| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an alternator bearing, which has a long life and high reliability. <P>SOLUTION: The alternator bearing 21 rotatably supports the rotary shaft of the alternator for an automobile with respect to a casing, the alternator comprising the casing, the rotary shaft, a stator, and a rotor. Concretely, the bearing 21 comprises: an inner race 22 serving as an internal member; an outer race 23 serving as an external member; a plurality of rolling elements 24 arranged between the inner race 22 and the outer race 23; and a cage 25 containing polyamide 9T resin having a degree of polymerization of 60 to 120 and a fiber loading material. <P>COPYRIGHT: (C)2008,JPO&INPIT |
