| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing filled with fluorine grease having excellent seizure resistance, wear resistance and corrosion resistance to improve peeling resistance of a DLC (Diamond-Like Carbon) film formed on an inner/outer ring raceway surface, etc. and suppress a reaction between fluorine and steel by the DLC film. <P>SOLUTION: The rolling bearing 1 includes an inner ring 2, an outer ring 3, a plurality of rolling elements 4 and a retainer 5 are provided. Fluorine grease 7 is filled around the rolling elements 4. Hard films 8 are deposited on the inner ring raceway surface 2a and the outer ring raceway surface 3a, etc to be curved surfaces. The hard film 8 comprises a base layer which is directly deposited on the surface and is mainly composed of Cr, a mixed layer which is deposited on the base layer and is mainly composed of WC and DLC, and a surface layer which is deposited on the mixed layer and is mainly composed of DLC. The mixed layer is constituted such that the content rate of WC is reduced continuously or stepwise, while the content rate of DLC is increased continuously or stepwise, from the base layer side to the surface layer side. <P>COPYRIGHT: (C)2012,JPO&INPIT |
