GREASE COMPOSITION AND ROLLER BEARING

摘要

PROBLEM TO BE SOLVED: To provide a grease composition with excellent high load property and durability maintaining a sufficient lubrication property even at a high temperature exceeding 180°C, and a roller bearing with excellent durability filled-in with the grease composition. SOLUTION: The grease composition contains a specific branched alkyl side chain diphenyl ether oil as a base oil and only contains at least one kind selected from benzotriazole and its derivative as an additive for giving anti-oxidation and anti-rust performance. In the roller bearing, the grease composition is filled-in. COPYRIGHT: (C)2008,JPO&INPIT