The Murray 1665995SM Snow Blower Friction Disc Hub supports the friction-drive system that transfers movement to the snow blower wheels. The hub holds the friction disc in the drive assembly and works with the related shaft and hardware to support proper power transfer during operation. Designed for compatible Murray snow blowers, this replacement hub can be used when the original com... https://www.wholetoolbox.com/murray-1665995sm-snow-blower-friction-disc-hub/1665995SM.html