To provide a retainer made of resin which can improve bearing performance during high-speed rotation, and is suitable for improving the high-speed rotation by reducing resistance or heat generation by sliding friction between a retainer coming-out stopper and a rim bottom of the retainer.
A retainer made of resin 23, in which axial position regulation is accomplished by keeping a rim bottom 7a of a rim section 7 in contact with a retainer coming-out stopper 13 attached in an outer ring 3 or an inner ring 2 of the bearing, is characterized in that in each pillar section 8 arranged in projection on an inner side end face of the rim section 7, a through hole 25 roughly axially penetrating from each pillar section 8 to the rim bottom 7a is arranged, and in that lubricating oil is supplied to a sliding section 27 between the retainer coming-out stopper 13 and the rim bottom 7a by the through hole 25.
| JP2003329045 | HYBRID CAR DRIVE MOTOR AND ROLLER BEARING THEREFOR |
| JP2003214438 | ROLLING BEARING |
| JP7290928 | watch bearing |
RYU SUSUMU
MAEJIMA TAKESHI
Hironori Honda
Toshimitsu Ichikawa