High Temperature Polymer Wheels

Most high-temperature polymer wheels in our catalog are rated for continuous use between 350 and 500 degrees Fahrenheit. Exact ratings depend on the specific polymer blend. Always verify the rated temperature for your specific wheel before use in a critical thermal application.

No. Resistance to flat-spotting at elevated temperatures is a primary design feature of these wheels. Unlike nylon, phenolic, or standard polymer wheels, high-temperature formulations maintain dimensional stability even when parked under load inside ovens for extended periods.

Standard grease-packed bearings typically fail above 250 degrees Fahrenheit. For applications above that threshold, use high-temperature bearings with synthetic lubricants rated for your temperature range, or use sintered bronze bushings that can operate dry at high temperatures. Stainless steel bearings are also available for corrosion resistance in addition to heat tolerance.

Most high-temperature polymers offer good resistance to oils, greases, and many cleaning chemicals. However, chemical resistance varies by formulation. If your application involves both extreme heat and specific chemical exposure, contact our team to verify compatibility with the exact compounds present.

The polymer compounds used in these wheels are specifically formulated to resist flat-spotting, a common failure mode where conventional wheels develop permanent flat areas from sitting stationary under load at high temperatures. High-temperature polymer wheels maintain their round profile even after extended static periods inside hot ovens, which means smooth, vibration-free rolling when the rack or cart is moved again. Load capacities typically range from 250 to 1,200 lbs per wheel, covering the requirements of most rack and cart systems used in thermal processing.

These replacement wheels are available with stainless steel or high-temperature bearings to match the heat requirements of the wheel itself. When selecting high-temperature wheels, verify that the bearing type, axle material, and caster fork are also rated for your operating temperature, as the wheel alone is only one component of the heat equation. Our technical team can help you spec the complete high-temperature caster solution.