Patent ID: 10895313

Abstract:
Pulley assembly (111) comprising a hollow shaft (112) with an axis X, the hollow shaft (112) being suitable for being mounted on a shaft of a rotating electrical machine, the hollow shaft comprising at least one thread or tapping (132, 133) and a collar (113) extending radially outwards, wherein said hollow shaft also includes: a nut (128, 129) screwed on the hollow shaft via the thread or tapping; a spring (126) mounted about a portion of the nut; at least one ball bearing (122, 123) tightly fitted to the hollow shaft; a pulley (130), tightly fitted to said at least one bearing, about the spring, the nut and the hollow shaft. The nut (128, 129) includes a radial shoulder (131) mounted between the spring (126, 127) and the ball bearing (122, 123), the spring being held axially between the collar (113) and the radial shoulder (131).