Insert these casters into tubing, sockets, and drilled holes. Friction holds them in place.

Tread-on-core wheels have a polypropylene core that is harder than the tread, balancing strength with cushioning.

Soft and firm rubber wheels are shock absorbing and provide good traction on rough surfaces. Stems with expanding sleeve have a rubber sleeve that expands as the nut is turned compressing the sleeve. Stems with expanding wedges have metal wedges that expand outward when the nut is turned for a more secure fit than stems with expanding sleeve. Casters with total lock brake the wheel and lock the swivel with one press of the foot pedal. Sleeve wheel bearings prevent wear to the wheel bore but don't roll as easily as other bearings. Ball wheel bearings are the easiest to roll.

All have double-ball swivel bearings for the smoothest swivel.

Sealed bearings are completely sealed for the best protection against dust and debris.