| 摘要 |
A grease composition for rolling bearing containing a thiocarbamate derivative represented by the formula (1): wherein R1, R2, R3 and R4 are the same or different groups and denote a hydrocarbon group having 1 to 18 carbon atoms, and X denotes S-Cu-S, S-Ni-S, S, S-S, S-S-S-S, S-CH2-S, S-(CH2)2-S or S-(CH2)3-S, in an amount of 0.05 to 10 mass % with respect to the total amount of the composition. The present grease composition exhibits a long flaking life.
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