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3" x 1.25" Thermoplastic Rubber Casters

Diameter: 3 inTread: 1-1/4 inCapacity: 225 lb eachPlate sizes: 2-3/8 x 3-5/8
Eight listings of the same 3 x 1-1/4 in gray thermoplastic rubber caster on a 2-3/8 x 3-5/8 in top plate: three single casters and five sets of four. Each caster is rated 225 lb, or 900 lb for a set, with an overall height of 4-3/16 in. The singles are a swivel, a rigid and a swivel with a top lock brake. The sets mix plain swivels, locking swivels and rigids for small carts, racks and dollies.

Singles and sets

Listing What you get Rated load
Single swivel 1 swivel caster 225 lb
Single rigid 1 rigid caster 225 lb
Single swivel with brake 1 swivel with top lock brake 225 lb
Set: all swivel 4 swivels 900 lb per set
Set: 2 swivel + 2 rigid 2 swivels, 2 rigids 900 lb per set
Set: 2 locking swivel + 2 rigid 2 locking swivels, 2 rigids 900 lb per set
Set: 2 locking + 2 plain swivel 2 locking swivels, 2 swivels 900 lb per set
Set: all locking swivel 4 locking swivels 900 lb per set

Product fields and descriptions [S1].

The set rating is four casters at 225 lb. If the floor is uneven, plan the load on three casters, about 675 lb [S2].

Will it fit my cart?

  • Plate: 2-3/8 x 3-5/8 in, the usual light-duty pattern. Measure your bolt holes center to center before ordering.
  • Height: 4-3/16 in from floor to the top of the plate. Match it on all four corners so the cart sits level.
  • Frame: zinc-plated steel, for indoor use [S1].

Why a 3 in gray TPR wheel

The tread is a gray thermoplastic rubber molded onto a polyolefin core and is listed as non-marking [S1]. It is a common replacement on dolly carts, small shelving and light displays where a hard wheel would chatter on tile. Over 225 lb per corner, move up to the 4 in TPR casters on the same plate, rated 300 lb.

3 in TPR caster questions

How much does a 3 in TPR caster hold?

225 lb per caster, or 900 lb for a set of four.

What is the plate size?

2-3/8 x 3-5/8 in on every caster on this page.

How tall are these casters?

The overall height is 4-3/16 in.

Which sets have brakes?

The all-locking set, the 2 locking + 2 rigid set and the 2 locking + 2 swivel set. The single swivel with brake has a top lock.

Sources

  • [S1] CasterHQ product fields (rated load, diameter, width, wheel and core material, temperature range, mount) and product descriptions for the items on this page, pulled October 20, 2026.
  • [S2] Preferred Equipment casters and wheels quick guide PDF (prefeq.com): load sizing on one less caster, wheel types and floor notes.

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