Bearing preloadcalculator

Bearing Preload is the process of adding a sustained axial load, independent of external loads, to a ball bearing. An axial preload ensures constant contact between the ball complement and bearing races reducing or eliminating both modes of play. Spring Preload, a versatile execution of Bearing Preload, utilizes single turn wave springs to add the necessary preload forces despite dimensional variation and thermal expansion. Properly preloading a bearing can increase its life and eliminate the vibration and noise that results from specified clearance, manufacturing precision, and wear. Learn more about preloading and why it's important.