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Spanner Bushing
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Spanner bushings are simple, heavy duty sleeves used inside caster wheels to keep the bearing aligned and the wheel rolling smoothly. They fit between the bearing and the axle bolt, creating a secure, consistent spacing that prevents the wheel from binding or wobbling. These bushings help extend the life of both the wheel and the bearing by reducing side load and keeping everything running straight. Common in carts, dollies, and industrial equipment, spanner bushings are an essential part of any caster setup that needs steady performance and long lasting reliability.
If wheels with ball or straight roller bearings are mounted in casters they should be equipped with a spanner bushing. If wheels with straight roller bearings are to rotate directly on a shaft (without a spanner bushing), then the shaft should be hardened and ground. For sizes other than shown, please contact us.
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And if you need CAD files, we’ve got you covered. Contact us today for instant access to our complete CAD database covering all of our Caster products. Our extensive CAD library includes detailed specifications for every model and wheel we manufacture, making it easy to find the exact caster or wheel for your project or need. For premium access to the full database, reach out directly to our Sales Engineer Team by clicking the button below
Caster City® has been supplying the highest quality plate casters, stem casters and wheels since 1977.
This include all casters and wheels: stainless, pneumatic, stem (threaded stem and expanding rubber stem ), swivel, rigid, locking, total locking, replacement, chair and furniture casters. Caster wheels include phenolic, rubber, polyurethane, polyolefin, steel, v-groove.
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Whether you’re in aerospace or pharmaceuticals, we have a caster tailored to your unique needs.
Our casters undergo rigorous testing to ensure they stand up to the demands of your industry.
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