Dual-Flange Track Wheel 5000 lb Load Rating 3000 to 5999 lb 5 in Wheel Dia 1 3/4 in Wheel Width Steel Wheel/Tread Material Extra Hard Wheel/Tread Hardness Rating 179 BHN Wheel/Tread Hardness Roller Wheel Bearing Type Dual Flange Tread Shape For Axle Size 1 in Not Included Includes Spanner Bushing Steel Wheel Core Material Yes Non-Marking 3 1/4 in Hub Length