Single-Flange Track Wheel 2500 lb Load Rating 1000 to 2999 lb 6 1/8 in Wheel Dia 1 3/4 in Wheel Width Iron Wheel/Tread Material Extra Hard Wheel/Tread Hardness Rating 188 BHN Wheel/Tread Hardness Roller Wheel Bearing Type Single Flange Tread Shape For Axle Size 1 in Not Included Includes Spanner Bushing Iron Wheel Core Material Yes Non-Marking 2 3/4 in Hub Length