| 摘要 |
An adjustable stacked bearing assembly has a plurality of bearing sub-assemblies interposed between thrust shoulders on a housing and a shaft extending through the housing, each bearing sub-assembly being individually adjustable or assembled in a condition in which all tolerance is eliminated. The bearings transmit thrust and radially center the shaft in the housing. The stacked bearing assembly is disclosed for use with a fluid pressure operated in-hole motor drill, the specific motor being shown as being of the helicoidal type.
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