B21 Ball Bearing 7/8" OD X 1/4" ID WB02-02 simply apply the finishing oil

simply apply the finishing oil and wipe or drain off any excess

Soles and sides machined flat and square

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B21 Ball Bearing 7/8" OD X 1/4" ID WB02-02 simply apply the finishing oilFor replacement of worn bearings. If adding to the shank of a router bit, use a lock collar to secure the bearing. OD= Outside Diameter; ID= Inside DiameterWHITESIDE General Bearing Repair Kit. This handy kit includes spare bearings, screws, and wrench to replace bearings on most bits. Includes five 1 2" x 3 16" and two 3 8" x 3 16" bearings, ten screws, and a 3 32" Hex Key Wrench. Note: Products labeled "Ships Direct from Manufacturer" are shipped