User Manual

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)

Radial load force (FR)

Radial load force (FR) applied to shaft at 2AF/3.