Patent ID: 6817773
Filing Date: 2004-11-16
Classification: B60B,F16C

Abstract:
A bicycle hub assembly comprising:a casing having two flanges extending outward from two ends thereof and a passage defined through the casing, a stepped shoulder extending inward from an inner periphery of the passage, an axle extending through the passage and a first bearing mounted to the axle and engaged with a first open end of the casing, and a base member mounted to the axle and located close to a second open end, an end of the race member contacting against the stepped shoulder, the race member having a longitudinal through hole and two grooves defined in an inner periphery of the longitudinal through hole, two sets of balls respectively engaged with the grooves and two retaining rings respectively engaged with two open ends of the base member to restrain longitudinal movement of the beads, two nuts respectively threadedly connected to the axle and positioning the two retaining rings.