Ohlandt, Greeley, Ruggiero & Perle, L.L.P.
Bicycle hub provided with a seal member for preventing entrance of dust
A hub includes a hub housing sleeved rotatably on a spindle, and a tubular end piece sleeved fixedly on the spindle. A tubular flexible seal member is disposed between the hub housing and the end piece, and includes an outer ring and an inner ring. The outer ring has a circular tubular portion with an axial inner end, and an inward flange that extends integrally, radially and inwardly from the inner end of the circular tubular portion to abut against a bottom wall of an annular groove that is formed in an end surface of the hub housing. The inner ring has a largest-diameter inner end that is formed integrally with an inner periphery of the inward flange, and a smallest-diameter outer end portion which is sleeved around and which is in tight engagement with a frictional outer surface of an insert portion of the end piece. The inner ring reduces gradually in inner diameter from the largest-diameter inner end to the smallest-diameter outer end portion. The smallest-diameter outer end portion has an inner diameter that is slightly smaller than outer diameter of the insert portion of the end piece when removed from the end piece.
Kun Teng Industry Co., Ltd.
F F
F16C F16C
additional inventional
Hubert
Chen