Rockwell Automation 8720SM High Performance AC Induction Motors - Manual (Page 25)

Publication 8720SM-IN001A-EN-P — February 2003
8720SM High Performance AC Induction Motors 25
Motor Load Force Ratings Motors are capable of operating with a sustained shaft load. The radial
and axial load force locations are shown in Figure 11, and the
maximum figures are in the tables.
Figure 11
Load Forces on Motor Shaft
The tables represent 10,000 hour L10 bearing fatigue life at various
loads and speeds. The 10,000 hour life does not account for possible
application specific life reduction that may occur due to bearing
grease contamination from external sources.
Radial Load Force Ratings (Zero Axial Load)
Axial load force
Radial load force applied at center of shaft extension
Motor Series
8720SM- 500 RPM
kg (lb) 1000 RPM
kg (lb) 1500 RPM
kg (lb) 2000 RPM
kg (lb) 3000 RPM
kg (lb)
005 284 (625) 261 (575) 223 (490) 205 (450) 177 (390)
007 284 (625) 261 (575) 223 (490) 205 (450) 177 (390)
011 284 (625) 261 (575) 223 (490) 205 (450) 177 (390)
015 386 (850) 302 (665) 261 (575) 237 (520) 205 (450)
018 386 (850) 302 (665) 261 (575) 237 (520) 205 (450)
022 386 (850) 302 (665) 261 (575) 237 (520) 205 (450)
030 606 (1335) 477 (1050) 411 (905) 370 (815) 320 (705)
037 606 (1335) 477 (1050) 411 (905) 370 (815) 320 (705)
045 640 (1410) 497 (1095) 429 (945) 350 (770) 230 (505)
055 640 (1410) 497 (1095) 429 (945) 350 (770) 230 (505)
063 640 (1410) 497 (1095) 429 (945) 350 (770) 230 (505)
075 699 (1540) 540 (1190) 443 (975) 338 (745) 205 (450)
093 699 (1540) 540 (1190) 443 (975) 338 (745) 205 (450)