| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost bearing unit capable of fixing a vehicle body side component and the bearing unit mutually solidly while using the vehicle body side component as it is. SOLUTION: This bearing unit is provided with an annular static wheel 2 with a 2-meter annular fitting circumferential surface that can be fitted relative to the 20-meter component circumferential surface of the vehicle body side component (knuckle 20), and an annular rotational wheel 4 rotated along with a wheel. It is further provided with a fixing mechanism capable of fixing the static wheel in the vehicle body side component when the component circumferential surface and the fitting circumferential surface are fitted. The fixing mechanism is provided with a recessed groove G1 formed in the fitting circumferential surface, an elastic member 34 stored in the recessed groove in an elastically deformable condition toward the outside the groove, and a receiving groove 20g formed in the component circumferential surface and capable of receiving a part of the elastic member. When the fitting circumferential surface and the component circumferential surface are fitted, the part of the elastic member stored in the recessed groove enters the receiving groove by its elastic force. Thus, the vehicle body side component and the bearing unit are positioned and fixed mutually. COPYRIGHT: (C)2009,JPO&INPIT |
