而非驱动端轴承损坏的直接原因是由于检修程序不完善使轴承在大修中安装不当所造成的，其根本原因则是轴承安装后游隙过小。
The direct cause of this bearing 'failure was its improper assembly caused by improper maintenance procedure, and the root cause was too small internal radial clearance after mounting.
驱动小齿轮轴承的端隙。
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