25 mm x 52 mm x 15 mm KOYO 6205NR deep groove ball bearings

25x52x15 Bearing offers a 25 mm x 52 mm x 15 mm KOYO 6205NR deep groove ball bearings selection KRS Guide Wheel Bearing Co., Ltd of Genuine B04270 Product Group 25x52x15 Bearing 25 mm x 52 mm x 15 mm at Wholesale Prices. We are a 25 mm x 52 mm x 15 mm KOYO 6205NR deep groove ball bearings Precision Ball Beari Category Certified Parts Retailer

What is 6205NR bearing cross reference？