Patent ID: 8523292

Claim:
A hub assembly for a bicycle comprising: a shaft; a hub body rotatably mounted on the shaft; a drive seat rotatably mounted on the shaft and engaging the hub body; a first bearing mounted in the hub body and located between the shaft and the hub body; a second bearing mounted in the hub body and located between the shaft and the hub body; and a bushing unit mounted on the shaft and located between the first bearing and the second bearing; wherein the bushing unit includes: a first adjusting sleeve; and a second adjusting sleeve adjustably connected with the first adjusting sleeve; wherein the first adjusting sleeve of the bushing unit has a first end provided with an outer threaded portion and a second end abutting the first bearing; wherein the second adjusting sleeve of the bushing unit has a first end provided with an inner threaded portion screwed onto the outer threaded portion of the first adjusting sleeve and a second end abutting the second bearing, wherein: the first adjusting sleeve of the bushing unit has a peripheral wall provided with a plurality of first adjusting holes; the first adjusting holes of the first adjusting sleeve are located at the second end of the first adjusting sleeve; the second adjusting sleeve of the bushing unit has a peripheral wall provided with a plurality of second adjusting holes; and the second adjusting holes of the second adjusting sleeve are located at the second end of the second adjusting sleeve.