| 摘要 |
A front bicycle hub is provided with a hub shaft, a hub shell and at least one shaft bearing (preferably two shaft bearings). The hub shaft has an external thread formed on the outer circumference surface at least one end and an internal thread formed on the inner circumference of the end where the external thread is formed. The hub shell is rotatably supported on the outer circumference side of the hub shaft by the shaft bearing. The shaft bearing is threaded on with external thread of the hub shaft. The internal thread is formed deeper toward the inner side in the axial direction than the shaft bearing.
|
