Rockwell Automation LD-Series Brushless Servo Motor - Manual (Page 11)

LD-Series Motor Installation Instructions 11
Publication LD-IN001A-EN-P — September 2000
Motor Load Force Ratings
Motors are capable of operating with sustained maximum radial or
maximum axial shaft loads. The measurement points for maximum radial
and axial load forces are shown in the figure below.
Figure 2
Load Forces on Shaft
The following table represents load factors that provide a 20,000 hour L10
bearing fatigue life for LD-Series motors. These load factors do not
account for possible application-specific life reduction factors that may
occur, such as bearing grease contamination from external sources.
Radial Load and Axial Load Force Ratings
Motor Maximum Radial (FR)
Load Maximum Axial (F)
Load with
Radial Load Maximum Axial (F)
Load with
Zero Radial Load
kg (lb) kg (lb) kg (lb)
LD-2003 15 (33) 3.5 (7.5) 8 (17)
LD-3009 20 (44) 4.4 (9.7) 10 (22)
LD-4012 35 (77) 8.8 (19.4) 20 (44)
LD-4030 35 (77) 8.8 (19.4) 20 (44)
Axial load force (F)
AF
Radial load force (FR)
Radial load force (FR) applied to shaft at 2AF/3.