| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealed ball bearing used for purposes of reducing rotating torque, and capable of preventing generation of squeal between a sealing seal and a seal groove during rotation even when slide contact pressure is reduced by reduction of a sliding contact margin between the sealing seal and the seal groove in a case when the sealed ball bearing is used in a state that an outer ring and an inner ring are axially deflected. <P>SOLUTION: When the outer and inner rings are mounted in a state of being axially relatively deflected, a discriminating portion indicating the sealing seal-side where the slide contact margin is reduced, is formed on a prescribed position of the sealed ball bearing, a side ring portion of a cage is faced to the sealing seal where the slide contact margin is reduced, a grease guide passage is formed between an inner peripheral face of the side ring portion and an outer peripheral face of the inner ring, and the grease near outer peripheral faces of a ball and the inner ring is supplied to the seal portion where the slide contact margin is reduced, by the rotation of the inner ring. <P>COPYRIGHT: (C)2007,JPO&INPIT |
