| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tapered roller bearing, in which stirring torque can be reduced by enhancing the discharge effect of lubricating oil to reduce the quantity of lubricating oil staying inside the bearing. <P>SOLUTION: A resin cage 5 for holding tapered rollers 4 at predetermined intervals includes: a small diameter annular part 6; a large diameter annular part 7; and a plurality of column parts 8 connecting the small diameter annular part 6 to the large diameter annular part 7 and arranged in a peripheral direction at a substantially equal interval. A circular arc part 40 in which an inclination to the rotary axis O of a column part inner peripheral surface on the small diameter side is larger than an inclination to the rotary axis O of the column part inner peripheral surface on the large diameter side, is formed on the inner peripheral surface 32a of a projecting part inner diameter part 32 that constitutes a part of the inner peripheral surfaces 8a of the columns 8. <P>COPYRIGHT: (C)2012,JPO&INPIT |
