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R166 ZZ Bearing, ID 3/16 inch x OD 3/8 inch x 1/8 inch Miniature Ball Bearing, Metal Shielded and Pre-Lubricated with Grease, 3/16 inch Precision Roller Bearing (10 Pack): Amazon.com: Industrial & Scientific
Amazon.com: SKF 6082Z Single Row Deep Groove Ball Bearing : Toys & Games
20 Pack 608 ZZ Ball Bearing, Bearing Steel & Double Iron Sealed Miniature Deep Groove 608