Angular Contact Ball Bearing Ball Material Alloy Steel Bearing Industry Number 7218 Bore Diameter 90 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 3 800 RPM Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows One Outside Diameter 160 mm Overall Width 30 mm Ring Material Alloy Steel