Service Caster #20 Series 1-1/2 inch expanding adapter stem swivel casters with 3-1/2 inch hard rubber wheel and Total Lock. Featuring a zinc plated finish, these casters are ideal for work tables, shop projects, and any equipment with round or square tube legs. Total lock brake system locks both swivel and wheel when engaged.
Mounting Height: 4-5/8"
Expanding Adapter Size (Inside Diameter): 1-1/2"
Wheel Size: 3-1/2" x 1-1/4"
Wheel hardness: 70-80 Shore D Durometer
285 pound capacity per caster