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Wheels and castors online shop - Expander
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Expander Fittings FAQs – Tube Adapters for Swivel and Fixed Castors
An expander is a tube adapter that allows castors to be securely fixed inside round or square tubing without welding, using an expanding sleeve system.
Use expander fittings when you want to mount wheels and castors into open tube frames, such as furniture, display stands or lightweight trolleys.
Expander systems are available for different internal tube diameters, ensuring a tight fit in common steel or aluminium tube sizes.
Yes, expander castor fittings can usually be loosened and removed, allowing you to replace or reposition the castors on tubular frames.
Expander adapters can be used with compatible swivel and fixed castors that have the correct stem design for the expander system.
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