| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lubricant composition for bearing which is reduced in the amount of evaporation under a high-temperature environment and has low viscosity in a wide temperature range. <P>SOLUTION: A lubricant for bearing (X) includes a diester (A) and a diester (B). (A) is one diester represented by general formula (1) and selected from the group consisting of diesters having a total number of carbons of 24-29, and has a total number of carbons of y. The content of (A) is 90 wt.% or more and less than 100 wt.% based on the weight of the lubricant for bearing (X). (B) is a diester having a total number of carbons of (y-1) or less, which is obtained from a diol and a monovalent fatty acid, and the content of (B) is more than 0 wt.% and 0.3 wt.% or less based on the weight of the lubricant for bearing (X). [In the formula, k and m each represent an integer of 6-8, A<SP POS="POST">1</SP>represents propylene, and n represents an integer of 2-3]. <P>COPYRIGHT: (C)2013,JPO&INPIT |
