| 摘要 |
The coupling comprises a section (18) rotarily connected to the spindle (11) and a secondary ring section (24) borne on the nut (13), and radially movable by centrifugal effect. The two coupling sections (18,24) have stop surfaces (22) which lock the nut (13) against rotation in its loosening direction. An angular clearance between the stop surfaces, when the nut is fully tightened, ensures a reduced friction connection between the grinding wheel (10) and the spindle (11) before the nut (13) is locked. |
