LUBRICANT COMPOSITION AND BEARING

摘要

PROBLEM TO BE SOLVED: To provide a bearing having excellent acoustic characteristics, hardly causing fretting wear. SOLUTION: This lubricant composition is obtained by formulating a urea compound as a thickener with a synthetic hydrocarbon oil-containing non-ester oil as a base oil. The urea compound is represented by formula (I): R1-(NHCONH-R2)n (R1 is an aromatic hydrocarbon-containing group; R2 is at least one hydrocarbon group selected from a 6-12C alicyclic hydrocarbon group and a 6-20C aliphatic hydrocarbon group; n is 2-3). The synthetic hydrocarbon oil has >=20 mm2/s and <80 mm2/s kinematic viscosity at 40 deg.C and the amount of the synthetic hydrocarbon oil contained is at least >=50 wt.% based on the whole base oil.