| 摘要 |
The hub has at least one hub component (8,9) with a radial slit and locking screws. It also has an intermediate element (7) between the shaft (A) and the component. The intermediate element is ring shaped with a radial slit, and has an inner aperture corresponding to the diameter of the shaft. The outer diameter of the intermediate element matches the aperture in the component. The hub component comprises a conical collar (8) and a cylinder (9) of smaller diameter. The pulley (1) or gear is fastened by a nut (12) on the cylinder. A conical ring (11) has semi-cylindrical apertures (14,15) for locking screws (16).
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