:


Weak spot:

Unsuitable tools or methods for opening

Remedial Action

Suitable tooling for opening packages, special and careful handling by installer


Defect Source:

Using contaminated grease when pre-greasing shaft seal

Possible Defect:

Contamination, impairment of shaft seals

Consequence:


Weak spot:

Dirt and dust

Remedial Action

Grease container to be protected from dust and dirt and sealed off when not in use

9.0.3

Defect Sources



Defect Source:

Unsuitable oil for moistening of shaft prior to shaft seal press fit

Possible Defect:

Chemical influence on seal material, stick-slip

Consequence:

Shortened service life due to accelerated wear

Weak spot:

Unfavorable lubrication, no oil in contact with Simrit shaft seal material

Remedial Action

Consult Simrit Representative about oil grade. DO NOT USE GRAPHITE GREASE


9.0.4

Defect Source:

Too much grease between sealing edge and dust lip

Possible Defect:

Appearance of grease when installing or during operation

Consequence:

“Apparent leakage”

Weak spot:

Incorrect amount of grease

Remedial Action

Maximum grease amount: +/ - 40% of greasing space

Radial Shaft Seals

STRIKING A DELICATE BALANCE Pressure Lubricant Temperature



MATERIAL SELECTION


MATERIAL SELECTION IS BASED ON THE FOLLOWING: 1. Application Temperature 2. Compatibility w ith the Lubricant 3. Seal Durability Requirements 4. Microasperities

Simrit elastomers can be customized to meet specific customer requirements. We currently compound hundreds of different recipes to fit many unique applications.

10.0

Media to be Sealed

Medium and selection of material

The medium to be sealed determines the selection of Simrit material and also the selection of the seal to be used. Sealing is possible against liquid, vapor and in exceptional cases, even low viscosity and gaseous media.

Reactions between media and Simrit materials

Chemical influences of the media on Simrit materials are crucial. Chemical reactions are accelerated by increased temperatures. Materials of any sort can harden or soften due to the media exposure. -Hardening by ageing process caused

Simrit materials can seal against various lubricating substances, e.g .: -Mineral oils -Synthetic oils -Greases based on mineral oils -Synthetic greases -Hydraulic oils -Highly inflammable pressurized liquids -Silicone oils with low lubricating properties Under special circumstances, Simrit materials can seal against low lubricating, aggressive media, e.g.: -Acids -Alkalis -Organic solvents

10.1

by media -Softening through swelling caused by the media. Upper limit conditions

The limits imposed on applications for the Simrit radial shaft seal are reached and exceeded when several conditions meet the upper operating limits; such as: -The maximum permitted surface speed -The maximum permitted temperature -Pressure resistance -Sparce lubrication or reduced heat dissipation.

Material Selection

VMQ N BR ACM FKM FVMQ AEM PTFE

Silicone N itrile Polyacrylate Fluoroelastomer Fluorosilicone Ethylene Acrylic Polytetrafluoroethylene

EPDM

Ethylene Propylene

ECO

Epichlorohydrine Ethylene Oxide

SBR

Styrene-Butadiene Rubber

HSN

Hydrogeneated Nitrile

IIR

Butyl Rubber

NR

Natural Rubber

At Simrit, we work with virtually every base polymer that is commercially available. This allows us to use the optimum material for each customer’s application. All of our materials are compounded in-house, giving us much better control over the material properties and allowing us to custom tailor our compound for a given application.

NBR

ACM

VMQ

FKM

HNBR

PTFE

moderate

very good

moderate

good

very good

very good

good

good

very good

max. 2000C

max. 1500C

wear resistance

very good

moderate

hightemperature

moderate

good

oil resistance

max. 1000C

very good

max. 1500C max. 1800C

max. 800C inheavy duty oils lowtemperature-

max. 2000C max. 2000C

(max. 1500C (max. 1400C operating operting temperature) temperture)

downto -400C

downto -300C

downto -500C

downto -250C

downto -400C

good

good

moderate

very good

good

1

2.5

3

10

8 - 10

FPM*

(max. 1400 operating temperature) downto -800C

downto -100C

resistance oil resistance pricelevel

extremely goodextremely good 2

10 - 20

10.2

Material Temperature Ranges

TEMPERATURE (OC) 200

200

200 ––– 150 150 –––

150

100 –––

50 –––

0 –––

-50 –––

-45

-35

-40 -60

NBR

ACM

VMQ

General Oil Seal Materials NBR ACM VMQ FKM

10.2.1

= = = =

NITRILE POLYACRYLATE SILICONE FLUOROELASTOMER

FKM

Material Hardness Changes

Elastomeric materials harden when exposed to high temperatures for an ex tended duration.

ASTM D573 175 C Air Aged 20+

) 15+ A e r o h S ( e g 10+ n a h C s s e n d r a 5+ H

ACM/ AEM

VMQ

FKM 0+ 10

100

1000

Hours

ACM = Polyacrylate AEM = Ethylene Acrylic VMQ = Silicone FKM = Fluoroelastomer

10.2.2

Volume Changes

Material Volume Change

Relative Comparison of Elastomer/ Oil Compatibility

50

VMQ

ATSM D471 175 C x 70 Hrs (NBR @ 120˚ C)

40

AEM

30

% , e g n 20 a h C e m u 10 l o V

ACM

FKM

0

-10

(Engine oil)

60

80

100

120

(ATF)

Hours

ATSM No. 3 (69.5 C) 5W-30 SF (95 C) 10W-30 SF (103 C) ATSM No. 1 (123.9 C) Aniline Point C

NOTE: The elastomer compound recipe and the additive package used in the lubricant both have a dramatic impact on the degree of elastomer deterioration.

10.2.3

Durability

Material Durability Automotive Field Data - Engine Rear Seal Application Different materials have different levels of wear resistance.

1.2

+ ACM

VMQ

FKM

1

+

m m , d 0.8 n a B r a 0.6 e W p i L n 0.4 i a M

+ VMQ ACM

+ + + +

0.2

FKM

+

0 1,000

10,000

100,000

Mileage

ATSM No. 1 (123.9 C) ACM = Polyacrylate VMQ = Silicone FKM = Fluoroelastomer

10.2.4

Retraction Results

Cold Temperature Retraction Results While Whi le at low temperatures, temperatures, rubber loses its elastic elasticity ity.. The TR10 TR10 value v alue is i s used to to estimate estimate the low temperature temperature limit of rotating oil seals.

0

TR TR10 20

] % 40 [ n o i t c a e 60 R

FKM VMQ NBR

80

100 -80

ACM

AEM AE M -60

-40

-20

0

20

40

Temperature [˚C ]

Oil Seal Material Typical TR10 Values

NBR NBR NBR NBR NBR NBR LOW ACN ACN MID MID ACN ACN HI ACN ACN TR TRI0 ˚C -45 -30 -15 TR TRI0 ˚F -49 -22 5

10.2.5

ACM ACM

AEM

VMQ

-26 -15

-30 -22

-47 -53

FKM -17 1

Material Properties 1 =Little tle to no attack Medium

2 = Weak to moderate attack

3 =Strong attack to complete destructi truction

Temp.C NBR HNBR ACMVMQF QFK KMP MPT TFE

Accumulator acid (sulfuricacid) 60 Acetaldehyde, with aceticacid, 90/10 /10% 20 Acetamide 20 Aceticacid, aqueous, 25-60% 60 Aceticacid, dqueous, 85% 100 Aceticacid, glacial 60 Aceticanhydride 20 Aceticanhydride 80 Acetone 20 Acetophenone 20 Acetylene 60 Acrylicacid, Ethylester 20 Acrylonitril 60 Adipicacid, aqueous 20 Aero-engine fuels J P3 (MIL-J 5624) 20 Aero-engine fuels J P4 (MIL-J -5624) 20 Aero-engine fuels J P5 (MIL-J -5624) 20 Aero-engine fuels J P6 (MIL-J -2 -25656) 20 Air, oil-containing 80 Air, pure 80 Allyl alcohol 80 Alum, aqueous 60 Alum, aqueous 100 Aluminumsulphate, aqueous 60 Aluminumsulphate, aqueous 100 Ammonia, 100% 20 Ammonia, aqueous 40 Ammoniumacetate, aqueous 60 Ammoniumcarbonate 60 Ammoniumchloride, aqueous 60 Ammoniumfluoride, aqueous 20 Ammoniumfluoride, aqueous 100 Ammoniumnitrate, aqueous 60 Ammoniumnitrate, aqueous 100 Ammoniumphosphate, aqueous 60 Ammoniumsulphatae 60 Ammoniumsulphate 100 Ammoniumsulphide, aqueous 60 Ammoniumsulphide, aqueous 100 Amyl acetate 20 Amyl alcohol 60 Aniline 60 Anilinehydrochloride 20 Aniline hydrochloride 100 Anisole 20 Anthraquinone sulphonicacid, aqueous 30 Antifreeze (motor vehicle) 60 Antimony chloride, aqueous 20 Antimony trichloride, anhydrous 60

3 3 4 3 3 3 3 3 3 4 1 3 3 1 1 1 1 1 1 1 2 3 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 2 3 2 3 2 3 3 2 1 1 1

3 3 4 3 3 3 3 3 3 4 1 3 3 1 2 2 2 2 1 1 2 3 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 2 3 2 3 2 3 3 2 1 1 1

4 3 4 4 4 4 4 4 3 4 1 3 4 4 2 2 2 2 1 1 4 4 1 4 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4

4 3 4 4 4 4 4 4 3 4 1 3 3 4 3 3 3 3 1 1 4 4 1 4 4 4 2 4 4 4 1 4 4 4 4 4 4 4 4 4 4 3 2 4 4 4 1 1 4

1 3 4 4 4 4 4 4 3 4 1 3 3 1 1 1 1 1 1 1 3 1 1 1 3 3 3 3 3 1 1 3 1 1 3 1 3 1 3 3 3 3 1 4 4 4 1 1 4

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

4 = Please Please contact FNPGto FNPGto ensure Warranty arranty Avoidance

Medium Aqua regia Arsenicacid, aqueous Arsenicacid, aqueous Asphalt ASTMfuel A ASTMfuel B ASTMfuel C ASTMoil No.1 ASTMoil No.2 ASTMoil No.3 ATEbrake fluid ATF oil Bariumhydroxide, aqueous Bariumsalts, aqueous Beef tallowemulsion, sulphonated Beer Benzaldehyde, aqueous Benzene Benzicacid, aqueous Benzyl alcohol Bisulphitelye Bitumen Black lye Blast furnace gas Bleaching lye Bone oil Borax, aqueous Boricacid, aqueous Brake fluids (glycolether) Bromine water, saturated cold Bromine, liquid Bromine, vapor Bromobenzene Bunker oil Butadiene Butane, gaseous Butanediol, aqueous Butanediol, aqueous Butanol, aqueous Butanol, aqueous Butter Butter Butylacetate Butyl alcohol Butyl phenol Butylene glycol Butylene, liquid Butyne diol Butyraldehyde

Temp.C NBR HNBR ACMVMQF QFK KMP MPT TFE 20 60 100 100 60 60 60 100 100 100 100 100 60 60 20 20 60 20 60 60 50 60 100 100 60 60 60 60 80 20 20 20 20 60 60 20 20 60 20 60 20 80 20 60 20 60 20 20 20

3 1 1 4 1 2 3 1 1 1 3 1 1 1 1 1 3 3 1 4 2 3 2 2 3 1 1 1 3 3 3 3 4 2 4 1 1 1 1 3 1 1 3 3 3 1 1 1 4

3 1 1 4 1 2 3 1 1 2 3 1 1 1 1 1 3 3 1 4 2 3 2 2 3 1 1 1 3 3 3 3 4 2 4 1 1 1 2 3 1 1 3 3 3 1 1 1 4

3 4 4 4 2 3 3 1 1 1 3 3 4 4 4 1 4 3 4 4 4 4 4 1 4 1 4 4 3 4 4 4 4 4 4 1 4 4 2 4 4 4 4 4 3 4 4 4 4

3 4 4 4 3 3 3 1 1 2 1 2 4 1 2 1 4 3 1 2 4 4 4 1 4 2 1 1 1 4 4 4 4 4 2 4 4 4 1 4 1 4 4 4 3 1 4 4 4

3 1 3 4 1 1 1 1 1 1 3 1 1 1 1 1 1 2 1 4 4 1 1 1 2 1 1 1 4 4 4 4 4 4 1 1 2 4 2 4 1 1 3 4 2 2 1 2 4

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

10.3

1 =Little tle to no attack Medium

2 = Weak to moderate attack

Temp.C NBR HNBR ACMVMQF QFK KMP MPT TFE

Butyricacid, aqueous 20 Calciumbisulphite, aqueous 20 Calciumchloride, aqueous 100 Calciumhydroxide, aqueous 20 Calciumhypochlorite, aqueous 60 Calciumnitrate, aqueous 40 Calciumphosphate, aqueous 20 Camphor 20 Camphorated oil 20 Carbolinuem 80 Carbolinuem 60 Carbon dioxide, dry 60 Carbon disulphide 20 Carbon monoxide, dry 60 Carbon monoxide, moist 20 Carbon tetrachloride 60 Causticpotash, 50% 60 Causticsoda 20 Cellosolve 20 Chloral hydrate, aqueous 60 Chlroamine, aqueous 20 Chlorethanol 60 Chloricacid, aqueous 80 Chlorideof lime, aqueous 60 Chlorine water, saturated 20 Chlorine, dry gaseous 20 Chlorine, liquid 20 chlorine, moist gaseous 20 Chlorobenzene 20 Chlorobromomethane 20 Chloroform 20 Chlorsulphonicacid 20 Chromicacid, gaseous 60 Chromicacid, aqueous 60 Chromic acid/su / sulphuricacid/w / water 50/15/ 50/15/35% 35%4 40 Citricacid, aqueous 60 Clophen T64 100 Clopen-Atypes 100 Coconut fat 80 Coconut fatty alcohol 20 Coconut oil 60 Coconut oil 80 Cod-liver oil 20 Coking-oven gas 80 Copper fluoride, aqueous 50 Copper nitrate, aqueous 60 Copper sulphate, aqueous 60 copper (1) chloride, aqueous 20 Cottonseed oil 20 Cresol, aqueous 45 Crotonaldehyde 20

10.3

3 =Strong attack to complete destruction

1 1 1 1 3 1 1 1 1 3 4 1 3 1 1 3 2 2 4 3 1 3 3 3 3 3 3 3 3 4 3 3 3 3 3 1 3 3 1 1 1 1 1 3 1 1 1 1 1 3 4

1 1 1 1 3 1 1 1 2 3 4 1 3 1 1 3 2 2 4 3 1 3 3 3 3 3 3 3 3 4 3 3 3 3 3 1 3 3 1 1 1 1 1 3 1 1 1 1 1 3 4

4 4 4 4 3 4 4 4 4 3 4 1 4 1 1 4 3 3 4 4 4 4 4 4 4 4 4 4 3 4 4 3 4 4 4 4 4 4 1 4 1 4 1 4 4 4 4 1 4 4 4

4 4 1 1 4 1 1 4 4 3 4 1 3 1 1 4 3 3 4 4 4 4 4 4 4 4 4 4 3 4 4 3 4 4 4 4 2 1 1 4 1 4 1 4 4 4 4 1 4 4 4

1 1 1 1 2 1 1 2 2 1 4 1 1 1 1 1 3 3 4 2 4 3 2 1 1 2 2 2 2 2 2 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Medium

4 = Please Please contact FNPGto FNPGto ensure Warranty arranty Avoidance Temp.C NBR HNBR ACMVMQF QFK KMP MPT TFE

Cyclohexane 20 Cyclohexanol 20 cyclohexanone 20 Cyclohexylamine 20 Decahydronaphthalene (Decalin) 20 Decahydronaphthalene (Decalin) 60 Desmodur T 20 Desmophen 2000 80 Detergent, synthetic 60 Detergents 100 Dextrin, aqueous 60 Diacetone alcohol 20 Dibenzyl ether 20 Dibutyl ether 20 Dibutyl phthalate 20 Dibutyl phthalate 60 Dibutyl sebacate 60 Dichloraceticacid 60 Dichlorethane 20 Dichlorethylene 20 Dichlorobenzene 20 Dichlorobutylene 20 Dichloromethane 20 Diesel fuel 60 Diethyl ether 20 Diethyl sebacate 20 Diethylamine 20 Diethylene glycol 20 Diglycolicacid, aqueous 60 Dihexyl phthalate 60 Diisobutyl ketone 60 Dimethyl ether 20 Dimethylamine 20 Dimethylformamide 60 Dinonyl phthalate 30 Dioctyl phthalate 60 Dioctyl sebacate 60 Dioxane 60 Dipentene 20 Diphenyl 20 Diphenyl oxide 100 Engine oils 100 Epichlorhydrin 20 Essential Oils 20 Ethane 20 Ethanol 20 Ethanol 80 Ethanol w/ aceticacid(ferme (fermentationmixture) 20 Ethanol w/ aceticacid(ferme (fermentationmixture) 60 Ethyl acetate 60 Ethyl acrylate 20

1 1 3 3 3 3 3 1 1 1 1 2 3 3 3 3 3 3 3 3 3 3 3 1 3 3 2 1 2 3 3 3 3 3 3 3 3 3 2 3 4 1 4 3 1 1 3 3 3 3 3

1 1 3 3 3 3 3 1 1 1 1 2 3 3 3 3 3 3 3 3 3 3 3 2 3 3 2 1 2 3 3 3 3 3 3 3 3 3 2 3 4 1 4 3 1 1 3 3 3 3 3

2 4 4 4 2 2 3 4 3 4 4 4 4 4 4 4 4 4 3 4 4 4 3 2 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 1 4 4 4 4 4 3

2 4 4 4 4 4 4 4 4 4 1 4 4 4 1 1 2 4 3 4 4 4 3 2 4 4 4 1 4 4 4 4 4 3 4 4 4 4 4 4 4 2 4 4 2 1 4 4 4 1 3

1 4 4 3 2 2 4 4 1 2 1 4 3 3 1 2 4 3 2 2 1 2 1 1 3 2 3 1 1 3 3 3 3 3 3 3 3 3 1 1 4 1 3 2 1 4 3 3 3 3 3

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 =Little to no attack Medium

2 =Weak to moderate attack


Temp.C NBR HNBR ACMVMQFKMPTFE

Ethyl benzene 20 Ethyl chloride 20 Ethyl ether 20 Ethylene chloride 20 Ethylene diamine 60 Ethyleneglycol 100 Ethylene trichloride 20 Exhaust gasses,containing carbon dioxide 60 Exhaust gases, containing carbon monoxide 60 Exhaust gases, containing hydrogen chloride 60 Exhaust gases,containinghydrogenfluoride, traces60 Exhaustgases,containingnitrousgases,traces 60 Exhaust gases, containing nitrousgases, traces 80 Exhaust gases, containingsulphur dioxide 60 Exhaust gases, containing sulphuricacid 60 Exhaust gases, containing sulphuricacid 80 Fats; mineral, animal or vegetable 80 Fatty acids 100 Fatty alcohol 20 Fertilizer salt, aqueous 60 Fish oil 20 Fluorine, dry 60 Fluorobenzene 20 Fluorocarbon oils 100 Fluorosilicicacid 100 Fluorosilicicacid, aqueous 60 Formaldehyde, aqueous 60 Formamide 60 Formicacid, aqueous 60 Freon according… Fruit juice 100 Furane 20 Furfural 20 Furfuryl alcohol 20 Furnacegas, dry 60 Gas liquor 40 Gas oil 80 Gasohol 20 Gelatine, aqueous 40 Glaubers salt, aqueous (sodiumsulphate) 20 Glucose, aqueous 80 Glue 20 Glycerol chlorhydrin 60 Glycerol, aqueous 100 Glycine, aqueous, 10% 40 Glycol, aqueous 100 Glycolicacid, aqueous, 37% 20 Grape sugar, aqueous 80 Heating oil, mineral-oil based 60 Henkel P3 solution 100 Heptane 60 Hexachlorobutadiene 20 Hexachlorobutadiene 20 Hhexaldehyde 20

3 2 3 2 3 1 4 1 1 2 1 4 4 2 2 3 1 2 1 1 1 3 3 4 4 1 2 3 3

3 2 3 2 3 1 4 1 1 2 1 4 4 2 2 3 1 2 1 1 1 3 3 4 4 1 2 3 3

3 3 3 3 3 4 4 1 1 4 4 3 3 4 4 4 1 4 1 4 1 4 3 4 4 4 3 4 4

3 3 3 3 3 2 4 1 1 4 4 3 3 4 4 4 1 4 1 1 1 4 3 1 4 4 4 4 4

2 2 3 2 3 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 2 4 4 1 4 2 4

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

2 4 3 4 3 1 1 3 1 1 1 1 3 1 2 1 1 1 1 1 1 3 4 3

2 4 3 4 3 1 1 3 1 1 1 1 3 1 2 1 1 1 1 1 1 3 4 3

4 4 4 4 4 3 1 3 2 2 4 1 4 4 4 4 4 4 1 4 1 4 4 4

1 4 4 4 1 3 2 3 1 4 1 1 4 1 4 2 1 1 2 4 3 4 4 4

1 3 4 4 1 1 1 4 1 1 1 1 4 1 1 2 1 1 1 4 1 1 1 4

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Medium

4 =Please contact FNPGto ensure Warranty Avoidance Temp.C NBR HNBR ACMVMQFKMPTFE

Hexane 60 Hexanetriol 20 Hexene 20 Hydraulicfluids, hydraulicoils 80 Hydraulicfluids, oil-in-water emulsions HFA 55 Hydraulicfluids, phosphoricacid esterHFD 80 Hydraulicfluids,polyglycol-wateremulsions 60 Hydraulicfluids,water-inoil emoulsionsHFB 60 Hydrazine hydrate 20 Hydrobromicacid, aqueous 60 Hydrochloricacid, concentrated 80 Hydrochloricacid, concentrated 20 Hydrochloricacid, dilute 20 Hydrofluoricacid, concentrated 20 Hydrogen 20 Hydrogen chloridegas 60 Hydrogen peroxide, aqueous 20 Hydrogen sulphide, aqueous 60 Hydrogen sulphide, dry 60 Hydroquinone, acqueous 20 Hydrosulphite, aqueous 40 Hydroxylamine sulphate, aqueous 35 Ink 20 Iodine, tincture 20 Iodoform 20 Iron (III) chloride, aqueous 40 Isobutanol 20 Isoctane 20 Isophorone 20 Isopropanol 60 Isopropyl acetate 80 Isopropyl chloride 20 Isopropyl ether 60 Kerossene 20 Lactam 80 Lacticacid, aqueous 40 Lanolin (wool fat) 60 Laughing gas (nitrous oxide) 20 Lauryl alcohol 20 Lavender oil 20 Lead acetate, aqueous 60 Lead acetate, aqueous 100 Leadnitrate, aqueous 20 Lemon juice, undiluted 20 Linoleicacid 20 Linseed oil 60 Liquers 20 Lithiumbromide, aqueous 1 Lithiumchloride, aqueous 20 Machine oil, mineral 80 Magnesiumchloride, aqueous 100 Magnesiumsulphate, aqueous 100 Maizeoil (corn oil) 60 Maleicacid, aqueous 100

1 1 2 1 1 3 1 4 2 2 3 3 1 4 1 3 2 2 1 2 1 1 1 4 1 2 1 4 2 3 3 3 1 3 1 1 1 1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1

1 1 3 1 4 1 2 1 4 1 1 2 1 4 4 3 3 3 1 4 1 4 4 4 2 4 4 2 4 4 3 4 4 3 4 4 2 4 4 4 4 4 1 1 1 3 34 4 3 4 2 2 4 4 2 4 4 1 2 4 2 4 4 1 4 1 2 1 1 1 4 2 4 4 4 1 4 4 2 3 1 1 1 2 4 4 4 2 3 1 3 3 3 3 3 3 3 3 3 2 1 2 3 4 4 1 4 4 1 1 1 1 1 1 1 4 4 2 2 4 2 4 4 2 4 4 1 4 4 1 4 1 2 4 2 1 1 1 1 1 1 4 1 1 1 1 1 1 1 2 1 3 4 1 3 4 1 4 4 1 4 4

1 1 1 1 1 4 1 1 4 4 1 1 1 4 1 1 1 1 1 1 4 4 2 1 1 1 1 1 4 2 3 1 3 1 3 1 1 1 1 1 1 3 1 4 2 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

10.3




Maleicanhydride 60 Margarine 80 Marsh gas (methane) 20 Menthol 60 Mercury 60 Mercury salts, aqueous 60 Mesityl oxide 4 Methane 20 Methanol 60 Methoxy butanol 60 Methyl acrylate 20 Methyl bromide 20 Methyl chloride 20 Methyl ethyl ketone 20 Methyl isobutyl ketone 20 Methyl methacrylate 20 Methylamine, aqueous 20 Methylene chloride 20 Milk 20 Milk of lime 80 Mineral oil 100 Mineral water 60 Mixed acid I (sulphuricacid/nitricacid/water) 20 MixedacidII (sulphuricacid/phosphoricacid/water) 40 Molasses 100 Monobromobenzene 20 Monochloraceticacid 60 Monochloraceticaciid, ethyl ester 60 Monochloraceticacid, methyl ester 60 Morpholine 60 Myristyl alcohol 20 n-Propanol 60 Naftolen ZD 20 Naphtha 20 Naphthalene 60 Naphthoicacid 20 Natural gas 20 Natural gas, crude 20 Nickel acette, aqueous 20 Nickel chloride, aqueous 20 Nickel sulphate, aqueous 60 Nitricacid, dilute 80 Nitricacid, fuming 60 Nitric, concentrated 80 Nitrobenzene 60 Nitrogen 20 Nitrogen dioxide 20 Nitroglycerine 20 Nigroglycol, aqueous 20 Nitromethane 20 Nitropropage 20

10.3


4 1 1 3 1 1 4 1 2 1 3 3 3 3 3 3 3 3 1 3 1 1 3 3 1 3 2 3 3 3 1 2 2 3 3 2 1 1 1 1 1 2 3 3 3 1 4 3 3 3 3

4 1 1 3 1 1 4 1 2 1 3 3 3 3 3 3 3 3 1 3 1 1 3 3 1 3 2 3 3 3 1 2 2 3 3 2 1 1 1 1 1 2 3 3 3 1 4 3 3 3 3

4 1 1 4 1 4 4 1 4 4 3 3 4 3 3 3 4 3 4 4 1 4 3 4 4 3 4 3 3 4 1 4 4 2 4 4 4 1 4 4 4 4 4 4 3 1 4 4 4 3 3

4 1 1 4 1 1 4 1 1 4 3 3 4 3 3 3 4 3 1 4 2 1 3 4 4 3 4 3 3 4 1 1 4 4 4 4 1 1 4 4 4 2 4 4 3 1 3 4 4 3 3

1 1 1 2 1 1 1 1 4 1 3 1 2 3 3 3 3 1 1 1 1 1 1 1 1 2 4 2 2 4 1 2 1 1 1 1 1 1 4 1 1 1 3 3 1 1 4 1 1 3 3

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Medium Medium

4 =Please contact FNPGto ensure Warranty Avoidance Temp.C NBR HNBR ACMVMQFPM PTFE Temp.C NBR HNBR ACMVMQFKMPTFE

Nitrousgases (oxides of nitrogen) 20 o-Nitrotoluene 60 Octane 20 Octyl alcohol 20 Octyl cresol 20 Oil, crude 20 Oleum, 10% 20 Oleyl alcohol 20 Olive oil 60 Oxalicacid, aqueous 100 Ozone 20 Palmkernel fatty acid 60 Palmiticacid 60 Paraffin 60 Paraffin emulsions 40 Paraffin oil 60 Pectin 20 Pentachlorodiphenyl 60 Pentane 20 Peraceticacid <1% 40 Peraceticacid <10% 40 Perchlorethylene 60 Perchloricacid 100 Petrol 60 Petrol/ benzenemixture, 50/ 50% 20 Petrol/ benzenemixture, 60/ 40% 20 Petrol/ benzenemixture, 70/ 30% 20 Petrol/ benzenemixture, 80/ 20% 20 Petrol/ benzene/ ethanol, 50/ 30/ 20% 20 Petroleum 60 Petroleumether 60 Phenol, aqueous, up to 90% 80 Phynyl benzene 20 Phenyl ethyl ether 20 Phenyl hydrazine 60 Phenylhydrazinechlorhydrate, aqueous 80 Phosgene 20 Phosphien 20 Phosphoricacid, aqueous 60 Phosphorus oxychloride 20 Phosphorus trichloride 20 Photographicdeveloper 40 Photographicemulsions 20 Photograhicfixing baths 40 Phthalicacid, aqueous 60 Pickling solution (leather) 20 Picricacid 20 Picricacid, aqueous 20 Pine needle oil 20 Pine needle oil 60 Pinene 20

3 3 4 2 4 1 3 1 1 3 4 1 2 1 1 1 1 3 1 3 3 3 3 1 3 3 2 2 3 1 1 3 3 3 2 2 4 3 3 3 3 1 1 1 1 4 2 1 2 2 2

3 3 4 2 4 2 3 1 1 3 2 1 2 1 1 1 1 3 1 3 3 3 3 2 3 3 3 3 3 1 2 3 3 3 2 2 4 3 3 3 3 1 1 1 1 4 2 1 2 2 2

3 3 4 4 3 1 3 1 1 4 2 4 4 4 1 1 1 4 4 3 3 4 4 1 3 3 2 2 3 1 1 4 4 3 4 4 4 4 4 4 4 4 4 1 4 4 4 4 4 1 4

3 3 4 2 3 2 3 1 1 4 1 4 4 4 1 1 1 4 4 3 3 3 4 3 3 3 3 3 3 2 2 4 4 3 4 4 4 4 4 4 4 4 4 1 4 4 4 1 4 2 4

1 3 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 4 1 1 1 1 1 1 1 2 1 1 2 2 3 2 2 4 2 1 4 2 1 1 1 1 2 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1





Piperidine 4 Potash, aqueous 40 Potassiumacetate, aqueous 20 Potassiumbisulphate, aqueous 40 Potassiumborate, aqueous 60 Potassiumbromate, 10% 60 Potassiumbromide, aqueous 60 Potassiumcarbonate, aqueous 40 Potassiumchlorate, aqueous 60 Potassiumchloride, aqueous 60 Potassiumchromate, aqueous 20 Potassiumcyanide, aqueous 40 Potassiumcyanide, aqueous 80 Potassiumdichromate, aqueous 40% 20 Potassiumidodide, aqueous 60 Potassiumnitrate, aqueous 60 Potassiumperchloraate, aqueous 80 Potassiumpermanganate, aqueous 40 Potassiumpersulphate, aqueous 60 Potassiumsulphate, aqueous 60 Propane, liquid gaseous 20 Propargyl alcohol, aqueous 60 Propionicacid, aqueous 60 Propylene glycol 60 Propylene oxide 20 Prussicacid (hydrocyanicacid) 20 Pyridine 20 Pyrrole 20 Rapeseedoil 20 Refrigerant Sagrotan 20 Salicylicacid 20 Salt water 20 Sea water 20 Silicicacid, aqueous 60 Silicone grease 20 Silicone oil 20 Silver nitrate, aqueous 100 Silver salts, aqueous 60 skydrol 20 Soap solution, aqueous 20 Soda, aqueous 60 Sodiumbenzoate,aqueous 40 Sodiumbicarbonate, aqueous 60 Sodiumbisulphite, aqueous 100 Sodiumchlorate 20 Codiumchloride 100 Sodiumhypochlorite, aqueous 20 Sodiumnitrate, aqueous 60 Sodiumnitrite 60 Sodiumphosphate, aqueous 60 Sodiumsilicate, aqueous 60 Sodiumsulphate, aqueous 60 Sodiumsulphide 40

4 1 1 1 1 1 1 1 3 1 2 1 2 2 1 1 3 3 3 1 1 1 1 1 3 4 3 4 2

4 1 2 1 1 2 1 1 3 1 2 1 2 2 1 1 3 3 3 1 1 1 1 1 3 4 3 4 2

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 1 4 4 4 4 4 3 4 2

4 1 4 4 4 4 4 1 4 4 4 1 1 4 4 4 4 4 4 4 1 4 4 4 4 1 3 2 4

4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 4 3 4 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

2 1 1 1 1 1 1 2 2 3 1 2 1 1 1 3 1 2 1 2 1 1 1 1

2 1 1 1 1 1 1 2 2 3 1 2 1 1 1 3 1 2 1 2 1 1 1 1

4 4 4 4 4 1 1 4 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4

1 4 4 1 4 3 1 4 1 3 4 1 4 4 4 4 4 4 4 4 4 4 4 4

1 1 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

4 =Please contact FNPGto ensure Warranty Avoidance

Medium Sodiumthiosulphate Spermaceti Spindleoil Starch syrup Starch aqueous Steam Stearicacid Stoddard solvent Styrene Succinicacid, aqueous Sugar syrup Sulphur Sulphur chloride Sulphur dioxide, aqueous Sulphur dioxide,dry Sulphur dioxide, liquid Sulphur hexafluoride Sulphuricacid, concentrated Sulphuricacid, dilute sulphuryl chloride Tallow Tannicacid Tannin Tanning extract Tar Tar oil Tartaricacid, aqueous Test mediaASTMoil No.1 Test mediaASTMoil No. 2 Test mediaASTMoil No. 3 Tetrachlorethane Tetrachlorethylene Tetraethyl lead Tetrahydrofuran Tetrahydronaphthalene(tetralin) Thionyl chloride Thiophene Tin(II) chloride, aqueous Titaniumtetrachloride Toluene Town gas, benzenefree Transformer oil Transmission fluid, Type A Triacetin Tributoxyethyl phosphate Tributyl phosphate Trichloraceticacid, aqueous Trichlorethyl phosphage Trichlorethylene Tricresyl phosphate Triethanolamine Triethyl aluminum Triethyl borane Triglycoll

Temp.C NBR HNBR ACMVMQFKMPTFE 60 20 60 60 60 130 60 20 20 60 60 60 20 60 80 60 20 50 20 20 60 60 40 20 20 20 60 100 100 100 60 60 20 20 20 20 60 80 20 20 20 60 20 20 20 60 60 20 20 60 20 20 20 20

3 1 1 1 1 3 1 1 3 1 1 4 3 3 3 3 1 3 2 3 1 1 2 1 3 3 1 1 1 1 3 3 2 3 3 3 3 1 1 3 1 1 1 2 3 3 2 3 3 3 3 4 4 1

3 1 1 1 1 3 1 1 3 1 1 4 3 3 3 3 1 3 2 3 1 1 2 1 3 3 1 1 1 2 3 3 2 3 3 3 3 1 1 3 1 2 1 2 3 3 2 3 3 3 3 4 4 1

4 4 1 4 1 4 1 1 4 4 4 4 4 4 4 4 1 4 4 4 4 2 4 2 4 4 4 1 1 1 4 4 4 4 4 4 4 4 2 3 1 1 1 4 4 4 4 4 4 4 4 4 4 4

4 4 1 4 1 3 1 4 3 4 4 4 4 4 4 4 1 3 4 4 4 1 4 1 4 4 1 1 2 3 4 4 4 4 4 4 4 4 2 3 1 2 2 4 4 4 4 4 3 4 4 4 4 4

1 1 1 1 1 4 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 4 1 1 1 1 2 2 1 3 1 1 3 1 2 2 1 1 1 4 2 2 3 3 2 2 4 2 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

10.3

1 =Little to no attack


Medium



Trimethylol propane, aqueous Trinitrotoluene Trioctyl phosphate Trisodiumphosphage Turpentine Turpentine, oil of Urea, aqueous Vaseline Vaseline oil Vinyl acetate Vinyl chloride, liquid Water Wax alcohol

100 20 60 20 60 20 60 60 60 20 20 100 60

3 4 3 1 2 2 1 1 1 4 4 1 1

3 4 3 1 2 2 1 1 1 4 4 1 2

4 4 4 4 4 4 4 1 1 4 4 3 4

4 4 4 1 4 4 4 2 2 4 4 2 4

1 2 2 1 1 1 1 1 1 4 4 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1

4 =Please contact FNPGto ensure Warranty Avoidance

Medium


Whisky Whitelye Whiteoil Whitespirit Wine Xylamon (wood perservatives) Xylene yeast,aqueous Zeolites Zincacetate

20 100 20 60 20 20 20 20 20 20

1 2 1 1 1 3 3 1 1 2

1 2 1 2 1 3 3 1 1 2

4 4 1 1 4 3 3 4 1 1

1 4 1 4 1 4 3 1 1 1

1 3 1 1 1 2 2 1 1 1

1 1 1 1 1 1 1 1 1 1

Radial Shaft Seal Styles Simrit style designations...Simrit Europe

BA B1 B2 D D1 DRL DRR DRW F FG HD J L LD SD SL U UD X1 X2 X3 X4 X7

Rubber covered-spring loaded Metal O.D.-spring loaded Double metal case-spring loaded Flex section Profile to standard Left handed helix Right handed helix Bi-directional helix Ready molded lip Protected spring High pressure Sealing lip on O.D. Low friction seal Profile Seal Silicone profile Ready molded dust lip Universal profile Triangle profile O.D. specifications Sealing lip specifications Ready molded helix Dust lip inside sealing lip Grooved O.D.

BL With metal part OB Without metal part NIBL Stainless steel metal part MSBLBrass metal part ALUBL Aluminum metal part OF Without spring NIF Stainless steel spring BRF Bronze spring STF Steel spring SF Special Feature 11.0.5

Simrit style designations...NOK

S T V K D

Spring loaded single lip Auxiliary Lip(s) spring loaded main lip Non-spring loaded single lip Auxiliary lip and non-spring loaded main lip Double lip, both spring loaded

A B C M

Assembled seal - metal O.D. Metal O.D. (non-assembled) Rubber covered O.D. Combination assembled seal

3 4 6 9 L V

Auxiliary lip directed toward main lip Two stepped main lip Three stepped main lip Side lip Reciprocal special outward dust lip Medium pressure main lip

2 5 J K 1 N H

Rubber bond area minimized with Metal O.D. Flange PTFE lip member Non-woven fabric lip Lip reinforcing retainer for single lip seal High pressure double lip seal with lip retainer Hydrodynamic aid to main lip (Helix)

Glossary of Terms Assembled spring – Inside Diameter:

The inner diameter of the garter spring, with the ends securely joined.

Axial clearance: The gap between the toe

face to the head section and the inside surface of the inner case.

Circumferential surface roughness:

Surface roughness of a shaft measured in a direction (plane) normal to the centerline axis.

Cocked assembly: An installation in which

the plane of the outside seal face is not perpendicular to the shaft axis.

Coil: One turn of the coiled wire garter spring. Contact approach angle: Synonym:

Angle, Outside lip

Contact line: The line of intersection between

the outside and inside lip surfaces of a radial shaft seal. In a cross-section view, this intersection is illustrated as a point.

Contact line height: The axial distance from

the outside seal face to the lip contact line.

Contact width: The width of the lip contact

area of a radial shaft seal, measured in the axial direction.

Crack: A sharp break or fissure in the sealing

element.

Cut: A deep discontinuity in the seal material

whereby no material is removed.

Deformation: A stress induced change of

form or shape.

Dynamic Run-out: Twice the distance the

center of the shaft is displaced from the center of rotation and expressed in TIR. That Run-out to which the seal lip is subjected due to the outside diameter of the shaft not rotating in a true circle. Synonym: Shaft Run-out

Elastomer: An elastic rubber like substance.

Extrusion: Permanent displacement of part of

a seal into a gap, under the action of fluid pressure.

Fluid side: The side of the seal which in

normal use faces toward the fluid being sealed.

Functional lip diameter: The apparent

inner diameter of the seal when the seal case is concentric with the outer diameter of the sizing mandrel in an air gage, light box, or similar inspection equipment.

Garter spring: A helically coiled wire with

its’ ends connected to form a ring. It is used in tension for maintaining a radial sealing force between element of a radial lip seal and a shaft.

Heel: Synonym: Heel section Heel section: The portion of a lip seal which

is attached to the seal case and bounded by the flex section and the outside face.

Helix contact width: The axial width of that

portion of the contact surface of a helix seal which is formed by the helical ribs. It is equal to the total axial width of the contact surface minus the width of the static lip.

Housing bore: A cylindrical surface which

mates with the outside diameter of the outer seal case.

Hydrodynamic seal: A dynamic sealing

device which utilizes the viscous shear and inertia forces of the fluid; imparted by a helically grooved or ribbed seal lip, to generate a pressure differential that opposes fluid flow.

Inclusion: Foreign matter included in the seal

material.

Inner case: A rigid, cup-shaped component of

a seal assembly, which is placed inside the outer seal case. It has one or more of the following functions: reinforcing member, shield, spring retainer, lipclamping device.

12.0

Inside face: That surface of the inner case

which faces, and is usally in contact with, the fluid being sealed.

Inside single lip angle: The angle between

the inside lip surface and the axis of the seal case.

Lip diameter: The inner diameter of the seal

lip, measured with the spring installed.

Lip force: The radial force exerted by an

extension spring and/ or lip of a seal on the mating shaft. Lip force is expressed as force per unit of shaft circumference.

Lip height: The axial distance from the outside

seal face to the toe face.

Lip ID to ID eccentricity: See: Radial Wall

Variance

Lip opening pressure: The pressure neces-

sary for flowing air at 10000 cc/ min. between the contact surface of a radial lip seal and shaft-size mandrel under the following conditions: the seal case outer diameter clamped to be concentric with the mandrel and the pressurized air applied to the outside lip surface.

Plunge ground: The surface texture of shaft

or wear sleeve produced by presenting the grinding wheel perpendicular to the rotating shaft without axial motion.

Primary lip: The normally flexible elastomeric

component of a shaft seal assembly, which rides against the rotating surface and affects the seal.

Radial lip seal: A type of seal which features

a flexible sealing member referred to as a lip. The lip is usually an elastomeric material. It exerts radial sealing pressure on a mating shaft in order to retain fluids and/ or exclude foreign matter.

Radial load: The total force (load) acting on

the seal lip which tends to maintain contact of the lip on the shaft. It is the sum of the forces developed from seal interference and the garter spring.

Radial wall variation: the difference

between the minimum and the maximum radial wall dimensions when measured around 360 degrees, of the seal lip.

Rib: A long, narrow projection which is

leakage in dynamic and static applications by reason of controlled interference between the seal lip and the mating surface.

normally triangular in cross-section and which is molded into the outside lip surface of a helical seal. It is oriented at an angle to the shaft axis. One end of the rib forms part of the seal-lip contact surface.

Lubricant starvation: Lack of proper lubrica-

Rough trim: A trimmed surface with irregulari-

Offset: The radial distance between the axis of

Roughness: Irregularities in shaft surface

Lip seal: An elastomeric seal which prevents

tion at the seal interface which may cause premature wear and early failure. the seal bore and axis of shaft rotation.

Oil seal: A seal designed primarily for the

retention of oil.

Outer case: the outer thin-wall rigid structure of

the lip seal assembly which contains the inner case, the primary seal ring, the spring and the secondary seal.

Outside lip angle: The angle between the

outside lip and the axis of the seal case.

12.0

ties on the outside and inside lip surfaces in the immediate vicinity of the contact line texture which result from the production process. (See SAE J448a [June, 1963].)

Scratch: A shallow discontinuity in the seal

material whereby no material is removed.

Seal assembly: A group of parts, which

includes sealing surfaces, provisions for initial loading, and a secondary sealing mechanism which accommodates the radial movement necessary for installation and operation.

Seal case: A rigid member to which the seal

lip is attached.

Seal outer diameter: The external diameter

of a lip-seal assembly.

Shaft eccentricity: The radial distance in

which the geometric center of a shaft is displaced from the axis of shaft rotation.

Shaft lead: Spiral grooves on a shaft surface

caused by relative axial movement of grinding wheel to shaft.

Shaft Run-out: See: Dynamic Run-out Shaft surface finish: See: Shaft Surface

Texture

Shaft surface texture: A term used to

describe the quality, appearance or characteristics of the shaft surface resulting from operations, such as grinding, polishing, burnishing, etc. (See SAE J448a [June, 1963]).

Slip stick: A friction related phenomena in

which the sealing element tends to adhere and rotate with the shaft surface momentarily until the elastic characteristics of the sealing element overcome the adhesive force, causing the seal lip to lose connection with the rotating shaft long enough to allow leakage. This cycle repeats itself continuously and is normally associated with non-lubricated and boundary-lubricated conditions

Spiral trim: A trimmed surface which has a

spiral pattern.

Spring groove: A depression formed in the

head section of the seal. It is generally semicircular in form and serves to accommodate and locate the garter spring.

Trim: The removal of superfluous parts from a

molded product, usually removal of parting line flash or feed spews.

Trim cut: Damage to the elastomeric portion of

the seal during trimming.

Trimming angle: The angle between the

trimmed face of a seal lip and the seal axis.

Trimmed lip diameter: The lip diameter in

the free state (no spring) developed by knife trimming the molded portion of the sealing element to form the contact line.

Unbonded flash: Flash which does not

adhere to the mating material.

Unirotational seal: A seal, designed for

applications having a single direction of shaft rotation.

Unitized seal: A seal assembly in which all

components necessary for accomplishing the complete sealing function are retained in a single package.

Under-cure: A degree of cure less than

desired.

Volume swell: Increase in physical size

caused by the swelling action of a liquid, generally expressed as a percent of the original volume.

Wear sleeve: A replacement metal ring

generally used in assemblies to eliminate expensive shaft replacement caused by grooving that may occur at the seal-shaft interface.

Weepage: A minute amount of liquid leakage

by a seal.

Spring outside coil diameter: The outer

diameter of an individual helical coil of a garter spring.

Spring retaining lip: The portion of the

primary lip that restricts the axial movement of the extension spring from a predetermined position.

12.0

Conversion Charts Medium

Fraction - mm Fraction

Decimal

0

0 1/64 1/32 3/64 1/16 5/64 3/32 7/64

0.016 0.031 0.047 0.063 0.078 0.094 0.109

0.397 0.794 1.191 1.588 1.984 2.381 2.778

25.400 25.797 26.194 26.591 26.988 27.384 27.781 28.178

50.800 51.197 51.594 51.991 52.399 52.784 53.581 53.578

76.200 76.597 76.994 77.391 77.788 78.184 78.581 78.978

101.600 101.997 102.394 102.791 103.188 103.584 103.981 104.378

127.000 127.397 127.794 128.191 128.588 128.984 129.381 129.778

152.400 152.797 153.194 153.591 153.988 154.384 154.781 155.178

177.800 178.197 178.594 178.991 179.388 179.784 180.181 180.578

203.200 203.597 203.994 204.391 204.799 205.184 205.581 205.978

228.600 228.997 239.394 229.791 230.188 230.584 230.981 231.378

254.000 254.397 254.794 255.191 255.588 255.984 256.381 256.778

1/8 9/64 5/32 11/64 3/16 13/64 7/32 15/64

0.013 0.141 0.156 0.172 0.188 0.203 0.219 0.234

3.175 3.572 3.969 4.366 4.762 5.159 5.556 5.953

28.575 28.972 29.369 29.766 30.162 30.559 30.956 31.353

53.975 54.372 54.769 55.166 55.562 55.959 56.356 56.753

79.375 79.772 80.169 80.566 80.962 81.359 81.756 82.153

104.775 105.172 105.569 105.966 106.362 106.759 107.156 107.553

130.175 130.572 130.969 131.366 131.762 132.159 132.556 132.953

155.575 155.972 156.369 156.766 157.162 157.559 157.956 158.353

180.975 181.372 181.769 182.166 182.562 182.959 183.356 183.753

206.375 206.772 207.169 207.566 207.962 208.359 208.756 209.153

231.775 232.172 232.569 232.966 233.362 233.759 234.156 234.553

257.175 257.572 257.969 258.366 258.762 259.159 259.556 259.953

1/4 17/64 9/32 19/64 5/16 21/64 11/32 23/64

0.250 0.266 0.281 0.297 0.313 0.328 0.344 0.359

6.350 6.747 7.144 7.541 7.938 8.334 8.731 9.128

31.750 32.147 32.544 32.941 33.338 33.734 34.131 34.528

57.150 57.547 57.944 58.341 58.738 59.134 59.531 59.928

82.550 82.947 83.344 83.741 84.138 84.534 84.931 85.328

107.950 108.347 108.744 109.141 109.538 109.934 110.331 110.728

133.350 133.747 134.144 134.541 134.938 135.334 135.731 136.128

158.750 159.147 159.544 159.941 160.338 160.734 161.131 161.528

184.150 184.547 184.944 185.341 185.738 186.134 186.531 186.928

209.550 209.947 210.344 210.741 211.138 211.534 211.931 212.328

234.950 235.347 235.744 236.141 236.538 236.334 237.331 237.728

260.350 260.747 261.144 261.541 261.938 262.334 262.731 263.128

3/8 25/64 13/32 27/64 7/16 29/63 15/32 31/64

0.375 0.391 0.406 0.422 0.438 0.456 0.469 0.484

9.525 9.922 10.319 10.716 11.112 11.509 11.906 12.303

34.925 35.322 35.719 36.116 36.512 36.909 37.306 37.703

60.325 60.722 61.119 61.516 51.912 62.309 62.706 63.103

85.725 86.122 86.819 86.916 87.312 87.709 88.106 88.503

111.125 111.522 111.919 112.316 112.712 113.109 113.506 113.903

136.525 136.922 137.319 137.716 138.112 138.509 138.906 139.303

161.925 162.322 162.719 163.116 163.512 163.909 164.306 164.703

187.325 187.722 188.119 188.516 188.912 189.309 189.706 190.103

212.725 213.122 213.519 213.916 214.312 214.709 215.106 215.503

238.125 238.522 238.919 239.316 239.712 240.109 540.506 240.903

263.525 263.922 264.319 264.716 265.112 265.509 265.906 266.303

1/2 33/64 17/32 35/64 9/16 37/64 19/32 39/64

0.500 0.516 0.531 0.547 0.563 0.578 0.594 0.609

12.700 13.097 13.494 13.891 14.288 14.684 15.081 15.478

38.100 38.497 38.894 39.291 39.688 40.084 40.481 40.878

63.500 63.897 64.294 64.691 65.088 65.484 65.881 66.278

88.900 89.297 89.694 90.091 90.488 90.884 91.281 91.678

114.300 114.697 115.094 115.491 115.888 116.284 116.681 117.078

139.700 140.097 140.494 140.891 141.288 141.684 142.081 142.478

165.100 165.497 165.894 166.291 166.688 167.084 167.481 167.878

190.500 190.897 191.294 191.691 192.088 192.484 192.881 193.278

215.900 216.297 216.694 217.091 217.488 217.884 218.281 218.678

241.300 241.697 242.094 242.491 242.488 243.284 243.681 244.078

266.700 267.097 267.494 267.891 268.288 268.684 269.081 269.478

5/8 41/64 21/32 43/64 11/16 45/64 23/32 47/64

0.625 0.641 0.656 0.672 0.688 0.703 0.719 0.731

15.875 16.272 16.669 17.066 17.462 17.859 18.256 18.653

41.275 41.672 42.069 42.466 42.862 43.259 43.656 44.053

66.675 67.072 67.469 67.866 68.262 68.659 69.056 69.453

92.075 92.472 92.869 93.266 93.662 94.059 94.456 94.853

117.475 117.872 118.269 118.666 119.062 119.459 119.856 120.253

142.875 143.272 143.669 144.066 144.462 144.859 145.256 145.653

168.275 168.672 169.069 169.466 169.862 170.259 170.656 171.053

193.675 194.072 194.469 194.866 195.262 195.659 196.056 196.453

219.075 219.572 219.869 220.266 220.662 221.059 221.456 221.853

244.475 244.872 245.269 245.666 245.062 246.459 246.856 247.253

269.875 270.272 270.669 271.066 271.462 271.859 272.256 272.653

3/4 49/64 25/32 51/34 13/16 53/64 27/32 55/64

0.750 0.766 0.781 0.797 0.813 0.828 0.844 0.859

19.050 19.447 19.844 20.241 20.638 21.034 21.431 21.828

44.450 44.847 45.244 45.641 46.038 46.434 46.831 47.228

69.850 70.247 70.644 71.041 71.438 71.834 72.231 72.628

95.250 95.647 96.044 96.441 96.838 97.234 97.631 98.028

120.650 121.047 121.444 121.841 122.238 122.634 123.031 123.428

146.050 146.447 146.814 147.241 147.638 148.034 148.431 148.828

171.450 171.847 172.244 172.641 173.038 173.434 173.831 174.228

96.850 197.247 197.644 198.041 198.438 198.834 199.231 199.628

222.250 222.647 223.044 223.441 223.838 224.234 224.631 225.028

247.650 248.047 248.444 248.841 249.248 249.634 250.031 250.428

273.050 273.447 273.844 274.241 274.638 275.034 275.431 275.828

7/8 57/64 29/32 59/64 15/16 61/64 31/32 63/64

0.875 0.891 0.906 0.922 0.938 0.935 0.969 0.984

22.225 22.622 23.019 23.416 23.812 24.209 24.606 25.003

47.625 48.022 48.419 48.816 49.212 49.609 50.006 50.403

73.025 73.422 73.819 74.216 74.612 75.009 75.406 75.803

98.425 98.822 99.219 99.616 100.012 100.409 100.806 101.203

123.825 124.222 124.619 125.016 125.412 125.809 126.206 126.203

149.225 149.622 150.019 150.416 150.812 151.209 151.606 152.003

174.625 175.022 175.419 175.816 176.212 176.609 177.006 177.403

200.025 200.422 200.819 201.216 199.628 202.009 202.406 202.803

225.425 225.822 226.219 226.016 227.012 227.409 227.806 228.203

250.825 251.222 251.619 252.016 252.412 252.809 253.206 253.013

276.225 276.622 277.019 277.416 277.812 278.209 278.606 279.003

13.0

1

2

3

4

5

Temp.C NBR HNBR ACMVMQFPM PTFE 6

7

8

9

10

Temperature C

F or C

F

C

F or C

F

C

F or C

F

C

F or C

F

C

F or C

F

-100 -99 -98 -97 -96 -95 -94 -96 -92 -91 -90 -89 -88 -87 -86 -85 -84 -83 -82 -81

-148.0 -146.2 -144.4 -142.6 -140.8 -139.0 -137.2 -135.4 -133.6 -131.8 -130.0 -128.2 -126.4 -124.6 -122.8 -121.0 -119.2 -117.1 -115.6 -113.8

-62.2 -61.7 -61.1 -60.6 -60.0 -59.4 -58.9 -58.3 -57.8 -57.2 -56.7 -56.1 -55.6 -55.0 -54.4 -53.9 -53.3 -52.8 -52.2 -51.7

-80 -79 -78 -77 -76 -75 -74 -73 -72 -71 -70 -69 -68 -67 -66 -65 -64 -63 -62 -61

-112.0 -110.2 -108.4 -106.6 -104.8 -103.0 -101.2 -99.4 -97.6 -95.8 -94.0 -92.2 -90.4 -88.6 -86.8 -85.0 -83.2 -81.4 -79.6 -77.8

-51.1 -50.6 -50.0 -49.4 -48.9 -48.3 -47.8 -47.2 -46.7 -46.1 -45.6 -45.0 -44.4 -43.9 -43.3 -42.8 -42.2 -41.7 -41.1 -40.6

-60 -59 -58 -57 -56 -55 -54 -53 -52 -51 -50 -49 -48 -47 -46 -45 -44 -43 -42 -41

-76.0 -74.2 -72.4 -70.6 -68.8 -67.0 -65.2 -63.4 -61.6 -59.8 -58.0 -56.2 -54.4 -52.6 -50.8 -49.0 -47.2 -45.4 -43.6 -41.8

-40.0 -39.4 -38.9 -38.3 -37.8 -37.2 -36.7 -36.1 -35.6 -35.0 -34.4 -33.9 -33.3 -32.8 -32.2 -31.7 -31.1 -30.6 -30.0 -29.4

-40 -39 -38 -37 -36 -35 -34 -33 -32 -31 -30 -29 -28 -27 -26 -25 -24 -23 -22 -21

-40.0 -38.2 -36.4 -34.6 -32.8 -31.0 -29.2 -27.4 -25.6 -23.8 -22.0 -20.2 -18.4 -16.6 -14.8 -13.0 -11.2 -9.4 -7.6 -5.8

-28.9 -28.3 -27.8 -27.2 -26.7 -26.1 -25.6 -25.0 -24.4 -23.9 -23.3 -22.8 -22.2 -21.7 -21.1 -20.6 -20.0 -19.4 -18.9 -18.3

-20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1

-4.0 -2.2 -0.4 1.4 3.2 5.0 6.8 8.6 10.4 12.2 14.0 15.8 17.6 19.4 21.2 23.0 24.8 26.6 28.4 30.2

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

32.0 33.8 35.6 37.4 39.2 41.0 42.8 44.6 46.4 48.2 50.0 51.8 53.6 55.4 57.2 59.0 60.8 62.6 64.4 66.2

-6.6 -6.1 -5.5 -5.0 -4.4 -3.9 -3.3 -2.8 -2.2 -1.6 -1.1 -0.6 0.0 0.5 1.1 1.6 2.2 2.7 3.3 3.8

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

68.0 69.8 71.6 73.4 75.2 73.0 78.8 80.6 82.4 84.2 86.0 87.8 89.6 91.4 93.2 95.0 96.8 98.6 100.4 102.2

4.4 4.9 5.5 6.0 6.6 7.1 7.7 8.2 8.8 9.4 10.0 10.5 11.1 11.4 12.2 12.7 13.3 13.9 14.4 15.0

40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

104.0 105.8 107.6 109.4 111.2 113.0 114.8 116.6 118.4 120.2 122.0 123.8 125.6 127.4 129.2 131.0 132.8 134.6 136.4 138.2

15.6 16.1 16.6 17.2 17.7 18.3 18.9 19.4 20.0 20.5 21.1 21.6 22.2 22.7 23.3 23.9 24.4 25.0 25.5 26.1

60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 75 77 78 79

140.0 141.8 143.6 145.4 147.2 149.0 150.8 152.6 154.4 156.2 158.0 159.8 161.6 163.4 165.2 167.0 168.8 170.6 172.4 174.2

26.7 27.2 27.8 28.3 28.9 29.4 30.0 30.5 31.1 31.6 32.2 32.7 33.3 33.8 34.4 35.0 35.5 36.1 36.6 37.2 37.7

80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

176.0 177.8 179.6 181.4 183.2 185.0 186.8 188.6 190.4 192.2 194.0 195.8 197.6 199.4 201.2 203.0 204.8 206.8 208.4 210.2 212.0

100 to 1000 38.0 100 43.0 110 49.0 120 54.0 130 60.0 140 65.0 150 71.0 160 76.0 170 83.0 180 88.0 190 93.0 200 99.0 210 100.0 212 104.0 220 110.0 230 115.0 240 121.0 250 127.0 260 132.0 270 138.0 280

212.0 230.0 248.0 266.0 284.0 302.0 320.0 338.0 356.0 374.0 392.0 410.0 413.0 428.0 446.0 464.0 482.0 500.0 518.0 536.0

143.0 149.0 154.0 160.0 165.0 171.0 177.0 182.0 188.0 193.0 199.0 204.0 210.0 215.0 221.0 226.0 232.0 238.0 243.0 249.0

290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480

554.0 572.0 590.0 608.0 626.0 644.0 662.0 680.0 690.0 716.0 734.0 752.0 770.0 788.0 806.0 824.0 842.0 860.0 878.0 896.0

254.0 260.0 265.0 271.0 276.0 282.0 288.0 293.0 299.0 304.0 310.0 315.0 321.0 326.0 332.0 338.0

490 500 510 520 530 540 550 560 570 580 590 600 610 620 630 640

914.0 932.0 950.0 968.0 986.0 1004.0 1022.0 1040.0 1058.0 1076.0 1094.0 1112.0 1130.0 1148.0 1166.0 1184.0

343.0 349.0 354.0 360.0 365.0 371.0 376.0 382.0 387.0 393.0 399.0 404.0 410.0 415.0 421.0 449.0

650 660 670 680 690 700 710 720 730 740 750 760 770 780 790 840

1202.0 1220.0 1238.0 1256.0 1274.0 1292.0 1310.0 1328.0 1346.0 1364.0 1382.0 1400.0 1418.0 1436.0 1454.0 1544.0

454.0 460.0 465.0 471.0 476.0 482.0 487.0 493.0 498.0 504.0 510.0 515.0 520.0 526.0 532.0 538.0

850 860 870 880 890 900 910 920 930 940 950 960 970 980 990 1000

1562.0 1580.0 1598.0 1616.0 1634.0 1652.0 1670.0 1688.0 1706.0 1724.0 1742.0 1760.0 1778.0 1796.0 1814.0 1832.0

-100 to 0 -73.3 -72.8 -72.2 -71.7 -71.1 -70.6 -70.0 -69.4 -68.9 -68.3 -67.8 -67.2 -66.7 -66.1 -65.6 -65.0 -64.4 -63.9 -63.3 -62.8 0 to 100 -17.7 -17.2 -16.6 16.1 -15.5 -15.0 -14.4 -13.9 -13.3 -12.7 -12.2 -11.6 -11.1 -10.5 -10.0 -9.4 -8.8 -8.3 -7.7 -7.2

13.0

Radial Shaft Seals Manual

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