| 摘要 |
PROBLEM TO BE SOLVED: To fixedly position a rear axle part easily in axial direction without adjusting a clearance in the rear axle part. SOLUTION: A groove 42 is peripherally provided in the surface of a shaft 22 projected from the side surface of a bearing part 24, and a key 43 fitted into the groove 42 from the underside is disposed on a lower side support part 26. A cutout part 44 having an upper part opened to be fitted to the groove 42 of a shaft 22 is formed at the center upper part of the key 43. The key 43 is fixed to the lower side support part 26 beforehand. Also, shims used for the adjustment of the clearance are not used on both shafts 22 and 23 of the rear axle part 7, and the rear axle part 7 is axially positioned by fitting the key 43 into the groove 42 of the shaft 22 and installed on a body 2 side.
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