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Product :

TATL disc coupling

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Release time
2019/01/11 11:01
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Description

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)

Model NO.

Power/Speed

(Kw/rpm)

Nominal torque

(KNm)

Max speed

(r/min)

AL/AR

(mm)

BL/BR

(mm)

CL/CR max

(mm)

S/S1

(mm)

E

(mm)

F

(mm)

L

(mm)

TATL6196

0.25

2.38

2850

250/196

165/133

110/95

3/14

160

100

360

TATL6210

0.30

2.94

2700

250/210

165/147

110/105

3/14

160

110

380

TATL6231

1.1

10.78

2600

320/231

190/168

130/120

3/14

160

125

410

TATL6247

1.29

12.6

2600

320/247

190/182

130/130

3/15

160

140

440

TATL6272

1.78

17.5

2400

400/272

240/196

170/140

3/16

175

150

475

TATL8302

2.35

23.4

2400

400/302

240/224

170/155

3/18

195

165

525

TATL8333

3.13

30.6

2200

400/333

240/238

170/170

3/21

220

180

580

TATL8363

4.7

46.1

2200

500/363

290/260

200/185

4/24

250

200

650

TATL8396

5.3

51.9

2000

500/396

290/280

200/200

4/26

270

215

700

TATL8425

6.2

60.7

1800

600/425

374/294

265/210

4/30

290

230

750

TATL8457

7.7

75.4

1800

600/457

374/322

265/230

4/30

310

240

790

TATL0496

11.8

115.6

1500

600/496

374/352

265/250

4/32

320

260

840

TATL0537

13.7

134.3

1500

600/537

374/374

265/265

4/36

350

280

910

TATL0580

18.9

185.22

1200

710/580

452/415

320/290

5/38

370

305

980

TATL0630

20.5

200.9

1200

710/630

452/452

320/320

5/40

400

330

1060

 

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