Full definition
Permanent plastic deformation in the form of indentations (dents) on bearing raceways produced by impact or static loads exceeding the static capacity C0. The dents generate periodic vibration and accelerate wear. Common causes: hammer blows during installation, shock loads at start-up. ISO 76 standard defines limits. Prevented by using proper mounting tools (induction heater, sleeve) and selecting bearings with sufficient C0. Brands: SKF, NSK, Timken.