Why do LIN plastic linear bearings have a greater load-bearing ability than conventional ball linear bearings?While this situation seems to defy logic, it is actually the case.Structural analysis of CSB LIN plastic linear bearings and conventional ball bearings reveals that a LIN plastic linear bearing is in face-to-face contact with its shaft, while conventional ball linear bearings are in point and line contact with their shafts. This gives LIN plastic linear bearings a greater load-bearing ability than conventional ball linear bearings.
Another noteworthy aspect is that LIN plastic linear bearings can function with absolutely no lubrication, and can operate within a fluid medium. For their part, conventional ball linear bearings require the application of lubricant, and cannot be used in a fluid medium. As for noise, LIN plastic linear bearings operate smoothly, and produce little noise, while conventional ball linear bearings rapidly become noisier as their operating speed increases; this noise is chiefly generated by the collisions between balls when the bearings are operating at high speed.