Angular Contact Ball Bearing Ball Material Alloy Steel Bearing Industry Number 7220 Bore Diameter 100 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 4 500 RPM Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows One Outside Diameter 180 mm Overall Width 34 mm Ring Material Alloy Steel