| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tapered roller bearing superior in lubricity between a large diameter end surface on the large diameter side in the axial direction of a tapered surface of a tapered roller and a guide surface for guiding the large diameter end surface without causing deterioration in an inner ring caused by the processing of the guide surface, and superior in manufactural facility and mass productivity. <P>SOLUTION: An annular projection 14 projecting outward in the radial direction more than the large diameter side end of a tapered raceway surface 12 is formed on the large diameter side in the axial direction of the tapered raceway surface 12 of the inner ring 2. An annular washer 4 relatively movable to the inner ring 2 is arranged between the projection 14 and the tapered roller 3 in the axial direction of the inner ring 2. A surface layer of the whole surface of a first end surface 21 on the tapered roller 3 side in the axial direction of the washer 4 and a surface layer of the whole surface of a second end surface 22 on the projection 14 side in the axial direction of the washer 4 are formed of an Si-DLC film. <P>COPYRIGHT: (C)2010,JPO&INPIT |
