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  • Name: WGC gear coupling
  • NO.: 0166
  • Release time: 2013-04-01
  • Views : 44

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A gear coupling is a mechanical device for transmitting torque between two shafts that are not collinear. It consists of a flexible joint fixed to each shaft. The two joints are connected by a third shaft, called the spindle.

Each joint consists of a 1:1 gear ratio internal/external gear pair. The tooth flanks and outer diameter of the external gear are crowned to allow for angular displacement between the two gears. Mechanically, the gears are equivalent to rotating splines with modified profiles. They are called gears because of the relatively large size of the teeth.

Gear couplings and universal joints are used in similar applications. Gear couplings have higher torque densities than universal joints designed to fit a given space while universal joints induce lower vibrations. The limit on torque density in universal joints is due to the limited cross sections of the cross and yoke. The gear teeth in a gear coupling have high backlash to allow for angular misalignment. The excess backlash can contribute to vibration.

Gear couplings are generally limited to angular misalignments, i.e., the angle of the spindle relative to the axes of the connected shafts, of 4-5°. Universal joints are capable of higher misalignments.

Advantages of Tanso gear coupling

1. Lowest price based on large scale production.

2. High and stable quality level.

3. Widely used in various mechanical and hydraulic fields.

4. Compensation for axial, radial and angular misalignment.

5. Convenient axial plugging assembly.

6. No brittlement at low temperature.

7. Good slippery and frictional properties.

8. Resistance to chemical corrosion.

9. Rich experience working with big companies in this field.

Design advantages

The Flexible Coupling method of connecting rotating shafts is a vital and necessary technique. Large massive shafting, loosely mounted in sleeve bearings and merely joined together by rigidly bolted flanges, cannot provide efficient mechanical power transmission. Especially today, as machine designers and builders demand higher speeds, higher torques, and higher misalignment capacities, the need for “flexibly connecting” this equipment becomes apparent.

A flexible coupling is necessary since it is practically impossible to achieve and maintain perfect alignment of coupled rotating shafts. During initial assembly and installation, precise alignment of the shaft axes is not only difficult to achieve but in many cases it is economically unfeasible. During operation, alignment is even more difficult to maintain. Shaft misalignment – caused by uneven bearing wear, flexure of structural members, settling of foundations, thermal expansion, shaft deflection and other factors – is an operating certainty. Because these factors are extremely difficult to control, a flexible coupling serves as an ideal answer to compensate or minimize the effects of unavoidable misalignment and end movement of coupled shafts.

 

A flexible coupling must provide three basic functions:

1. Physically couple together two rotating shafts for efficient transmission of mechanical power, transferring the torque of one shaft to the other, directly and with constant velocity.

2. Compensate for all types of misalignment between rotating, connected shafts without inducing abnormal stresses and loads on connected equipment, and without tangible loss of power.

3. Compensate for end or axial movement of the coupled shafts, preventing either shaft from exerting excessive thrust on the other and allowing each to rotate in its normal position.

   

Three types of misalignment must be effectively accommodated by a flexible coupling.

1. Parallel Offset – axes of connected shafts are parallel, but not in the same straight line.

2. Angular – axes of shafts intersect at center point of coupling, but not in the same straight line.

3. Combined Angular-Offset – axes of shafts do not intersect at point of coupling and are not parallel.

  

Product description

 

Type

Nominal torque

Tn

/N·m

Max speed [n]

/r·min-1

Bore diameter

d1d2

Bore length L

D

D1

D2

D3

D4

B

B1

F

C

C1

Mass m

/kg

Moment of inertia I

/kg·m2

 
 

Y

 

WGC1

710

7500

1214

32

122

115

98

88

60

116

100

30

30

-

30

5.8

5.1

0.0079

0.0064

 

161819

42

20

14

20

 

202224

52

10

6

14

 

2528

62

6

6

 

30323538

82

 

4042

112

 

WGC2

1250

6700

2224

52

150

145

118

108

77

136

104

30

20

7

20

10

7.9

0.022

0.017

 

2528

62

10

16

 

30323538

82

7

 

40424548505556

112

 

WGC3

2500

6300

2224

52

170

165

140

125

90

160

108

30

33

7

33

17

17.8

0.047

0.033

 

2528

62

23

23

 

30323538

82

7

20

 

40424548505556

112

 

6063

142

 

WGC4

4500

5600

30323538

82

200

195

160

145

112

180

116

30

13

7

20

26.2

20.5

0.099

0.074

 

40424548505556

112

7

 

606365707175

142

 

80

172

 

WGC5

7100

5300

30323538

82

225

215

180

168

128

200

126

30

23

8

28

36.1

27.7

0.177

0.13

 

40424548505556

112

8

 

606365707175

142

 

808590

172

 

WGC6

10000

5000

323538

82

245

230

200

185

145

224

134

30

35

10

35

53.2

39.8

0.3

0.22

 

40424548505556

112

10

28

 

606365707175

142

 

80859095

172

 

100

212

 

WGC7

14000

4500

323538

82

272

265

230

210

160

244

148

30

45

10

45

71.1

47.5

0.53

0.35

 

40424548505556

112

15

28

 

606365707175

142

10

 

80859095

172

 

100110

212

 

WGC8

20000

4250

5556

112

290

272

245

225

176

272

162

30

29

10

30

83

59.6

0.72

0.47

 

606365707175

142

10

 

80859095

172

 

100110120125

212

 

WGC9

25000

4000

65707175

142

315

305

265

245

190

280

176

30

10

10

30

110

85

1.06

0.8

 

80859095

172

 

100110125

212

 

130140

252

 

WGC10

40000

3550

75

142

355

340

300

280

225

330

196

30

28

10

30

164

128

1.77

1.56

 

80859095

172

10

 

100110120125

212

 

130140150

252

 

160

320

 

WGC11

56000

3000

859095

172

412

385

345

325

256

360

224

40

15

14

36

224

178

3.76

2.88

 

100110120125

212

14

 

130140150

252

 

160170180

302

 

WGC12

80000

2800

120125

212

440

435

375

360

288

414

250

40

14

14

36

315

255

6.55

4.93

 

130140150

252

 

160170180

302

 

190200

352

 

WGC13

112000

2500

140150

252

490

480

425

400

320

470

272

50

14

14

36

406

325

10.6

8

 

160170180

302

 

190200220

352

 

WGC14

16000

2300

160170180

302

545

540

462

440

362

530

316

50

16

16

36

542

423

17.8

13.9

 

190200220

352

 

240250260

410

 

Key words : gear coupling