| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prolong the service life of a bearing for a drive wheel by preventing ingress of foreign matters in the bearing. <P>SOLUTION: A bearing for a drive wheel comprises: an outer member 1 having double raceway surfaces 1a on an inner circumference; a hub wheel 2 having a raceway surface 2a facing on one raceway surface 1a of the outer member 1 and a wheel fitting flange 2b; an outside joint member 3b of a constant velocity universal joint 3 having a raceway surface 3a facing the other raceway surface 1a of the outer member 1 on the outer circumferential surface thereof; and double rolling elements 4 interposed between the raceway surface 1a of the outer member 1, the hub wheel 2, and the raceway surface 3a of the outside joint member 3b. Foreign matters intrusion preventive means 11, 12, 13, 14 and 15 are provided on the outer circumferential side of a butted part of the hub wheel and the equal velocity universal joint. <P>COPYRIGHT: (C)2004,JPO</p> |
