Patent ID: 7517838
Filing Date: 2009-04-14
Classification: C10M,C10N

Abstract:
1. A lubricating oil for bearings comprising (a) a diester represented by General Formula (1) wherein R 1 and R 2 are the same or different, and each represents a C 6 -C 9 linear alkyl group; A represents a monoalkyl substituted linear alkylene group, and the total number of carbon atoms of the alkyl group and the linear alkylene group is 4 to 6; and (b) at least one member selected from the group consisting of phenol-based antioxidants and amine-based antioxidants, wherein the amount of the diester is 99.99 to 95 wt % of the total amount of component (a) and component (b), wherein the lubricating oil for bearings has a kinematic viscosity at 40° C. of 5-10 mm