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Technical Information
Home > Technical Information > Self-Aligning Linear Bushing > Load Ratings and Travel Life
> Structure and Special   Feature
> Load Rating and Service   Life Linear Motion System
> Factors that affect travel   life
> Load Considertion
> Mean Effective Load at   Varying Load
> SAMICK Support Rail Unit
> SAMICK LM Shaft
> SAMICK Shaft Support
> Self-Aligning Linear   Bushing
> SAMICK LINEAR BUSHING
> GUIDE MASTER
> Referance Data
 

SUPERBALL's load rating give an influence to travel life with load direction, ball circuit orientation, and hardness of the shaft.
  Orientation of Balls
No. of Ball Row 4 Row 5 Row 6 Row
Max. Load
Equation F = 1.41×C F = 1.46×C F = 1.26 ×C
Min. Load
Equation F = C F = C F = C
The travel life of a Linear Bushing is determined larhely by the quality of the shaft. The Basic Dynamic load rating is maximum continuous load that can
Practically, other factors will affect the life as lfollows.
From the above equations, the strke equations, the stroke and frequency are constant, the Travel Life can be calcwlated by following equation.