| abstract |
Provided is a roller bearing for which the size can be increased, and which has excellent corrosion resistance, and for which decreased precision of attachment, decreased holding force, and the generation of oscillation can be prevented at the bearing securing part, and which can be used for a long time in a highly corrosive environment. This roller bearing (1) is equipped with an inner ring (2), an outer ring (3), and rolling elements (4) as bearing members, and a coating having a sacrificial anode effect with respect to the base material of the bearing members is formed on at least the regions including the bearing securing surfaces (c, d), of the regions of the bearing members which are exposed to a corrosive environment, with the coating formed on the bearing securing surfaces (c, d) being a porous coating. In particular, the base material of the bearing members comprises an iron-based material, and the coating is a sprayed coating that is formed using a material that includes any of the elements zinc, aluminum, or magnesium as the spray material. |