
For 45460, 45461, 45750, 45850, 45950, 57100, 57106, 57112, and RC-4950.Amana Tool uses only the finest, industrial quality, precision ball bearings available. Bearings are double steel-shielded for extra rigidity and to deter dust. A special high-performance, high-temperature grease is used for maximum bearing life.Note: Solvents should not be used to clean ball bearings, as this ill deteriorate the special grease. "Frozen" bearings (those that do not rotate freely) should be replaced immediately.
Inside Diameter (D)3/16 in