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  • Name: WG gear coupling
  • NO.: 0184
  • Release time: 2013-04-01
  • Views : 82

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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

d1d2­dZ

Bore length

L

D

D1

D2

3

D4

B

B1

F

C

C1

C2

Mass m/kg

Moment of inertia

I/kg·m2

Y

J1Z1

WG1

710

7500

1214

32

-

122

115

98

88

60

116

100

30

30

-

-

-

5.6

4.86

0.008

0.0063

161819

42

-

20

14

-

-

202224

52

-

10

4

-

-

2528

62

44

3

3

19

18

30323538

82

60

3

3

23

12

4042

112

84

3

3

29

12

WG2

1250

6700

2224

52

-

150

145

118

108

77

136

104

30

20

4

-

-

9.78

7.48

0.021

0.016

2528

62

-

10

3

-

-

30323538

82

60

3

3

23

16

40424548505556

112

84

3

3

29

16

WG3

2500

6300

2224

52

-

170

165

140

125

90

160

108

30

33

7

-

-

16.7

12.2

0.047

0.033

2528

62

-

23

3

-

-

30323538

82

60

3

3

23

16

40424548505556

112

84

3

3

29

16

6063

142

107

3

3

36

16

WG4

4500

5600

30323538

82

-

200

195

160

145

112

180

116

30

13

3

-

-

25.6

19.6

0.098

0.073

40424548505556

112

84

3

3

29

17

606365707175

142

107

3

3

36

17

80

172

132

3

3

41

17

WG5

7100

5300

30323538

82

-

225

215

180

168

128

200

126

30

23

3

-

-

35

26.1

0.175

0.126

40424548505556

112

84

3

3

29

19

606365707175

142

107

3

3

36

19

808590

172

132

3

3

41

19

WG6

10000

5000

323538

82

-

245

230

200

185

145

224

134

30

35

5

-

-

51.6

38

0.295

0.213

40424548505556

112

-

5

5

-

-

606365707175

142

107

5

5

38

20

80859095

172

132

5

5

43

20

100

212

167

5

5

48

20

WG7

14000

4500

323538

82

-

272

265

230

210

160

244

148

30

45

5

-

-

68.6

45

0.53

0.35

40424548505556

112

-

15

5

-

-

606365707175

142

107

5

5

38

20

80859095

172

132

5

5

43

20

100110

212

167

5

5

48

20

WG8

20000

4250

5556

112

-

290

272

245

225

176

272

162

30

29

5

-

-

79.5

55.8

0.71

0.46

606365707175

142

107

5

5

38

34

80859095

172

132

5

5

43

20

100110120125

212

167

5

5

48

20

WG9

25000

4000

65707175

142

107

315

305

265

245

190

280

176

30

5

5

38

38

106.5

80.5

1.05

0.77

80859095

172

132

5

5

43

28

100110120125

212

167

5

5

48

28

130140

252

202

5

5

53

28

WG10

40000

3550

75

142

-

355

340

300

280

225

330

196

30

28

5

-

-

158.8

121.8

1.87

1.54

80859095

172

132

5

5

43

38

100110120125

212

167

5

5

48

28

130140150

252

202

5

5

53

28

160

302

242

5

5

63

28

WG11

56000

3000

859095

172

-

412

385

345

325

256

360

224

40

15

8

-

-

214

167

3.66

2.77

100110120125

212

167

8

8

51

32

130140150

252

202

8

8

56

32

160170180

302

242

8

8

66

32

WG12

80000

2800

120125

212

167

440

435

375

360

288

414

250

40

8

8

51

45

302

242

6.39

4.75

130140150

252

202

8

8

56

32

160170180

302

242

8

8

66

32

190200

352

282

8

8

76

32

WG13

112000

2500

140150

252

202

490

480

425

400

320

470

272

50

8

8

56

28

390

309

10.44

7.76

160170180

302

242

8

8

66

32

190200220

352

282

8

8

76

32

WG14

160000

2300

160170180

302

242

545

540

462

440

362

530

316

50

10

10

68

32

522

423

17.46

13.52

190200220

352

282

10

10

78

32

240250260

410

330

10

10

-

10

WG15

224000

2100

160170180

302

242

580

-

488

-

400

560

-

50

10

-

68

43

677

-

24.91

-

190200220

352

282

10

-

78

32

240250260

410

330

10

-

-

10

270

470

380

10

-

-

10

WG16

280000

1900

180

302

242

650

-

560

-

440

600

-

50

12

-

70

63

939

-

43.22

-

190200220

352

282

12

-

80

32

240250260

410

330

12

-

-

12

280300

470

380

12

-

-

12

WG17

355000

1800

200220

352

282

690

-

600

-

460

650

-

50

12

-

70

48

1041

-

56.27

-

240250260

410

330

12

-

-

12

280300320

470

380

12

-

-

12

WG18

450000

1700

220

352

282

750

-

650

-

510

700

-

60

12

-

70

73

1381

-

88.17

-

240250260

410

330

12

-

-

12

280300320

470

380

12

-

-

12

340360

550

450

12

-

-

12

WG19

560000

1600

240250260

410

330

775

-

690

-

535

745

-

60

12

-

-

12

1526

-

108.8

, , -

280300320

470

380

12

-

-

12

340360380

550

450

12

-

-

12

WG20

710000

1500

260

410

330

825

-

730

-

580

785

-

60

14

-

-

14

2081

-

164.4

-

280300320

470

380

14

-

-

14

340360380

550

450

14

-

-

14

400

650

540

14

-

-

14

WG21

800000

1300

280300320

470

380

925

-

825

-

620

810

-

60

14

-

-

14

2460

-

242.7

-

340360380

550

450

14

-

-

14

400420440

650

540

14

-

-

14

WG22

900000

950

320

470

380

950

-

850

-

665

820

-

60

14

-

-

14

2775

-

297

-

340360380

550

450

14

-

-

14

400420440450460

650

540

14

-

-

14

WG23

1000000

900

360380

550

450

1030

-

900

-

710

880

-

60

14

-

-

14

3148

-

384.8

-

400420440450460480500

650

540

14

-

-

14

WG24

1250000

850

380

550

450

1060

-

925

-

730

900

-

70

16

-

-

16

3766

-

477.8

-

400420440450460480500

650

540

16

-

-

16

520

800

680

16

-

-

16

Key words : gear coupling