Fluorescent grease and bearings having the same therein

Abstract

The invention provides a fluorescent grease which enables monitoring of behaviors of the grease for elucidation of the mechanism of grease lubrication, and a rolling element bearing or a condition monitoring rolling element bearing, both charged with the fluorescent grease. The fluorescent grease comprises, as its essential components, a base oil, a thickener agent, and a fluorescent substance.

Dependencies are inferred from the claim text.