메뉴 건너뛰기
Home > Technical Information
> Self-Aligning Linear Bushing > Load Ratings and Travel Life

Self-Aligning Linear Bushing
- Load Ratings and Travel Life

SUPERBALL's load ratings 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

Basic Dynamic load rating(C) and travel life

The travel life of a Linear Bushing is determined largely by the quality of the shaft. The Basic Dynamic load rating is maximum continuous load that can be applied to the Linear Bushing with 90% of reliability achieving after 50km operation under normal conditions. The nominal travel life can be calculated by follow equation.

Practically, other factors will affect the life as follows

From the above equations, the stroke and frequency are constant, the Travel Life can be calculated by following equation.

Facebook twitter me2day