Inch Size Miniature Deep Groove Ball Bearing R4-2z/2RS/Open 6.35*15.875*4.978mm / China Manufacturer / China Factory NINGBO JINGWEI IMP.&EXP. CO., LTD. Base Info Description Pre：Miniature Deep Groove Ball Bearing 6903-2z/2RS/Open 17X30X7mm / China Manufacturer / China Factory Next：Inch Size Miniature Deep Groove Ball Bearing R3-2z/2RS/Open 4.762*12.7*4.978mm / China Manufacturer / China Factory
