Patent ID: 7758253
Filing Date: 2010-07-20
Classification: F16C

Abstract:
1. A thrust roller bearing comprising: a plurality of cylindrical rollers each having a rolling surface on its side surface; and a cage formed of a disk-shaped member having a hole formed in the center and comprising a plurality of pockets penetrating in a thickness direction for housing the rollers, wherein said pocket has a plurality of stopper parts for preventing said roller from escaping from said pocket, at a wall surface opposed to the rolling surface of said roller, and a plurality of guide parts for guiding the rolling surface of said roller, between said adjacent stopper parts, and when it is assumed that the distance between the outer wall surface of said pocket in the diameter direction and the guide part located on the outer side in the diameter direction of said plurality of guide parts is L the distance between the inner wall surface of said pocket in the diameter direction and the guide part located inner side in the diameter direction of said plurality of guide parts is L