Listing is for 1 (One) Service Caster 3-1/2" x 1-1/4" gray Polyurethane tread wheel mechanically bonded to a Polyolefin core. Wheel tread is non-marking, with ball bearing hub for a smooth rolling, quiet ride. Highly resistant to oil, grease, water, and most solvents.
300 pound capacity per wheel.
Ball Bearing with 3/8" bore for axle.
Hub Length: 1-9/16".
Durometer: 55 Shore D (+/-5).