| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tapered roller bearing capable of reducing rotational torque of a bearing, by reducing agitating resistance of lubricating oil in the bearing. <P>SOLUTION: This tapered roller bearing 200 includes: an outer ring 11 having an outer ring raceway surface 11a on an inner peripheral surface; an inner ring 12 having an inner ring raceway surface 12a on an outer peripheral surface; a plurality of tapered rollers 13 rollably arranged between the outer ring raceway surface 11a and the inner ring raceway surface 12a; and a cage 10 for holding the plurality of tapered rollers 13 at a substantially equal interval in the circumferential direction. The cage 10 is a comb-shaped cage having a small diameter side annular ring part 15, an inner diameter side column part 17 and an outer diameter side column part 18 projected on the inner diameter side and the outer diameter side at a substantially equal interval in the circumferential direction on an end surface in the axial direction of the small diameter annular ring part 15, and the inner diameter side column part 17 is formed along a small collar part 12b and the inner ring raceway surface 12a of the inner ring 12. <P>COPYRIGHT: (C)2010,JPO&INPIT |
