| 摘要 |
A bicycle sealed bearing kit is used to install sealed bearing units on a bicycle having a one-piece crank. The kit includes an inner race formed of a cylindrical collar having a flange formed at one end thereof. The flange is integrally formed with the collar and extends outwardly in a plane perpendicular to the collar. The inner race has threads on the inner surface thereof for enabling the inner race to be secured to the crank. The sealed bearing unit is mounted on the collar with one thereof juxtaposed with the flange of the inner race.
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