AlveyTech 5/8" (99502H) Caster Stem Bearing for Invacare Power Chairs - Replacement Bearings for Power Chair Casters, fits most Invacare like Pronto, Nutron, TDX, and 3G Storm Series (40117X006)

This 5/8" caster stem bearing for Invacare power chairs is also known as a 99502H bearing. It is used on most Invacare power chair models such as the Pronto, Nutron, and TDX series.

Unlike a wheel bearing which allows the wheel to spin on its axle, the caster stem bearing allows the caster fork to pivot.

Please note that this caster stem bearing is sold by the single piece and not in a set of two.