Amazon.co.jp: uxcell 623ZZ Deep Groove Ball Bearings Double Shielded Single Row Chrome Steel 0.1 x 0.2 inches (3 x 10 x 4 mm), Pack of 10 : Industrial & Scientific
Amazon.co.jp: 623ZZ : Industrial & Scientific
623ZZ Bearings - 3 x 10 x 4 (M-BEARING-623) : Amazon.ca: Industrial & Scientific