Dynamic, thermal, and vibrational analysis of ball bearings with over-skidding behavior

Abstract The term “over-skidding” indicates that the cage rotational speed ratio exceeds theoretical value as ball purely rolls on raceway. Different from skidding phenomenon occurs in low-load and high-speed bearing, over-skidding usually large-size angular contact bearings, it is still difficult to suppress under high load conditions. main forms of damage raceway by are spinning gyro slip. To further explore vibration characteristics thermal effects this phenomenon, a set tests an bearing with bore diameter 220 mm were conducted industrial-size test bench. Through experiment, influence axial load, speed, lubrication conditions occurrence determined. Based previous dynamics model, heat generation network models integrated present study predict its behavior. model was validated terms measured degree temperature rise. results showed reaches up 12% value, friction power loss ball-pocket accounts for 30% total loss. analysis signal strong correlation between behavior, thereby providing way indirectly measure over-skidding.