Radial Ball Bearing, Bearing Industry Number 6301, Bore Diameter 12 mm, Closure Double Sealed, For Environment Oily/Greasy, Outer Ring Width 12 mm, Outside Diameter 37 mm, Ring Material Alloy Steel, Seal Type Contact, System of Measurement Metric, Cage Material Steel, ABEC Rating 1, Ball Material Alloy Steel, Ball Material Grade AISI 52100, Bore Diameter Tolerance +0/-0.008 mm, Dynamic Radial Load Capacity 2,180 lbf, Includes Retaining Ring No, Lubricant Material Polyrex EM