Craftsman Wheel Axle Bearing Bushing For Murray Two Stage Snowthrowers, Replaces Part Number 581730, 581730MA Wheel Axle Flange Bearing made to meet or exceed FSP specifications. Used on Murray, Noma, Craftsman snowthrowers part number 581730 or 581730MA ID 3/4", OD 1-1/8", Height 3/4"