Radial Ball Bearing, Single Row, Double Shielded, Bore Dia. 17 mm, Outside Dia. 47 mm, Width 14 mm, Steel Shield Material, ABEC Tolerance 1, Dynamic Load Capacity 3,060 lb, Static Load Capacity 1,470 lb, Max. RPM 17,000 RPM, Temp. Range -40 Degrees to 350 Degrees F, Steel Bearing Material, Pressed Steel Cage Material, Polyrex EM Grease, Industry Number 6303 ZZ/C3