Rolling/sliding part, rolling bearing, cam follower, and method of modifiying the surface of the rolling/sliding part

摘要

The invention provides a cam follower having an outer ring which is used in a state where the cam follower comes into sliding contact or rolling contact with a mating part-The outer ring is configured such that the hardness of a surface layer portion existing between the surface and at least 3 µm below the surface is Hv 780 to 900, and the hardness of an internal surface portion existing at a depth of 10 µm or more from the surface is lower than the hardness of the surface layer portion and less than Hv 780. Such hardness can be obtained by performing soft shot blasting or flow barrel processing on a surface layer portion of a base material to be the outer ring.