10pcs R8ZZ EE4ZZ R8 deep groove ball bearing 12.7x28.575x7.938mm inch miniature bearing 1/2" x1-1/8" x5/16" ABEC3 - AliExpress
Bearing R8 R8ZZ R8Z R8RS R8-2RS 5/8x1-3/8x11/32 inch Ball Bearings Single Row Deep Groove Ball Bearings 1Pcs (Color : R8-2RS): Amazon.com: Industrial & Scientific
Pack of 10 Ball Bearing R8ZZ 0.500"x 1.125"x 0.313" inch VXB Imperial Dimensions | eBay
MRC® R8ZZ | Purvis Industries
Amazon.com: 10 PCS R8ZZ Premium Double Metal Shielded Bearings 1/2 x 1-1/8 x 5/16 Inch Deep Groove Ball Bearing, Replacement for Industrial Equipment, Clutches, Drives, Micro Motor, Office Equipment and Others : Everything Else