SKF Industrial Gearbox 2

8 Application examples

Application examples In this section various interesting and wellproven gearbox designs from important manufacturers are presented. In order to give a clear presentation, the most important technical data are presented in table form. This has made it possible to avoid long descriptions. The gearbox drawings will certainly inspire designers.

Numerous discussions with manufacturers, which preceded the selection of the gearboxes shown here, confirmed that there is a trend towards specialist gearboxes in order to better satisfy, both technically and economically, the demands of individual applications. However, as often as possible the designs use components from standard series – an advantage not least from a logistics point of view. In the following examples the bearings used are listed starting with those for the input shaft and following the order in which they occur in the power train. The examples show that bearings of standard series are preferred and only a few special bearings are used. The examples also confirm an earlier observation in the section dealing with bearing arrangements for gear shafts, namely that virtually all “catalogue” bearing types are used in gearboxes. SKF, with its comprehensive

range of technically advanced standard bearings, assists the designer in producing technically and economically competitive gearboxes.

8

115


Bevel/spur

116

Application

Universal (e.g. conveyor drive)

Manufacturer

A. Friedr. Flender AG, Bocholt, Germany

Input drive

Depending on application

Drive rating

P = 53 kW

Drive speed

n = 1 500 r/min

Total ratio

i = 1 : 63

Power take-off

Depending on application: solid, flanged or hollow shaft

Output torque

M2 = 23 800 Nm

Dimensions

960 × 580 × 300 mm

Mass

G = 635 kg

Gears

Case hardened

Lubrication type

Oil bath

Lubricant

Oil with viscosity to ISO VG 460

Operating temperature

Tmax = 90 °C

Sealing

Radial shaft seals, or largely wear-free labyrinth seals

Bearings No. 1 shaft No. 2 shaft No. 3 shaft No. 4 shaft

2 × 32309 BJ2 2 × 32310 J2 2 × 32314 J2 2 × 30224 J2

Minimum bearing life

Depending on application


8

117


Bevel/spur, two-stage Application

General industrial

Manufacturer

Rossi Motoriduttori, Modena, Italy

Input drive

Electric motor

Drive rating

P = 134 kW

Drive speed

n = 1 400 r/min

Total reduction

i = 10,3 : 1

Output torque

M2 = 9 470 Nm

Dimensions

817 × 450 × 334 mm

Mass

G = 282 kg

Gears

Hardened

Lubrication type

Oil bath

Lubricant

EP oil with viscosity to ISO VG 220


T = 65 to 80 °C

Sealing

Radial shaft seals

Bearings No. 1 shaft No. 2 shaft No. 3 shaft

2 × 32310 B 2 × 32312 2 × 32026

Remarks

118

Universal attachment possible; stiff, one-piece casing; standard hollow shaft at output side; choice of drive shaft arrangement (position)


8

119


Worm, single stage

120

Application

Tilting arrangement

Manufacturer

A. Friedr. Flender, Bocholt, Germany

Input drive

Electric displaceable anchor motor, V-belts

Drive rating

P = 2,3 kW

Drive speed

n = 636 r/min

Total ratio

i = 40 : 1

Output drive

Hollow shaft, cartridge type

Output torque

M2 max = 2 350 Nm

Dimensions

364 × 394 × 221 mm

Mass

G = 65 kg

Gears

Concave flank teeth, worm case hardened and ground, worm wheel of bronze

Lubrication type

Oil bath; worm wheel bearing greased

Lubricants

Polyglycol oil with viscosity to ISO VG 680; worm wheel: rolling bearing grease


Tmax = 100 °C (oil bath)

Sealing

Radial shaft seals at input and output sides

Bearings Worm shaft Wheel

2 × 31308 J2 2 × 6017 or 2 × 32017 X

Remarks

Cooling by fan wheel on worm shaft


8

121


Eccentric drive with cycloid cams

122

Application

General industrial

Manufacturer

SUMITOMO CYCLO EUROPE, Markt Indersdorf, Germany

Input drive

Via coupling

Drive rating

P = 1 kW

Drive speed

n = 1 500 r/min

Total reduction

i = 357 : 1

Output drive

Output shaft with key

Output torque

M2 = 1 810 Nm

Dimensions

300 ∅ × 439 mm

Mass

G = 69 kg

Lubrication type

Grease


T = 60 °C

Sealing

Radial shaft seals on input and output shafts


1 × 6302-Z; 1 × 6302 1 × 6207; 1 × 6307 1 × 6215-Z; 1 × 6213-ZNR


8

123


Bevel gear, single stage Application

Kaplan turbine/generator

Input drive

Kaplan turbine

Rating

P = 2 005 kW

Speed

n = 232 r/min

Torque

M1 = 82 500 Nm (turbine)

Total ratio

i = 1 : 3,23

Power take-off

Lamellar coupling (rotationally stiff, can bend elastically, with slipping elements), generator

Dimensions

1 730 × 1 600 × 3 056 mm

Mass

G = 9 000 kg

Gears

Cyclopalloid/HPG, case hardened

Lubrication type

Circulating oil

Lubricant



T = 65 °C

Seals

Radial shaft seals on input and output shafts (on the input shaft with chamber for oil seepage)

Bearings No. 1 shaft

124

No. 2 shaft

1 × NU 1064 MA; 1 × 23060 CC/W33; 1 × 29360 E; 1 × 29248 1 × 22348 CC/C3W33; 1 × 32040 X; 1 × 29340 E


L10h = 100 000 operating hours

Remarks

Turbine shaft = gearbox input shaft. Turbine blade adjustment via input shaft. Each bearing has temperature monitoring. Connections for shock pulse measurements. Very smooth running for environmental reasons.


8

125


Spur gear, two-stage

126

Application

Wind power plant

Manufacturer

Renk AG, Rheine, Germany

Input drive

Wind turbine, claw coupling

Rating

P = 168 kW

Speed

n = 63 r/min

Input torque

M1 = 25 480 Nm

Total ratio

i = 1 : 28,97

Power take-off

Elastic coupling, generator

Dimensions

1 215 × 900 × 1 000 mm

Mass

G = 1 350 kg

Gears

Helical cut, case hardened, ground

Lubrication type

Oil bath

Lubricant

Polyglycol oil with viscosity to ISO VG 220


T ≈ 80 °C

Seals

Felt ring + 2 × V-rings (input) Labyrinth + 2 × V-rings (output)


1 × 22315 E; 1 × NU 313 ECJ 2 × 22319 E 1 × NJ 228 ECJ/C3; 1 × 24034 CC/W33



Remarks

Monitored by temperature recorder


8

127


Planetary spur gear, two-stage

128

Application

Wind power plant

Manufacturer

David Brown, Huddersfield, Great Britain

Input drive

Wind turbine, socket connection with clamping rings

Rating

P = 1 150 kW

Speed

n = 24,5 r/min

Input torque

M1 = 448 000 Nm

Total ratio

i = 1 : 41,63

Power take-off

Elastic coupling, generator

Dimensions

1 730 × 2 748 × 2 100 mm

Mass

G = 9 500 kg

Gears

Planetary wheels straight cut Spur wheels helical cut, case hardened and ground

Lubrication type

Circulating oil

Lubricant

Synthetic oil with viscosity to ISO VG 320 EP

Seals

Flingers with labyrinth seals

Bearings Planetary carrier 3 planetary wheels Spur gear shaft Spur gear pinion Auxiliary drive shaft Hollow shaft

1 × NCF 18/560 V; 1 × NCF 2972 V 3 × 22338 CC/W33 2 × NCF 2952 V 2 × 32328 2 × 32320 J2 1 × NU 213 ECJ




8

129


Planetary/spur, three-stage Application

Wind power station

Manufacturer

Renk AG, Augsburg, Germany

Input drive

Wind turbine, toothed coupling

Drive rating

P = 1 327 kW

Drive speed

n = 23 r/min

Total ratio

i = 57,7 : 1

Output torque

M2 = 570 000 Nm

Dimensions

1 700 × 2 800 × 3 180 mm

Mass

G = 11 600 kg

Gears

Planetary and spur gears case hardened; spur gears have double helix

Lubrication type

Circulating oil

Lubricant

Synthetic oil with viscosity to ISO VG 220


T = 46 °C (oil inlet temperature)

Sealing

Special shaft seal at input side, zinc seal at output side

Bearings Planetary carrier 6 planetary gears Planetary carrier Spur gear shaft

130

Pinion (auxiliary drive) Pinion (power take- off)

1 × 608/800 MA; 1 × NJ 18/760 MA6/343016 6 × 24136 CC/C3W33/VE096 1 × 61888 N1MA 2 × 313451 B (cylindrical roller bearing 320 × 440 × 72 mm) 1 × 6222 N1/C3; 1 × NU 2222 ECJ/C3 1 × 32228 J2/DF; 1 × NU 2228 ECMA/C3



Remarks

Elastic gearbox suspension; permissible noise level 85 dBA


8

131


Planetary/spur, superimposed

132

Application

Ship’s generator drive

Manufacturer


Input drive

Combustion engine, claw coupling

Drive rating

P = 900 kW

Drive speed

n = 297 to 425 r/min

Total ratio

i = 1 : 4,2 to 1 : 6,1 (variable)

Power take-off

Claw coupling

Output torque

M2 = 4 775 Nm

Dimensions

1 800 × 1 300 × 2 100 mm

Mass

G = 6 300 kg

Gears

Spur, sun and planetary gears case hardened and ground, internally geared ring heat treated

Lubrication type

Circulating oil

Lubricant

Oil with viscosity to ISO VG 100 or SAE 30


T = 70 °C (oil sump)

Sealing

Zinc rings at input and output sides

Bearings Coupling Planetary carrier Sun wheel Geared ring 3 planetary gears 2 spur gear intermediate shafts 2 spur pinion shafts

4 × NJ 2219 ECMA/C3 4 × NJ 2218 ECMA/C3



Remarks

A constant output speed and thus a constant frequency for the generator are aimed at although the input speed varies. The power is split after the lamellar coupling (one part in the planetary gear set, one part in the hydraulic pump and motor); power rejoined via internally geared ring.

2 × 6032 M/C3 1 × 6234 M/C3; 1 × 61938 MA/C3 1 × 6224 MA/C3 2 × 6044 M/C3 6 × NJ 2313 ECMA/C3


8

133


Spur gear, two-stage

134

Application

Geared motor for industry

Manufacturer

SEW-Eurodrive, Bruchsal, Germany

Input drive

Electric motor (asynchronous, DC), pulley, turbo coupling

Rating

P = 0,75 to 37 kW

Speed

n = 3 000 to 750 r/min

Total ratio

i = 20,78 : 1 to 201,78 : 1

Power take-off

Coupling, sprocket wheel, gear

Output torque

M2 max = 4 000 Nm

Dimensions

782 × 437 × 400 mm

Mass

G = 173 kg

Gears


Lubrication type

Oil bath

Lubricant

Oil with viscosity to ISO VG 46 to ISO VG 200


Tmax = 90 °C

Seals

Radial shaft seals

Bearings No. 1 shaft No. 2 shaft

1 × 30307 J2; 1 × NUP 2308 ECJ; 1× 30308 J2 1 × NUP 213 ECJ; 1 × 6315-Z


L10h = 5 000 operating hours (for M2 max)


8

135


Spur gear, three-stage

136

Application


Manufacturer

Flender-Himmelwerk, Tübingen, Germany

Input drive

Electric motor (asynchronous), may be DC; elastic coupling, slip clutch or “Anlaufkupplung”

Rating

P = 3 to 90 kW

Speed

n = 750 to 1 500 r/min

Total ratio

i = 1:18,27 to 1:113,61

Power take-off

e.g. elastic coupling

Output torque

M2 = 9 000 Nm

Dimensions

612 × 702 × 530 mm

Mass

G = approx. 450 kg

Gears


Lubrication type

Oil bath

Lubricant



Tmax = 90 °C

Seals

Radial shaft seals with dust lip


1 × NU 212 ECJ; 1 × 6212; 1 × NU 312 ECJ 1 × 22208 E; 1 × 22309 CC 1 × 22312 E; 1 × 21312 E 1 × NJ 2217 ECJ; 1 × 22220 E




8

137


Bevel/spur gear, three-stage

138

Application


Manufacturer

SEW-Eurodrive, Bruchsal, Germany

Input drive

Electric motor (asynchronous, DC), coupling, sprocket wheel belt pulley

Rating

P = 1,5 to 45 kW

Speed

n = 3 000 to 750 r/min

Total ratio

i = 11,71 : 1 to 130,16 : 1

Power take-off

Hollow shaft, coupling, sprocket wheel, gear

Output torque

M2 = 6 000 Nm

Dimensions

781 × 557 × 517 mm

Mass

G = 285 kg

Gears

Spur: helical cut, case hardened and ground Bevel: curved teeth and case hardened

Lubrication type

Oil bath

Lubricant

Oil with viscosity to ISO VG 46 to ISO VG 220


Tmax = 90 °C

Seals



Electric motor bearings 1 × 30310 J2; 1 × 30311 J2 2 × 32310 J2 2 × 6224


L10h = 5 000 operating hours (for M2 max)


8

139


Bevel/spur, two-stage Application

Main and auxiliary drive of the travelling gear of a portal crane for container handling

Manufacturer

Bonfiglioli Riduttori, Bologna, Italy

Input drive

Electic motor

Drive rating

P = 25 kW (main drive) P = 4 kW (auxiliary drive)

Drive speed

n = 1 750 r/min (main drive) n = 1 450 r/min (auxiliary drive)

Total reduction

i = 19,5 : 1 (main drive) i = 39,6 : 1 (auxiliary drive)

Output torque

M2 = 12 000 Nm (main drive) M2 = 2 400 Nm (auxiliary drive)

Dimensions

835 × 1 115 × 560 mm

Mass

G = 380 kg (main drive) G = 100 kg (auxiliary drive)

Gears

20 Mn Cr 5, hardened

Lubrication type

Circulating oil (main drive) Oil bath (auxiliary drive)

Lubricant


Sealing

Radial shaft seals


Remarks

140

2 × 31312 (main drive) 2 × 32014 X (auxiliary drive) 1 × 30313; 1 × 30314 (main drive) 1 × 32208; 1 × 30307 (auxiliary drive) 2 × NNC 4832 V (main drive) 2 × NJ 215 EC (auxiliary drive) Forced circulating oil lubrication is needed for the bearings on the vertical shaft. The auxiliary drive is coupled in by hand as required. Each of the 16 runner wheels is driven by a geared motor. The torques are taken up by the frame via torque supports.


8

141


Spur/planetary gear, three-stage

142

Application

Swivelling drive for floating crane

Manufacturer

Lohmann & Stolterfoht, Witten, Germany

Drive

Electric motor (DC), elastic coupling

Rating

P = 335 kW

Speed

n = 500 r/min

Total ratio

i = 1 : 73,8

Power take-off

Pinion

Output torque

M2 = 472 689 Nm

Dimensions

1 500 ∅ × 4 132 mm

Mass

G = 10 152 kg

Gears

All gears straight-cut; spur, sun and planetary wheels case hardened and ground; hollow wheels heat treated

Lubrication

Oil bath


Tmax = 70 °C

Seals

Radial shaft seals on input and output shafts; gaptype seal with grease fill for bearing at pinion side of output shaft

Bearings No. 1 shaft No. 2 shaft 3 planetary wheels Planetary carrier 3 planetary wheels Sun wheel Pinion

1 × NJ 226 ECJ; 1 × 22218 CC/W33 2 × NJ 228 ECJ 3 × 22320 CC/W33 1 × NCF 1884 V; 1 × NCF 1892 V 6 × NJ 2320 ECMA 1 × 61836 MA 1 × 24076 CC/W33




8

143


Planetary, three-stage, vertical

144

Application

Drive for slewing mechanism, e.g. for floating crane or bucket excavator

Manufacturer

Dorstener Maschinenfabrik AG, Dorsten, Germany

Input drive

Electric motor, elastic coupling

Drive rating

P = 50 kW

Drive speed

n = 1 400 r/min

Total ratio

i = 1 : 103

Power take-off

Pinion for slewing ring

Output torque

M2 = 35 274 Nm

Dimensions

640 ∅ × 1 750 mm

Mass

G = 1 250 kg

Gears

Sun and planetary gears case hardened; internally geared rings hardened; straight cut teeth

Lubrication type

Oil bath; bearings on input and output shafts grease lubricated

Lubricant

Oil with viscosity to ISO VG 220; rolling bearing grease


T = 78 °C (oil bath)

Sealing


Bearings No. 1 shaft (input) 3 planetary gears 3 planetary gears 3 planetary gears No. 2 shaft (output)

2 × 6215/C3 1st stage: 3 × 22207 CC 2nd stage: 3 × 22210 E 3rd stage: 3 × NJ 2213 ECJ 1 × NU 1034 MA; 1 × 23038 CC/W33




8

145


Bevel/spur, two-stage

146

Application

Conveyor belt drive for tunnelling

Manufacturer

Voith, St. Pölten, Austria

Input drive

Electric motor (asynchronous), turbo coupling

Drive rating

P = 55 kW

Drive speed

n = 1 440 r/min

Total ratio

i = 1 : 18,57

Power take-off

Hollow shaft with shrunk-on washer connection

Output torque

M2 = 6 775 Nm

Dimensions

530 × 475 × 990 mm

Mass

G = 490 kg

Gears

Bevel gears Klingelnberg-Cyclo-Palloid; Spur gears helical cut, case hardened, ground

Lubrication type

Oil bath

Lubricant


Sealing



1 × 31316 J1/DF; 1 × NJ 2316 ECM/C3 2 × NJ 2314 ECMA/C3; 1 × QJ 312 N2MA/C3 2 × NCF 2932 V


8

147


Bevel, two-stage

148

Application

Conveyor belt drive

Manufacturer

Brook Hansen, Edegem, Belgium

Input drive

Electric motor

Drive rating

P = 132 kW

Drive speed

n = 1 420 r/min

Total ratio

i = 16 : 1

Output drive

On hollow shaft, shrunk-on washer connection

Output torque

M2 = 16 000 Nm

Dimensions

645 × 450 × 1 130 mm

Mass

G = 500 kg

Gears

Case hardened and ground

Lubrication type

Oil bath

Lubricant

Mineral oil with EP additives

Sealing

Double-action labyrinth seal at input side Radial shaft seals with dust lip at output side

Bearings Shaft No. 1 Shaft No. 2 Shaft No. 3

2 × 31314; 1 × 22315 E 2 × 22315 E; 1 × 81210 2 × NCF 2934 V


L10h = 25 000 hours


8

149


Planetary, two-stage

150

Application

Chain scraper conveyor for underground mine

Manufacturer

Gebr. Eickhoff, Bochum, Germany

Input drive

Electric motor via fluid coupling or elastic coupling with motor where poles can be switched

Drive rating

P = 450 kW

Drive speed

n = 1 450 r/min

Total ratio

i = 1 : 28

Output drive

Toothed coupling or flanged gearbox

Output torque

M2 = 100 000 Nm (briefly 250 000 Nm)

Dimensions

816 × 1 250 × 1 155 mm

Mass

G = 1 870 kg

Gears

Sun and planetary wheels case hardened, hollow wheels of nitrided hardenable steel

Lubrication type

Oil bath

Lubricant

Mineral oil (anti-wear + EP) with viscosity to ISO VG 320



Sealing

Radial shaft seal + dust seal at input side, mechanical seal at output side

Bearings No. 1 shaft 3 planetary gears 3 planetary gears No. 2 shaft

2 × 6222/C3 6 × NJ 2311 ECMA 3 × RN 315 ECP/QR 2 × NJ 2868 ECMA/VE900



Remarks

Robust casing ideal for mining applications; power take-off shaft must briefly take up very large forces from the conveyors


8

151


Bevel/spur/planetary, three-stage

152

Application

Chain scraper conveyor for underground mine

Manufacturer

Gebr. Eickhoff, Bochum, Germany

Input drive

Electric motor via fluid coupling, or elastic coupling for switching pole motor

Drive rating

P = 450 kW

Drive speed

n = 1 450 r/min

Total ratio

i = 1 : 28

Power take-off

Toothed coupling, or flanged gearbox

Output torque

M2 = 100 000 Nm (briefly 250 000 Nm)

Dimensions

816 × 1 655 × 990 mm

Mass

G = 2 980 kg

Gears

Bevel, spur, sun and planetary gears case hardened; ring with internal gear hardened and nitrided

Lubrication type

Oil bath

Lubricant

Mineral oil (EP) with viscosity to ISO VG 320



Sealing

Radial shaft seal + dust seal on input shaft; mechanical seal on output shaft

Bearings No. 1 shaft No. 2 shaft No. 3 shaft 3 planetary gears No. 4 shaft

1 × 31322 XJ2/DF; 1 × 22324 CC/W33 1 × 22320 E; 1 × 22326 CC/W33 2 × 32034 X 3 × RN 315 ECP/QR 2 × NJ 2868 ECMA/VE900



Remarks

Robust casing for mining conditions; output shaft with bearing arrangement must be able to accommodate very high forces from the conveyor for brief periods


8

153


Bevel/spur/planetary, three-stage

154

Application

Ski lifts (seat and gondola types)

Manufacturer

L. Kissling, Zurich-Seebach, Switzerland

Input drive

Electric motor (asynchronous or DC), elastic coupling

Drive rating

P = 300 kW

Drive speed

n = 1 500 or 1 800 r/min

Total ratio

i = 93,75 : 1 (or from 48,31 : 1 to 132,92 : 1)

Output drive

Flanged-on rope sheave

Output torque

M2 = 170 000 Nm; rope tension: s = 450 000 N

Dimensions

530 × 730 × 1 333 mm + 905 × 1 250 mm ∅

Mass

G = 3 800 kg

Gears

Bevel, spur and planetary wheels case hardened, hollow planetary wheel hardened

Lubrication type

Oil bath and circulating oil

Lubricant

EP oil with viscosity to ISO VG 220 or ISO VG 150



Sealing

Radial shaft seal + Z sealing washer at input side and pairs of radial shaft seals + dust cover at output side

Bearings No. 1 shaft No. 2 shaft No. 3 shaft 1 sun pinion 3 planetary gears Rope sheave

1 × 31315 J2/DF, 1 × 22317 E 2 × 23220 CC/W33 2 × 23122 CC/W33 1 × 89310 6 × NCF 2222 V 1 × 24048 CC/W33; 1 × 23048 CC/W33



Remarks

Under-floor drive can be decoupled


8

155


Planetary/bevel plate with adjoining reduction gear

156

Application

Drive for pumps in extraction plant

Manufacturer

Motovario, Modena, Italy

Input drive

Electric motor

Drive rating

P = 9,2 kW

Drive speed

n = 1 750 r/min

Total reduction

i = 3,5 : 1

Output torque

M2 = 500 Nm

Mass

G = 145 kg

Gears

100 Cr 6, hardened and heat treated

Lubrication type

Oil bath

Lubricant


Sealing

Radial shaft seals


1 × 6213; 1 × 6309 1 × 6213; 1 × NJ 210 EC 2 × 32206 1 × 30210; 1 × 30213



Remarks

Gearbox is designed for maximum reliability under difficult operating conditions


8

157


Spur, split power, three-stage

158

Application

Central drive for tube mill (cement)

Manufacturer

A. Friedr. Flender, Bocholt, Germany

Input drive

Electric motor (asynchronous), elastic coupling

Drive rating

P = 3 600 kW

Drive speed

n = 880 r/min

Total ratio

i = 1 : 62,8

Output drive

Toothed coupling

Output torque

M2 = 2 350 kNm; at start-up 5 885 kNm

Dimensions

3 380 × 4 000 × 3 780 mm

Mass

G = 79 250 kg

Gears

1st stage: helical 2nd stage: straight cut 3rd stage: double helix All gears case hardened

Lubrication type

Circulating oil

Lubricant



Tmax = 65 °C (oil sump)

Sealing

Lamellar rings at input and output sides

Bearings Shaft No. 1 Shaft No. 1 (auxiliary drive) Shaft No. 2 Shaft No. 3 (3×) Shaft No. 4

2 × NU 2248 MA/C3; 1 × QJ 248 N2MA/C3 2 × 6248 M/C3 2 × NCF 2976 V 3 × NU 3068 MA/VE900; 6 × NU 3084 MA 1 × 60/560 MA/C3; 1 × N 28/710 ECMB



Remarks

The equal power split is achieved by a radially free pinion and gears adjusted by oil injection method


8

159


Bevel/spur gear, three-stage Application

Drive of a coal grinding mill

Manufacturer

David Brown, Huddersfield, Great Britain

Input drive


Rating

P = 420 kW

Speed

n = 990 r/min

Total ratio

i = 1 : 24,5

Power take-off

Grinding plate of mill

Output torque

M2 = 99 340 Nm

Dimensions

1 600 × 2 920 × 2 000 mm

Mass

G = 25 600 kg

Gears

Bevel: spiral cut in hard state Spur: helical cut, ground, all case hardened

Lubrication type

Circulating oil

Lubricant



Tmax = 80 °C

Seals

Double radial shaft seals with additional flingers on input shaft; labyrinth with additional special rubbing seal on output shaft


160

1 × 32324 J2; 1 × 32220 J2 1 × 32036 X/DF; 1 × 23036 CC/W33 1 × 32036 X/DF; 1 × 23036 CC/W33 1 × 230/560 CA/W33; 1 × 294/630 EM; 1 × 230/500 CA/W33



Remarks

Forces from the grinding chamber are taken up by the bearings on the output shaft


8

161


Bevel/planetary, two-stage Application

Raw meal mill (cement industry)

Manufacturer


Input drive

Electric motor (squirrel cage), elastic coupling

Drive rating

P = 2 600 kW

Drive speed

n = 1 180 r/min

Total ratio

i = 1 : 41,9

Output drive

Grinding receptacle

Output torque

M2 = 882 838 Nm

Dimensions

2 670 × 3 050 × 3 050 mm

Mass

G = 68 600 kg

Gears

Bevel, sun and planetary gears case hardened and ground, internally geared ring pounded and hardened

Lubrication type

Circulating oil

Lubricant

Oil with ciscosity to ISO VG 220


T = 62 °C

Sealing

Labyrinths at input and output sides

Bearings Bevel pinion shaft

162

Bevel wheel 3 planetary gears

1 × BT2B 332931 (240 × 480 × 220 mm) 1 × NU 2252 MA/C3 1 × 32064 X/DF; 1 × NU 1060 MA/C3 3 × 23164 CC/C3W33



Remarks

Temperature, pressure and oil flow rate monitored; shock pulse measurements


8

163


Planetary, three-stage Application

Locomotion drive for construction machines

Manufacturer

Orenstein & Koppel, Hattingen, Germany

Input drive

Flanged-on hydraulic motor, plug-type connection

Drive speed

n = 4 000 r/min (adjustable)

Total reduction

i = 80 : 1 to 200 : 1

Output

Sprocket wheel or flanged-on rim

Output torque

M2 = 44 000 Nm

Dimensions

435 × 435 × 383 mm

Mass

G = 210 kg

Gears

Sun and planetary wheels case hardened and ground; hollow wheels heat treated and nitrided

Lubrication type

Oil bath

Lubricant

Gear oil SAE 90 or engine oil SAE 15W40

Sealing

O-ring (static) at input side, mechanical seal + V-ring at output side

Bearings 1st stage

Sprocket wheel Brake

3 × BC2B 322418 B (22 × 39 × 22 mm; full complement) 3 × BC2B 322421/HB3 (35 × 52 × 26 mm; full complement) 5 × BC2B 326111/HB3 (50 × 70 × 32 mm; full complement) 2 × T4DB 170 1 × 6009


L10h = 500 operating hours at maximum torque

2nd stage 3rd stage

164


8

165


Spur/planetary, three-stage

166

Application

Drive for articulation of excavator

Manufacturer

Dorstener Maschinenfabrik AG, Dorsten, Germany

Input drive


Drive rating

P = 45 kW

Drive speed

n = 985 r/min

Total reduction

i = 159,4 : 1

Output drive

Hollow shaft with shrunk-on washer, cartridge-type gearbox

Output torque

M2 = 70 000 Nm

Dimensions

800 ∅ × 1 130 mm

Mass

G = 1 800 kg

Gears

Spur and planetary gears case hardened Internally geared rings heat treated

Lubrication type

Oil bath

Lubricant



T ≈ 90 °C (oil bath)

Sealing


Bearings No. 1 shaft No. 2 shaft 3 planetary wheels 3 planetary wheels No. 3 shaft

2 × 6215 2 × 6024 3 × 22311 E 3 × 22315 E 1 × NCF 1852 V; 1 × NCF 1856 V




8

167


Spur, four-stage, vertical

168

Application

Drive for mixer for chemical industry

Manufacturer

Jahnel Kestermann, Bochum, Germany

Input drive

Electric motor (asynchronous or DC)

Drive rating

P = 75 (or 55) kW

Drive speed

n = 1 500 (or 1 000) r/min

Total ratio

i = 1 : 206,6

Power take-off

Flanged coupling

Output torque

M2 max = 112 500 Nm

Dimensions

1 320 × 1 000 × 1 720 mm

Mass

G = 4 700 kg

Gears


Lubrication type

Oil bath and circulating oil

Lubricant



T = 70 °C

Sealing

Radial shaft seal at input side Oil cover and V-ring on output shaft

Bearings No. 1 shaft No. 2 shaft No. 3 shaft No. 4 shaft No. 5 shaft Mixer shaft

2 × 33215 2 × 32314 1 × 30218; 1 × 32318 2 × 32322 2 × NCF 1872 V 2 × 32038 X; 1 × 23060 CCK/W33 + OH 3060 H



Remarks

Permissible noise level 75 dBA


8

169


Spur, four-stage, vertical

170

Application

Surface ventilator

Manufacturer

Brook Hansen, Edegem, Belgium

Input drive

Electric motor

Drive rating

P = 75 kW

Drive speed

n = 1 475 r/min

Total ratio

i = 1 : 40

Output torque

M2 = 35 000 Nm

Dimensions

760 × 925 × 1 075 mm

Mass

G = 860 kg

Gears


Lubrication type

Circulating oil; bearing at output side of output shaft grease lubricated

Lubricant

Mineral oil with EP additives

Sealing

Double action labyrinth at input side; rising pipe + radial shaft seal with dust lip at output side


2 × T2ED 050 2 × 32313 2 × 22317 E 1 × 22228 E; 1 × 22328 E



Remarks

External radial force 4 500 kN and external axial force 8 900 kN on the output shaft


8

171


Spur, split power

172

Application

Drive for briquetting roll press

Manufacturer

Flender ESAT, Herne, Germany

Input drive

Electric motor (asynchronous), V-belts

Drive rating

P = 630 kW

Drive speed

n = 1 358 r/min

Total ratio

i = 1 : 97,4

Power take-off

Toothed coupling

Output torque

M2 = 432 000 Nm

Dimensions

1 620 × 3 510 × 1 200 mm

Mass

G = 17 000 kg

Gears


Lubrication type

Gears: oil bath Bearings: circulating oil

Lubricant

Mineral oil with viscosity to ISO VG 320


T = 60 °C (oil sump)

Sealing


Bearings No. 1 shaft No. 2 shaft No. 3 shaft No. 4 shaft (2×) No. 5 shaft (2×)

1 × 22330 CC/W33; 1 × 22324 CC/W33 2 × 24132 CC/W33 2 × NJG 2330 VH 4 × 23238 CC/W33 2 × 23068 CC/W33; 2 × 23976 CC/W33



Remarks

Power split with independent load compensation on the axially freely adjustable double helix pinion shaft of the 3rd stage


8

173


Spur gear, single stage

174

Application

Pinion stand of hot strip finishing mill

Manufacturer

SMS – Schloemann-Siemag AG, Hilchenbach, Germany

Input drive

Electric motor (DC), toothed coupling

Rating

P = 10 000 kW

Speed

n = 0 to 36,4 or 80,24 r/min

Total ratio

i=1:1

Power take-off

Toothed coupling, rolls

Output torque

M2 = 2 × 1 310 000 Nm

Dimensions

2 660 × 5 420 × 2 630 mm

Mass

G = 49 100 kg

Gears

Double helical, case hardened

Lubrication type

Circulating oil with water cooler

Lubricant


Seals

Labyrinth seals at input and output sides

Bearings No. 1 shaft No. 2 shaft

1 × 240/600 CA/W33 and 1 × 240/500 CA/W33 1 × 24184 ECA/W33 and 1 × 240/500 CA/W33




8

175


Spur, two-stage Application

Drive for vertical edging stand of a blooming mill (hot plate mill)

Manufacturer


Input drive

2 electric motors (DC) via toothed coupling

Drive rating

P = 2 × 1 600 kW

Drive speed

n = 0 to ± 140/273 r/min

Total ratio

i = 1 : 7,51

Power take-off

2 cardan shafts

Output torque

M2 = 2 × 1 350 000 Nm

Dimensions

5 600 × 10 430 × 3 700 mm

Mass

G = 258 000 kg

Gears

Helical cut, ground; 1st stage and pinion, 2nd stage: case hardened; gear, 2nd stage: heat treated

Lubrication type

Circulating oil

Lubricant



T = 40 °C (oil supply temperature)

Sealing


Bearings No.1 shaft (2×)

Weight balancing (2×)

2 × taper roller bearing 331197 A (384,175 × 546,1 × 222,25 mm) 2 × cylindrical roller bearing BC2B 320041 (380 × 540 × 200 mm) 2 × taper roller bearing BT2B 332663/HB1 (519,112 × 736,6 × 258,762 mm) 2 × cylindrical roller bearing 316077 A (440 × 620 × 225 mm) 2 × taper roller bearing BT2B 328310/HA4 (1 562,1 × 1 806,575 × 279,4 mm) 2 × cylindrical roller bearing BC1B 322416/HA1 (1 700 × 2 060 × 160 mm) 4 × 29330 E



Remarks

The two rolls are driven via two mechanically separate, electrically synchronised motors

No. 2 shaft (2×)

No. 3 shaft (2×)

176


8

177


Spur, with shift

178

Application

Drive for a Sendzimir rolling mill

Manufacturer

ERCMD Engrenages et Réducteurs CitroenMessian-Durand, Velizy-Villacoublay, France, for DMS Seclin, France

Input drive


Drive rating

P = 6 000 kW

Drive speed

n = 0 to 350/850 r/min

Total ratio

i1 = 1 : 1; i2 = 1,595 : 1

Power take-off

4 toothed couplings

Output torque

4 × M2 = 40 925 Nm

Dimensions

2 430 × 4 190 × 4 820 mm

Mass

G = 52 000 kg

Gears

Input stage: helical cut, case hardened, ground Second stage and pinion stand: double helix

Lubrication type

Circulating oil

Lubricant



T = 45 °C (oil inlet temperature)

Seals

Felt seals with labyrinth on input shaft; radial shaft seals on output shafts

Bearings No. 1 shaft No. 2 shaft No. 3 shaft No. 4 shaft No. 5 shafts (2×) No. 6 shafts (2×)

1 × 23168 CC/C3W33; 1 × 23080 CAC/C3W33 1 × 23168 CC/C3W33; 1 × 23164 CC/C3W33 2 × NU 19/670 ECMA 2 × 23080 CAC/C3W33 4 × 23244 CC/C3W33; 2 × QJ 1044 N2MA/C4 4 × 23044 CC/C3W33; 2 × QJ 1044 N2MA/C4



Remarks

Axial forces on the output shafts 40 000 N per shaft


8

179


Spur, with shift

180

Application

Drive for aluminium foil mill (rolling mill)

Manufacturer

David Brown, Huddersfield, Gt. Britain

Input drive

Two electric motors; elastic couplings

Drive rating

P = 2 × 3 000 kW

Drive speed

n = 374 or 935 r/min

Total ratio

i1 = 1 : 1; i2 = 1 : 2,5

Power take-off

Torsionally elastic coupling

Output torque

2 × M2 max = 190 900 Nm

Dimensions

1 810 × 4 530 × 4 135 mm

Mass

G = 45 700 kg

Gears

Double helix, case hardened, ground

Lubrication type

Circulating oil

Lubricant

EP oil with viscosity to ISO VG 220


T = 70 °C

Sealing

Labyrinth with radial shaft seal on input and output shafts

Bearings No. 1 shafts (4×) No. 2 shafts (4×) No. 3 shaft No. 4 shaft No. 5 shaft No. 6 shaft

8 × 22244 CC/W33 8 × 23248 CC/W33 2 × 230/500 CA/W33 2 × 60/500 MA 2 × 24068 CC/W33 2 × 24064 CC/W33




8

181


Spur, with shift, one-stage

182

Application

Drive for reeler for hot rolled sheet

Manufacturer


Input drive


Drive rating

P = 1 100 kW

Drive speed

n = 0 to 400 or 1 200 r/min

Total ratio

i1 = 1 : 2,37; i2 = 1 : 5,19

Power take-off

Toothed coupling

Output torque

M2 = 112 000 or 236 000 Nm

Dimensions

2 075 × 2 900 × 1 620 mm

Mass

G = 17 885 kg

Gears


Lubrication type

Circulating oil

Lubricant


Sealing


Bearings Shaft No. 1 Shaft No. 2 2 shifting gears

1 × 23240 CC/C3W33; 1 × 24134 CC/C3W33 1 × 23056 CC/C3W33; 1 × NNU 4960 B/SPC3W33 4 × 239/500 CA/C3W33




8

183


Planetary

184

Application

Drive for rolls of continuous casting plant

Manufacturer

Brevini Riduttori, Reggio Emilia, Italy

Input drive

Electric or hydraulic motor

Drive rating

P = 30 kW

Drive speed

n = 1 200 r/min

Total reduction

i = 555 : 1

Output torque

M2 max = 300 000 Nm

Dimensions

970 × 1 280 mm

Mass

G = 1 850 kg

Gears

Case hardened

Lubricant

EP oil SAE 80


T = 60 °C

Sealing

Radial shaft seals

Bearings No. 1 shaft 2nd planetary stage 3rd planetary stage 4th planetary stage No. 4 shaft

1 × 16022 6 × AL-NNC 5010 CV 6 × AL-NNC 5016 CV 10 × AL-NNC 5022 CV 2 × NCF 2972 V


L10h = 100 000 hours

Remarks

Gearbox comprises modules from series units


8

185


Spur, three-stage Application

Single screw extruder

Manufacturer

Santasalo GmbH, Wuppertal, Germany

Input drive


Drive rating

P = 600 kW

Drive speed

n = 1 364 r/min

Total reduction

i = 1 : 59,3

Power take-off

Extruder screw

Output torque

M2 = 250 000 Nm

Dimensions

1 580 × 2 680 × 1 665 mm

Mass

G = 12 000 kg

Gears


Lubrication type

Circulating oil

Lubricant



T = 70 °C

Sealing



186

2 × 22328 CC/W33 2 × NJG 2330 VH 2 × NJG 2338 VH 1 × NCF 3068 V; 1 × NCF 2972 V; 1 × 29480 EM; 1 × 81164


40 000 operating hours

Remarks

Noise damping cover to reduce noise level


8

187


Spur switching gear, two-stage

188

Application

Drive for plastic extruder

Manufacturer

Zahnradwerk Köllmann, Wuppertal, Germany

Input drive


Rating

P = 43 to 49 kW

Speed

n = 1 790 r/min

Total ratio

i1 = 1 : 23,95, i2 = 1 : 17,43

Power take-off

Socket on extruder screw

Output torque

M2 = 5 600 Nm (1st gear) M2 = 4 600 Nm (2nd gear)

Dimensions

430 × 740 × 755 mm

Mass

G = 670 kg

Gears


Lubrication type

Oil bath

Lubricant



Tmax = 70 °C

Seals

Fluoro rubber radial shaft seals


1 × 22309 CC; 1 × NJ 309 ECJ 1 × 22311 E; 1 × NJ 311 ECJ; 4 × K 90×98×27 2 × 6221; 1 × 29422 E



Remarks

Noise level < 80 dBA


8

189


Spur, two-stage

190

Application

Drive for test rig

Manufacturer

Voith, St. Pölten, Austria

Input drive

Hydraulic motor

Drive rating

P = 125 kW

Drive speed

n = 465 to 1 953 r/min

Total ratio

i = 1 : 9,766

Output torque

M2 = 25 000 Nm

Dimensions

740 × 1 219 × 630 mm

Mass

G = 1 135 kg

Lubrication type

Oil bath

Lubricant


Sealing



2 × NJ 2316 ECM/C3; 1 × QJ 313 N2MA/C3 2 × NJ 2320 ECMA/C3 2 × 23230 CC/C3W33


8

191

SKF Industrial Gearbox 2

Recommend Documents