4" x 2" Ergolastomer Wheel Swivel Caster - 1000 lbs. Capacity Four Position Swivel Lock:Standard you'll be hard-pressed to find

you'll be hard-pressed to find a job that needs a stronger wheel

and bearing type Annular Bearing

Tread: Polyurethane Elastomer Chemically Bonded To Core This caster is listed with wheel diameter 6"

What material is listed

Lincoln Control Valve - 776

4" x 2" Ergolastomer Wheel Swivel Caster - 1000 lbs. Capacity Four Position Swivel Lock:Standard you'll be hard-pressed to findProduct Overview The Ergolastomer wheel is our toughest wheel that can provide some cushion for heavy duty applications. These casters excel in harsh conditions, like rolling on asphalt. They are washable, chemical resistant, provide extreme impact strength, and will not produce flat spots. Tread: Solid Cast Polyurethane Elastomer, Non Marking This caster is listed with wheel diameter 4", tread width 2", load capacity 1000 Lbs., tread type Solid Cast