3 Inch Rubber Casters & Wheels

Ratings on this page run from 110 to 275 lbs per caster, and the typical rating is about 200 lbs. To size a set, add the cart weight to its heaviest load and divide by one less than the number of casters. Uneven floors often leave one caster carrying very little, so that margin keeps every caster inside its rating.

About half of the casters here mount with a top plate; the rest use a stem. Threaded stems screw into a threaded insert, grip ring stems press into a socket or tube, and hollow kingpin casters take a bolt through the center. Measure the stem diameter and length of the caster you are replacing before ordering.

Durometer is tread hardness on the Shore A scale. Around 65 Shore A is soft: it cushions bumps and rolls quietly. Around 90 Shore A is firmer: it takes less effort to push under heavier loads and wears more slowly. Each listing shows its rating. A few hard rubber wheels are rated on the harder Shore D scale.

Most products on this page are rated from about -40°F to 180°F. Check the temperature range on each listing before ordering for cold storage or hot areas.

Precision ball bearings roll and swivel with the least effort, which suits carts that move all day. Plain bearings cost less and suit furniture and equipment that moves now and then. The bearing type is in each listing and in the filters.

Choose swivel, rigid, swivel with brake or rigid with brake. A common cart setup is two swivel casters with brakes and two rigid casters: it tracks straight down an aisle and stays put when parked.