| 摘要 |
An overload clutch (A) has an axially moveable ring (52) with cavities (58) seating torque transmitting balls (100b) retained in seating cavities (100a) in a sheave mount (96), the cavities (100a) being larger than the cavities (58). The balls (100b) may be retained on the sheave mount (96) either by a cage (88) with tapered holes (100c) or by a carrier ring (168) with clearance holes (100d) and a retaining plate (170) (Fig 2). The ring (52) may be moved by fluid pressure in a cylinder (10) overcoming the reaction of springs (78). |
