| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wheel bearing device with a power transmission part having improved assembling efficiency and a stable fitted condition with no rattling. <P>SOLUTION: The wheel bearing device comprises a wheel bearing 1 and an outside joint member 13 detachably joined to the wheel bearing 1. A plurality of axial grooves 21 are formed in the inner periphery of an inner ring member 7 and a plurality of axial grooves 22 opposed to the axial grooves 21 are formed in the outer periphery of a stem 19 of the outside joint member 13. Besides, a sleeve 23 having protruded strips 23a for engaging with the axial grooves 21 and a plurality of axial grooves 23b formed in the inner periphery is internally fitted to the inner ring member 7. A plurality of balls 24 are pressed into a cylindrical space formed between both axial grooves so that the rotation of the outside joint member 13 is transmitted to the inner ring member 7 via the ball 24 and the sleeve 23. Thus, the press-in force of the stem 19 is greatly reduced, resulting in simplified disassembling/assembling work. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
