85 mm x 180 mm x 41 mm 85 mm x 180 mm x 41 mm SKF NU 317 ECM SKF Bearing

100% Authentic. 85 mm x 180 mm x 41 mm 85 mm x 180 mm x 41 mm SKF NU 317 ECM SKF Bearing 85 mm x 180 mm x 41 mm 4,800 N Static Load Rating Highest Quality. 0.011 to 0.025 mm Radial Clearance Certified UBC Mechanical Electronic Instrument Co., Ltd. Supplier.

What is NU 317 ECM bearing cross reference？