100 mm (4 inch) Rubber Contact Wheel Solid Rubber50 mm Wide (for 2″ belts)100 mm and 150 mm Wheels are considered of small diameter and dynamic balancing is unnecessary Ready to mount in no timeNo Need for a special adaptor heavy Duty bearings installed (2 x 25 mm Bearing 6205 RS) A steel sleeve is mounted and its bore is 13 mm. one M12 x 100 mm is included. But a 1/2″ Bolt can be used as well Rubber Hardness shore 70
