| 摘要 |
In a bearing structure in a housing and around a shaft and comprising a pair of bearings, there is a pair of axially spaced inner races on the shaft, and a respective outer ring in the housing defining the outer race of each bearing. A stepped diameter bushing in the housing has a larger and a smaller diameter section. The outer ring for the first of the bearings is supported within the larger diameter section of the stepped bushing. The outer surface of the larger diameter bushing section fits in the housing for the bearing structure. The second of the bearings is contacted by the end of the smaller diameter section of the bushing. The assembled bearing and shaft unit is in the housing with the larger diameter portion of the stepped bushing bearing against the interior of the housing. An intermediate bushing may be provided around the outer ring of the second bearing at the smaller diameter section of the stepped bushing and the intermediate bushing fitting in the housing. The second bearing may be integrated with the stepped bushing by a snap arrangement between the bushing and the outer ring for the second bearing.
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