Angular Contact Ball Bearing Bearing Industry Number 3306/5306 Bore Diameter 30 mm Cage Material Steel Closure Open Contact Angle 30 Degrees Contact Bearing Type Angular Contact Matched Bearing Type Not Matched/Single Bearing Maximum Speed 10 400 RPM Maximum Temperature 120 Degrees C Minimum Temperature -30 Degrees C Number of Rows Two Outside Diameter 72 mm Overall Width 30.2 mm Ring Material Alloy Steel System of Measurement Metric ABEC Rating 3