In addition to our broad range of stainless steel (440C) precision miniature &
instrument ball bearings in standard inch sizes as well as a select series of metric
ball bearing sizes, PACAMOR KUBAR BEARINGS has specialty options not presented in any of our catalogs.
The Fatigue Life (synonymous with L10 and Rating Life) of the bearings is the number of hours or
revolutions reached by 90% of a group of bearings subjected to the same loads before the onset of fatigue.
Operational conditions such as temperature, loads, speed, torque, and environment will determine the
appropriate lube for the application. Oils are used where low bearing friction torque is a primary