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  • Name: TAL disc coupling
  • NO.: 0651
  • Release time: 2015-09-02
  • Views : 205

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Disc coupling: by definition, transmits torque from a driving to a driven bolt tangentially on a common bolt 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)

TAL series  

  • Suitable for middle/low speed, long spacer distance applications
  • Simple structure, easy mounting and dismounting, small dimensions, light weight, high torque
  • Absorb larger misalignments, low noise, long service life, maintenance free
  • Apply to pumps, fans, rolling mill, etc.

 

 

 

                    

Fundamental dimensions:

Model NO.

Power/Speed

(Kw/rpm)

Nominal torque

(KNm)

Peak torque

(KNm)

Max speed

(r/min)

A

(mm)

B

(mm)

C max (mm)

E(mm)

F

(mm)

L(mm)

TAL6115

0.072

0.68

2.4

15000

115

74

50

110

55

220

TAL6135

0.16

1.52

3.3

12000

135

94

65

110

70

250

TAL6152

0.22

2.1

6.1

11000

152

107

75

120

80

280

TAL6175

0.39

3.7

10.8

10000

175

122

85

130

90

310

TAL6196

0.49

4.6

12.4

9000

196

133

95

160

100

360

TAL6210

0.54

5.15

14.2

7500

210

147

105

160

110

380

TAL6231

0.86

8.21

24.1

6700

231

168

120

160

125

410

TAL6247

1.28

12.22

32

6200

247

182

130

160

140

440

TAL6272

2.16

20.62

45

5500

272

196

140

175

150

475

TAL8302

3.46

33

78

4700

302

224

155

195

165

525

TAL8333

4.13

39.44

101

4350

333

238

170

220

180

580

TAL8363

6.6

63

140

4200

363

260

185

250

200

650

TAL8396

8.5

81.11

197

3900

396

280

200

270

215

700

TAL8425

11

105

217

3600

425

294

210

290

230

750

TAL8457

14

133.7

320

3450

457

322

230

310

240

790

TAL8493

17

162.3

355

3300

493

352

250

320

260

840

TAL0537

25

238.75

548

3200

537

374

265

350

280

910

TAL0580

35

334.25

770

3100

580

415

290

370

305

980

TAL0630

42

401.1

920

3000

630

452

320

400

330

1060

 
Performance parameters:
 

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)

TAL6115

45

4.5

0.412

0.0072

4.7

0.00389

0.00612

0.375

105.4

2

902

TAL6135

45

6.7

0.72

0.014

6.0

0.099

0.013

0.375

113.6

2.3

1056

TAL6152

45

10.3

1.163

0.028

6.9

0.158

0.021

0.375

148.3

2.4

1368

TAL6175

85

15.6

1.695

0.058

10.4

0.289

0.035

0.375

160.3

2.6

2100

TAL6196

160

21.3

2.563

0.08

11.8

0.455

0.047

0.375

198.6

2.8

2306

TAL6210

160

31.2

2.988

0.19

13.5

0.702

0.085

0.375

203.5

3.0

3256

TAL6231

160

32.2

3.596

0.24

15.1

0.836

0.129

0.375

382.8

3.1

3654

TAL6247

160

42.8

6.420

0.32

22.6

1.536

0.172

0.375

425.8

3.3

3946

TAL6272

280

55.6

6.852

0.5

26.5

2.03

0.216

0.375

510.4

3.5

4653

TAL8302

280

68.2

12.856

0.72

39.5

2.76

0.444

0.25

1989

2.8

6542

TAL8333

340

104.3

17.63

1.51

46.3

5.422

0.522

0.25

2653

3.0

9326

TAL8363

540

135.2

23.956

2.2

51.2

7.032

0.755

0.25

3456

3.3

12681

TAL8396

540

175.2

32.85

3.3

56.1

8.865

0.923

0.25

7864

3.4

13653

TAL8425

800

220.1

43.963

5.2

71.5

14.65

1.101

0.25

6859

3.6

15782

TAL8457

800

278.2

55.63

7.9

87.3

16.83

1.522

0.25

6971

3.8

16524

TAL8493

800

320.2

62.356

9.6

94.6

21.32

2.11

0.25

7865

4.0

18936

TAL0537

1200

422.3

100.54

17.1

105.3

25.66

2.56

0.165

37698

4.0

18635

TAL0580

1200

582.2

133.45

26.5

136

40.37

4.03

0.165

45632

4.6

19886

TAL0630

1800

640.2

150.78

32.6

147

50.8

5.07

0.165

48265

5.2

23687