52mm Receiver Cup for BB Bearing ExtractorsReceiver cup for Wheels Mfg sealed bearing extractors. Machined aluminum cup, anodized red with 60mm OD and 52mm ID. 1 2" thru hole to fit over our 1 2" threaded rod press handles. This receiver cup is part of a system that requires additional pieces to function. Use the chart below to identify the parts needed for each bearing size. Part (One of each required) 22mm ID Bearings 24mm ID Bearings 25mm ID Bearings 29mm ID Bearings 30mm ID Bearings