Theory of Grease Lubrication of Cylindrical Rooler Bearing

Abstract

The lubrication theory on substances of rheological behaviour as grease is a recent theme. In particular, as the grease is often used for the lubrication of roller bearing, it is important to establish a theory of grease lubrication for roller bearings. In this paper, considering grease as a Bingham plastic, a theory of grease lubrication for cylindrical roller bearing has been advanced. The special core formation in grease film, the frictional resistance of roller bearing, the pressure distribution and the load capacity of grease film entrapped between roller and race of cylindrical roller bearing have been investigated.