| 摘要 |
A hub is proposed for a two-wheeled vehicle comprising a hub spindle (1) and a hub sleeve (3) mounted rotatably on the hub spindle (1). The hub sleeve (3) is formed as a light metal die-casting, one (39) of the two spoke flanges (39, 41) being integrally cast to the hub sleeve, while the other, separately produced spoke flange (41) is rigidly secured to a seating surface (43, 45) cast to the die-casting. In the entire external circumferential surface of the die-casting the radial distance of the outer circumferential surface from the rotation axis, starting from an external circumference with maximum diameter, exclusively decreases or at least remains constant with increasing axial distance from the maximum external circumference. Furthermore in the entire internal circumferential surface of the die-casting the radial distance of the internal circumferential surface from the rotation axis, starting from an internal circumference with minimum diameter, exclusively increases or likewise at least remains constant with increasing axial distance from the minimum internal circumference. Such a hub sleeve body can be cast in a mold without pushers and requires no subsequent machining or cutting work. |
