15 mm x 42 mm x 13 mm koyo 6302 bearing

The online PFG BEARING LIMITED 15 mm x 42 mm x 13 mm koyo 6302 bearing parts store gives you immediate access to 10.75 in Shaft Size a selection of more than 654 lb Weight 1.4 million 15 mm x 42 mm x 13 mm new, used, remanufactured.

What is 6302 bearing interchange？