1 Lifespan
When the linear slide rail is loaded and moved, the surface of the ball channel and the steel ball are constantly subjected to cyclic stress. Once the critical value of rolling fatigue is reached, the contact surface will begin to produce fatigue damage, and the fish scale-like flakes will peel off on part of the surface. This phenomenon is called surface peeling. The definition of life is the total running distance between the surface of the ball channel and the surface peeling of the steel ball due to material fatigue.
2 Rated life
The life of a linear slide rail is very decentralized, even if the same batch of products is used in the same state of motion, the life will be different; this is mostly due to the inherent changes in the fatigue characteristics of the material itself. Therefore, in order to define the life of a linear slide rail, the rated life is generally used as the reference; its definition is: the total running distance that can be achieved by running a batch of the same products under the same conditions and rated load one by one, 90% of which have not undergone surface peeling.
3 Calculation of lifespan
The life of the linear slide rail will vary depending on the actual load, and the service life can be calculated according to the basic dynamic rated load and working load of the selected linear slide rail.
