Wheel compound types

If you’re like me, you often find yourself wondering about the nature of wheels and casters while sipping your morning Mt. Dew. You say I’m a strange fellow? You should get a load of the boys in the lab. But don’t mock the boys – after all, they just whipped up these helpful descriptions to aid you in choosing the right wheel for your project.

These are just some of the more common options – for a more complete breakdown of the wondrous possibilities on offer, head over to Wheel and Caster 101.

Pneumatic – This wheel provides a cushioned ride for delicate instruments and breakable items. the tube-type, pressurized tire combines shock absorption with quiet operation and easy rolling. Standard with ball bearings.

Mold-on Rubber – Cushioned rubber tread permanently vulcanized to a semi-steel core is recommended for quiet movement with heavy loads. Molded core provides added strength with a reinforced, double-thick hub. Vulcanized rubber-tread wheels are standard with roller bearings. Temperature operating range is -40 degrees F to +159 degrees F. Durometer rating is 75A.

Phenolic – Phenolic compound reinforced with macerated fabric makes a high-strength, high-impact wheel resistant to oil, gasoline, even dilute acids. Compression-molded under extreme pressure, these wheels gain a dense uniform consistency. Phenolic wheels are non-marking, non-conductive, and spark-proof. They are available with plain or roller bearings. Will not warp or swell in a temperature operating range of -40 degrees F to +300 degrees F. durometer is 75D.

Semi-Steel – Cast iron toughened with steel, this wheel has extremely high load ratings and exceptionally long wear life. It’s recommended for rough wood and concrete floors – a good choice for moving heavy loads in manufacturing and warehousing. Long-life features include a heavy tread and plain or roller bearings. Ideal in extreme operating temperature ranges of -40 degrees F to +800 degrees F with optional high temperature grease.

Wheel and Caster is a locally owned business located in Spokane, Washington. We ship all over the country and strive to provide quick, helpful service. Wheel and Caster is a division of Norlift, Inc, which is also a pretty cool place. You can read more about it at the Norlift blog.

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