| 摘要 |
PROBLEM TO BE SOLVED: To provide a cycle hub capable of reducing friction and wear between a sleeve and a shaft member.SOLUTION: The cycle hub comprises: a shaft member 10; a first bearing 20; a second bearing 30; a sleeve unit; a hub body unit 5; and a rotation unit 7. The first bearing 20 is fitted and comes into contact to the shaft member 10, and has an inner ring and an outer ring. The second bearing 30 is fitted and comes into contact to the shaft member 10, and the sleeve unit having an inner ring and an outer ring has two inner ring contact parts coming into contact to the inner rings of the first bearing 20 and the second bearing 30 respectively, and at least one of the inner ring contact parts is formed into a salient edge shape. The hub body unit 5 has a hub body 50 coming into contact to the outer ring of the first bearing 20 and a rotated member 60. The rotation unit 7 comes into contact to the outer ring of the second bearing 30, and has a drive member 90 for rotating the rotated member 60 by linkage with the rotated member 60 of the hub body unit 5. |
