Heat-Resistant Iron Tread Wheel 2 000 lb Load Rating 1 000 to 2 999 lb Load Rating Range 6 in Wheel Dia 3 in Wheel Width Iron Wheel/Tread Material Extra Hard 188 BHN Precision Ball Standard Tread Shape 3/4 in For Axle Size Not Included Includes Spanner Bushing Iron Wheel Core Material No Non-Marking 3 1/2 in Hub Length