Back to Casters

Gray TPR Wheels | 2.5-8 in to 600 lb

Diameter: 2-1/2 to 8 inTread: 1-1/4 and 2 inCapacity: 150 to 600 lb per wheel
Replacement wheels with a gray thermoplastic rubber tread bonded to a polyolefin core, sold without the caster rig. The 1-1/4 in wide wheels run from 150 lb at 2-1/2 in to 300 lb at 5 in. The 2 in wide wheels run from 350 lb at 4 in to 600 lb at 8 in, with a crowned option in each size. Match the diameter, width, axle size and hub length of the old wheel before ordering.

Shop by wheel type

6 types

Wheel = wheel diameter · capacity is per wheel.

Sizes and ratings

Wheel Rated load Notes
2-1/2 x 1-1/4 in 150 lb
3 x 1-1/4 in 210 lb
4 x 1-1/4 in 250 lb
5 x 1-1/4 in 300 lb
4 x 2 in 350 lb Two listings, one crowned
5 x 2 in 400 lb Two listings, one crowned
6 x 2 in 500 lb TP and TPC models, TPC crowned
8 x 2 in 600 lb Two listings, one crowned

Product fields and descriptions [S1].

How to match a replacement

  1. Diameter and width. Measure the tread, not the hub.
  2. Axle. Measure the bolt or bore the old wheel rides on.
  3. Hub length. The hub has to fill the gap between the legs of the fork. Spacers can close a small gap.
  4. Load. Check the rating per wheel against the heaviest corner of the cart.

If the axle or hub does not match, it is often simpler to replace the whole caster. See TPR casters.

Crowned or flat tread

A crowned tread is rounded across its width, so less of it touches the floor. It turns more easily under load. A flat tread spreads the load wider and wears more evenly on long straight runs.

Where gray TPR wheels are used

The product descriptions list food service, hospitals and laboratories [S1]. The gray tread is listed as non-marking, so it suits carts on finished floors. For heavier wheels see rubber wheels or polyolefin wheels.

Gray TPR wheel questions

Do these wheels come with a caster?

No. They are wheels only. Casters with the same tread are on the TPR casters page.

What is the core made of?

A polyolefin plastic core with the gray thermoplastic rubber tread bonded to it.

How much can a gray TPR wheel carry?

From 150 lb for the 2-1/2 in wheel to 600 lb for the 8 x 2 in wheel.

What should I measure to replace a wheel?

Diameter, tread width, axle size and hub length.

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.

Search