Angular Contact Ball Bearing Ball Material Alloy Steel Bearing Industry Number 7409 Bore Diameter 45 mm Cage Material Brass Closure Open Contact Angle 40 Degrees Contact Bearing Type Angular Contact Lubricant Material Grease Oil Matched Bearing Type Not Matched/Single Bearing Maximum Speed 4 800 RPM Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows One Outside Diameter 120 mm Overall Width 29 mm Ring Material Alloy Steel