Rockwell Automation 1325L DC Motors, Frames C210ATZ - C440ATZ User Manual

Page 12

DC Motors

Table E
Axial Thrust Capacity

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.

Table F
Radial Load Capacity

Data for motors with roller bearings at the drive end (back end). Motors with ball bearings at the drive
end are for coupled duty only.

Frame

Units

Horizontal Mounting

Vertical Mounting

2500 RPM 1750

1150

850

2500

1750

1150

850 RPM

C210AT

lbs.

510

565

640

700

535+/-137

590+/-137

665+/-137

725+/-137

232

257

291

318

243+/-62

268+/-62

302+/-62

330+/-62

C250ATZ

lbs.

535

595

675

725

580+/-255

640+/-255

720+/-255

770+/-255

243

270

307

330

264+/-116

291+/-116

327+/-116

350+/-116

C280ATZ

lbs.

650

725

825

890

715+/-360

795+/-360

890+/-360

955+/-360

295

330

375

405

325+/-164

405+/-164

434+/-164

C320ATZ

lbs.

845

940

1065

1150

920+/-448

1020+/-448

1155+/-448

1235+/-44

384

427

484

523

418+/-204

464+/-204

525+/-204

561+/-204

C360ATZ

lbs.

1045

1160

1315

1420

1160+/-661

1280+/-661

1445+/-661

1555+/-66

475

527

598

645

527+/-300

582+/-300

657+/-300

707+/-300

C4011ATZ

lbs.

1350

1630

2000

2250

1470+/-655

1820+/-655

2210+/-655

2475+/-65

614

741

909

1023

668+/-298

827+/-298

1005+/-298

1125+/-29

MC4013ATZ

lbs.

1310

1580

1975

2200

1460+/-825

1810+/-825

2200+/-825

2460+/-82

595

718

898

1000

662+/-374

823+/-374

1000+/-374

1118+/-37

C440ATZ

lbs.

1350

1650

2000

2250

1470+/-825

1820+/-825

2210+/-825

2475+/-825

612

748

908

1021

714+/-374

828+/-374

986+/-374

1123+/-374

Frame

Capacity at End of Shaft in kg (lbs.)
2500 RPM

1750 RPM

1150 RPM

850 RPM

C210AT

488 (1075)

510 (1125)

C250ATZ

726 (1600)

794 (1750)

896 (1975)

941 (2075)

UC280ATZ

1225 (2700)

UC320ATZ

1452 (3200)

UC360ATZ

1814 (4000)

UC400ATZ

2722 (6000)

UC440ATZ

Contact Allen-Bradley for radial load applications

ATTENTION: The use of these radial load capacities
requires the accurate calculation of the radial load for the
application. Radial loads for gears, sprockets, and flywheel
are usually accurately determined but the radial loads due
to V-belt drives are subject to miscalculations because they
do not include all of the pre-tension load (belt tightening).
The calculations of the radial load for a V-belt drive must
include the pre-tension for transmitting the horsepower,
pre-tension for centrifugal force on the belts, pre-tension
for high start torques, rapid acceleration or deceleration,
pre-tension for drives with short arc-of-contact between the
V-belt and sheave, and low coefficient of friction between
belt and sheave caused by moisture, oil or dust. Failure to
observe these precautions could result in damage to or
destruction of the equipment.