| 摘要 |
A roller bearing capable of effectively improving the service life of the roller bearing is provided by performing surface treatment with coating. A cylindrical roller bearing 1 includes: an outer ring 2 having an outer ring raceway surface 2a; an inner ring 3 having an inner ring raceway surface 3a that faces the outer ring raceway surface 2a; and a plurality of cylindrical rollers 4 rollably disposed between the outer ring raceway surface 2a and the inner ring raceway surface 3a. The inner ring raceway surface 3a of the inner ring 3 is provided with a black oxidation coating 6a, and a rolling contact surface 4a of each cylindrical roller 4 is provided with a diamond-like carbon coating 6b. |
