What is a TPR caster wheel?

TPR stands for thermoplastic rubber — a synthetic rubber compound molded onto a polypropylene core. TPR wheels are lightweight, non-marking, and resist chemicals and moisture. They roll quietly on hard floors and are the most popular choice for institutional and light-duty industrial casters at CasterHQ.

Are TPR casters non-marking?

Yes. CasterHQ's gray TPR casters are specifically designed to be non-marking on tile, hardwood, polished concrete, and epoxy floors. The gray tread compound will not leave black scuff marks, making them ideal for hospitals, offices, restaurants, and retail environments.

What is the maximum weight capacity of a TPR caster?

Individual TPR casters at CasterHQ range from 130 lb to 315 lb capacity depending on wheel diameter. A set of four 5″ TPR casters supports up to 1,260 lb total. For heavier loads, consider upgrading to mold-on rubber or rubber-on-steel casters available in our rubber caster hub.

What plate sizes are available for TPR casters?

CasterHQ offers TPR plate casters in multiple top plate sizes: 2-3/8 × 3-5/8 inch (light-duty and stainless), 3-1/8 × 4-1/8 inch (standard institutional), and 4 × 4-1/2 inch (medium-duty industrial). Measure your existing bolt pattern to select the correct plate size.

Thermo Rubber Wheels | 225-900 lb

The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.

W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.