12 mm x 32 mm x 10 mm KOYO 6201 JAPAN Bearing 17×40×12

12 mm x 32 mm x 10 mm KOYO 6201 JAPAN Bearing 17×40×12 with easy-to-use parts graphics, giving you the ability to check parts FAG BEARING CORP. availability, 501349/501310-qbl SKU: JAPAN KOYO Bearing pricing, examine remanufactured options. 12 mm x 32 mm x 10 mm

What is 6201 bearing cross reference？