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A wheel's temperature rating is the operating range it's built to handle without the tread material degrading, softening, or becoming brittle — standard rubber and polyurethane wheels have a much narrower range than specialty high-heat or cold-storage wheels.
Standard wheel materials can soften in high heat (ovens, autoclaves) or crack in extreme cold (freezers), which is why specialty high-temperature and cold-storage wheel lines exist separately from general-purpose options.
Autoclaves, ovens, freezers, cold storage, and any environment operating well outside normal room-temperature range.
Using a standard wheel in an extreme-temperature environment. A wheel not rated for the actual operating temperature can soften, crack, or fail well before its load rating would otherwise suggest.
Can I use a standard polyurethane wheel in a freezer?
Not recommended — extreme cold can make standard formulations brittle. Look for a wheel specifically rated for cold storage.
What happens if a wheel exceeds its temperature rating?
The tread material can soften, deform, or crack, leading to premature failure well before normal wear would occur.
