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