This Zenith 320 Upgraded Kicker Bearing will work on any Zenith 320 Style table. The Zenith 320 Upgraded Kicker Bearing is 5/8 of a inch thick; where the factory bearing was 1/8 thick, giving you 4 times the surface! This Zenith 320 Upgraded Kicker Bearing is an easy replacement and it is great if your table has deep groves. Since the bearing is wider, it will also make lifting heaver patients easier.