| 摘要 |
A bicycle crank axle bearing assembly includes a pair of first and second axle support members, a pair of first and second bearings and a lock nut. The first and second axle support members include first and second mounting sections with first and second male screw parts that are configured and arranged to be non-rotatably coupled to a hanger part of a bicycle frame, and first and second bearing retaining sections in which the first and second bearings are retained to rotatably support a crank axle. The lock nut is disposed at least one of the first and second male screw parts of the first and second axle support members to retain an axial position of the at least one of the first and second support members with respect to the hanger part.
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