Angular Contact Ball Bearing Ball Material Alloy Steel Bearing Industry Number 7303 Bore Diameter 17 mm Cage Material Steel Closure Open Contact Angle 40 Degrees Contact Bearing Type Angular Contact Lubricant Material Grease Oil Matched Bearing Type Not Matched/Single Bearing Maximum Speed 3 350 RPM Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows One Outside Diameter 47 mm Overall Width 14 mm Ring Material Alloy Steel