Shaft loads - axial and radial – Rockwell Automation 1329L AC Induction Motors User Manual User Manual

Page 13

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AC Induction Motors

13

Table C
Constants for Calculating the Minimum Sheave Diameters for V-Belt Drives

Shaft Loads - Axial and Radial

These motors are suitable for limited shaft loads as shown in Tables

D

and

E

. Recommended maximum thrust loads depend on the mounting

position, either horizontal or vertical. For recommendations for loads
in excess of those shown, contact Allen-Bradley.

Table D
Axial Thrust Capacity - No Radial Load

1

Thrust capacity for vertical mounting includes a constant whose value is plus or minus depending on the direction of the thrust load. The constant is plus for thrust loads
acting upward against the force of gravity and minus for loads acting downward with gravity.

Frame

Units

“V”
Dimension

Constant

Base RPM
850

1150

1750

2500

L210

inches

3.50

A

40.6

30.0

19.77

14.63

B

7.26

5.43

3.56

2.09

millimeters

88.9

C

1384

1022

674

499

D

9.73

7.28

4.77

2.80

L250

inches

4.00

A

23.33

18.25

12.67

9.47

B

3.58

2.3

1.17

0.57

millimeters

101.6

C

795

622

432

323

D

4.80

3.08

1.57

0.76

L280

inches

4.50

A

20.28

16.17

11.2

8.32

B

2.94

1.75

0.84

0.43

millimeters

114.3

C

691

551

382

284

D

3.94

2.35

1.13

0.58

L320

inches

5.00

A

18.47

14.25

9.97

B

2.00

1.24

0.59

millimeters

127.0

C

630

486

340

D

2.68

1.66

0.79

UL360

inches

6.25

A

10.42

8.08

5.89

B

0.46

0.25

0.13

millimeters

158.8

C

355

275

201

D

0.62

0.34

0.17

UL400

inches

8.00

A

8.9

6.9

4.8

B

0.30

0.23

0.16

millimeters

203.2

C

303

235

163

D

0.40

0.31

0.21

Frame

Units

Horizontal Mounting

Vertical Mounting

2500 RPM

1750 RPM

1150 RPM

850 RPM

2500 RPM

1750 RPM

1150 RPM

850 RPM

L180

pounds

430

500

600

675

430

±60

500

±60

600

±60

675

±62

kilograms

195

227

272

306

198

±27

227

±27

272

±27

306

±27

L210

pounds

477

551

662

742

498

±61

564

±61

676

±61

756

±61

kilograms

217

251

301

338

227

±28

257

±28

308

±28

344

±28

L250

pounds

509

600

722

828

541

±86

629

±86

755

±86

865

±86

kilograms

231

272

327

376

245

±39

285

±39

342

±39

392

±39

L280

pounds

590

700

850

975

644

±122

754

±122

905

±122

1038

±122

kilograms

268

318

386

442

292

±56

342

±56

411

±56

471

±56

L320

pounds

705

835

1020

1170

770

±175

905

±175

1095

±175

1250

±175

kilograms

320

379

463

531

349

±80

411

±80

497

±80

567

±80

L360

pounds

875

1075

1350

1525

830

±293

1020

±293

1300

±293

1475

±293

kilograms

397

488

612

692

376

±133

463

±133

590

±133

669

±133

L400

pounds

1350

1630

2000

2250

1470

±352

1820

±352

2210

±352

2475

±352

kilograms

612

740

908

1021

667

±160

826

±160

1003

±160

1123

±160

L440

pounds

1300

1550

1800

2050

1365

±1085

1600

±1085

1865

±1085

2080

±1085

kilograms

590

703

816

930

619

±492

726

±492

846

±492

943

±492

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