Listing is for 1 (One) Service Caster 12" x 3" Polyurethane on Cast Iron caster wheel.
3500 pound capacity per wheel
Roller Bearing with 3/4" Bore
3-1/4" hub length
Mold on polyurethane tread on cast iron wheels have a hardness of 90-95 Shore (A) Durometer reading.
Wheel is green polyurethane tread on black semi-steel core.
Reliable, tough, easy rolling polyurethane tread chemically bonded to a cast iron core. Polyurethane wheels are non-marking, non-staining, and non-conductive. Also, resistant to oil, grease, water, and most solvents.