Steel Cast Iron Wheels: Light Medium Duty: Diameters: 3", 4", 5" Width: 1-1/4" Load Capacity: Up to 400 lbs, zerk grease fitting on the tread for 4" and 5" wheel Temperature Range: -40°F to +500°F Medium Heavy Duty: Diameters: 4", 5", 6", 8" Width: 2" Load Capacity: Up to 1250 lbs Customization Options: Bearings: roller bearing, or precision bearings. Washers: metal washers, or plastic washers Application: use for outdoor construction equipment.

V Groove Iron Wheel: Sizes: 4"x1-1/2", 4"x2", 6"x2" Colors: Black and silver Bore Size: 1-3/16" Zerk Greasing Fitting on the Tread Covered Steel Box Wheel Option: Can be easily welded to a slide gate.