User Manual

W-Series Motor Installation Instructions 17
Publication 1398-IN520A-EN-P — May 2001
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 4
Load Forces on Shaft
The following table represents load factors that provide a 20,000 hour L10
bearing fatigue life for W-Series motors. These load factors do not account
for possible application-specific life reduction factors that may occur, such
as bearing contamination from external sources.
Radial Load and Axial Load Force Ratings
When motor shaft has no radial load, axial load rating = 100% of radial load rating listed above.
When motor shaft has both a radial load and an axial load, axial load rating = 44% of radial load rating
listed above.
Motor 500 rpm 1000 rpm 2000 rpm 3000 rpm
kg (lbs) kg (lbs) kg (lbs) kg (lbs)
W-3016
57.2 (126) 45.8 (101) 35.8 (79) 31.3 (69)
W-4030
76.7 (169) 69 (152) 54.4 (120) 47.6 (105)
W-4050
93 (205) 74.4 (164) 58.5 (129) 51.3 (113)
W-4075
97.5 (215) 78.5 (173) 62.1 (137) 53.5 (118)
Axial load force (F)
Radial load force (FR)
Radial load force (FR) applied to center of shaft extension