Owner manual

12 DC Motors
Table E
Axial Thrust Capacity
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.
Table F
Radial Load Capacity
1
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
kg 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
kg 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
kg 295 330 375 405 325+/-164 325+/-164 405+/-164 434+/-164
C320ATZ lbs. 845 940 1065 1150 920+/-448 1020+/-448 1155+/-448 1235+/-44
kg 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
kg 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
kg 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
kg 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
kg 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) 510 (1125) 510 (1125)
C250ATZ 726 (1600) 794 (1750) 896 (1975) 941 (2075)
UC280ATZ 1225 (2700) 1225 (2700) 1225 (2700) 1225 (2700)
UC320ATZ 1452 (3200) 1452 (3200) 1452 (3200) 1452 (3200)
UC360ATZ 1814 (4000) 1814 (4000) 1814 (4000) 1814 (4000)
UC400ATZ 2722 (6000) 2722 (6000) 2722 (6000) 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.