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  • Name: TAR disc coupling
  • NO.: 0653
  • Release time: 2015-09-02
  • Views : 56

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Disc coupling: by definition, transmits torque from a driving to a driven bolt tangentially on a commobolt circle. Torque is transmitted between the bolts through a series of thin, stainless steel discs assembled in a pack. Misalignment is accomplished by deforming of the material between the bolts.

A disc coupling is a high performance motion control (Servo) coupling designed to be the torque transmitting element (by connecting two shafts together) while accommodating for shaft misalignment. It is designed to be flexible, while remaining torsionally strong under high torque loads. Typically, disc couplings can handle speeds up to 10,000 RPM.

There are two different styles of disc coupling:

Single Disc Style couplings are composed of two hubs (the ends of the coupling, which are typically made from aluminum, but stainless steel is used as well) and a single, flat, stainless steel disc spring

Double Disc Style coupling is also composed of two hubs, but has an additional center spacer sandwiching two disc springs. The center spacer can be made out of the same material as the hubs, but is sometimes available in insulating acetal, which makes the coupling electrically isolating.

The difference between the two styles is that single disc couplings cannot accommodate parallel misalignment due to the complex bending that would be required of the lone disc. Double disc styles allow the two discs to bend in opposite directions to better manage parallel offset. The discs are fastened to the hubs (and center spacer on double disc styles) with tight fitting pins that do not allow any play or backlash between the disc and the hubs. The discs can be bent easily and as a result, disc couplings have some of the lowest bearing loads available in a motion control coupling.

Torsionally stiff and still flexible, disc couplings are a great solution for high speed applications. The downside is that they are more delicate than the average coupling and can be damaged if misused. Special care should be taken to ensure that misalignment is within the ratings of the coupling.

Advantages of disc coupling

1.  Eliminates the need for lubrication and coupling maintenance

2.  Coupling can be inspected without disassembly

3.  Condition of disc packs can be inspected with a strobe light while the machine is running

4.  Note: It is not recommended that couplings be operated without coupling guards.

5.  Easy to assess equipment misalignment

6.  Torsionally rigid without any backlash

7.  No wearing parts

8.  Resistance to harsh environments

9.  Long life when properly sized and aligned

10. High power density (higher torque for a given outside diameter)

TAR series

  • An option for middle/high speed applications
  • Hubs in an inversion form, small additional bending moment, especially suitable for turbine-compressors sets
  • Relatively small external sizes
  • Protect turbine machines from load throw off
  • Enable disc packs to be replaced separately
  • If required,the coupling may be designed with one hub in the inversion form,and another in the normal form

Model NO

Power/Speed

(Kw/rpm)

Nominal torque

(KNm)

Peak torque

(KNm)

Max speed

(r/min)

A

(mm)

B

(mm)

C(mm)max

E(mm)

F

(mm)

L(mm)

TAR6115

0.072

0.68

2.4

32000

115

62

40

160

45

250

TAR6135

0.16

1.52

3.3

28000

135

82

55

170

60

290

TAR6152

0.22

2.1

6.1

25000

152

98

65

190

70

330

TAR6175

0.39

3.7

10.8

23000

175

105

75

210

80

370

TAR6196

0.49

4.6

12.4

21000

196

115

80

230

85

400

TAR6210

0.54

5.15

14.2

20000

210

130

90

230

95

420

TAR6231

0.86

8.21

24.1

18000

231

150

105

250

110

470

TAR6247

1.28

12.22

32

17000

247

167

115

250

120

490

TAR6272

2.16

20.62

45

16000

272

182

125

260

130

520

TAR6300

2.9

27.69

52.9

14000

300

205

140

270

145

560

TAR6330

3.46

33

78

12000

330

217

155

290

160

610

TAR6360

4.13

39.44

101

10000

360

247

170

310

175

660

TAR8212

0.86

8.21

24.1

20000

212

130

90

230

95

420

TAR8233

1.28

12.22

32

18000

233

150

105

250

110

470

TAR8248

2.16

20.62

45

17000

248

167

115

250

120

490

TAR8274

2.9

27.69

52.9

16000

274

182

125

260

130

520

TAR8302

3.46

33

78

14000

302

205

140

270

145

560

TAR8333

4.13

39.44

101

12000

333

217

150

290

160

610

TAR8363

6.6

63

140

10000

363

247

165

310

175

660

TAR8396

8.5

81.11

197

9500

396

263

175

320

180

680

TAR8425

11

105

217

9000

425

268

190

390

195

780

TAR8457

14

133.7

320

8500

457

300

205

400

210

820

TAR8493

17

162.3

355

8000

493

336

220

410

220

850

TAR8525

21

200.5

390

7500

525

344

240

450

240

930

TAR8570

26

248.3

570

7000

570

387

260

460

260

980

TAR8610

34

324.7

730

6000

610

419

285

480

290

1060

TAR0365

8.5

63

140

10000

365

247

165

310

175

660

TAR0400

11

81.11

197

9500

400

263

175

320

180

680

TAR0430

13

105

217

9000

430

268

190

390

195

780

TAR0460

16

133.7

320

8500

460

300

205

400

210

820

TAR0496

20

162.3

355

8000

496

336

220

410

220

850

TAR0537

25

238.75

548

7500

537

344

240

450

240

930

TAR0580

35

334.25

770

7000

580

387

260

460

260

980

TAR0630

42

401.1

920

6000

630

419

285

480

290

1060

Model NO.

Tightening torque

(Nm)

Mass

(Kg)

Torsional stiffness

KT(Nm/radxE+06)

Moment of inertia

(Kgm^2)

Performance data of spacer(per meter)

Angular misalignment

Parallel misalignment

Mass(Kg)

Torsional stiffness

ΔKT(Nm/radxE+06)

Moment of inertia

(Kgm^2)

Max

θmax(deg)

Angular stiffness

(Nm/radxE+03)

Max(mm)

Axial force

(N

TAR6115

45

6.2

0.15

0.009

4.7

0.00389

0.00612

0.375

110.3

2

902

TAR6135

45

11.6

0.25

0.021

6.0

0.099

0.013

0.375

119.5

2.3

1056

TAR6152

45

14.3

0.32

0.034

6.9

0.158

0.021

0.375

155.7

2.4

1368

TAR6175

85

19.5

0.42

0.076

10.4

0.289

0.035

0.375

168.2

2.6

2100

TAR6196

160

27.2

0.75

0.132

11.8

0.455

0.047

0.375

205.3

2.8

2306

TAR6210

160

34.5

1.12

0.181

13.5

0.702

0.085

0.375

213.6

3.0

3256

TAR6231

160

47.5

1.94

0.28

15.1

0.836

0.129

0.375

401.9

3.1

3654

TAR6247

160

58.3

2.35

0.41

22.6

1.536

0.172

0.375

447.2

3.3

3946

TAR6272

280

68.5

2.95

0.65

26.5

2.03

0.216

0.375

535.2

3.5

4653

TAR6300

280

82.3

4.86

1.02

39.5

2.76

0.444

0.375

592.3

3.6

5621

TAR6330

340

126.5

7.12

1.62

47.3

5.422

0.522

0.375

667.2

3.8

7624

TAR6360

540

158.2

9.85

2.43

53.2

7.032

0.755

0.375

720.3

4

9678

TAR8212

160

35.2

1.75

0.192

13.5

0.702

0.085

0.25

704.5

2

1458

TAR8233

160

48.6

2.2

0.29

15.1

0.836

0.129

0.25

1130

2.2

3542

TAR8248

160

59.3

2.85

0.43

22.6

1.536

0.172

0.25

1469

2.4

4216

TAR8274

280

70.2

3.92

0.72

26.5

2.03

0.216

0.25

1635

2.6

4568

TAR8302

280

83.2

5.42

1.13

39.5

2.76

0.444

0.25

1989

2.8

6542

TAR8333

340

127.2

8.54

1.73

46.3

5.422

0.522

0.25

2653

3.0

9326

TAR8363

540

159.5

9.93

2.68

51.2

7.032

0.755

0.25

3456

3.3

12681

TAR8396

540

202.3

11.86

3.95

56.1

8.865

0.923

0.25

7864

3.4

13653

TAR8425

800

273.5

14.76

5.68

71.5

14.65

1.101

0.25

6859

3.6

15782

TAR8457

800

316.4

18.65

6.96

87.3

16.83

1.522

0.25

6971

3.8

16524

TAR8493

800

388.5

22.47

11.53

94.6

21.32

2.11

0.25

7865

4.0

18936

TAR8525

1200

472.5

25.87

15.72

105.3

25.66

2.56

0.25

8654

4.2

19856

TAR8570

1200

583.5

34.61

23.65

136

40.37

4.03

0.25

8475

4.6

20541

TAR8610

1800

667.4

44.56

31.11

147

50.8

5.07

0.25

9246

5

21456

TAR0365

540

160.5

12.13

2.88

51.2

7.032

0.755

0.165

7756

2.8

7652

TAR0400

540

203.5

15.24

4.15

56.1

8.865

0.923

0.165

12589

3.0

9862

TAR0430

800

275.4

16.65

5.98

71.5

14.65

1.101

0.165

21870

3.2

10635

TAR0460

800

318.4

23.15

7.31

87.3

16.83

1.522

0.165

24254

3.6

14963

TAR0496

800

390.5

26.45

12.21

94.6

21.32

2.11

0.165

26587

3.8

16985

TAR0537

1200

483.5

32.13

16.24

105.3

25.66

2.56

0.165

28954

4.0

18635

TAR0580

1200

590.1

38.26

24.35

136

40.37

4.03

0.165

33000

4.6

19886

TAR0630

1800

675.4

46.82

33.33

147

50.8

5.07

0.165

34251

5.2

23687