Albion PA wheels are made of a polyurethane elastomer that is open-cast on clean, close-tolerance aluminum cores. The polyurethane tread to chemically bonded to the core. This high-capacity polyurethane protects floors, is non-marking, and delivers a more quiet operation thans tandard metal wheels.
PA0450116 is a 4-inch mold-on polyurethane wheel with a roller bearing.
For more flexibility and options with this wheel construction, please explore the PD wheel series.