V-Groove Track Wheel 2500 lb Load Rating 1000 to 2999 lb 6 in Wheel Dia 2 3/4 in Wheel Width Iron Wheel/Tread Material Extra Hard Wheel/Tread Hardness Rating 180-220 BHN Wheel/Tread Hardness Roller Wheel Bearing Type V-Groove Tread Shape For Axle Size 1 in Not Included Includes Spanner Bushing Plastic Wheel Core Material Yes Non-Marking 3 1/4 in Hub Length