Angular Contact Ball Bearing Ball Material Alloy Steel Bearing Industry Number 3306/5306 Bore Diameter 30 mm Cage Material Polyamide Closure Double Sealed Contact Bearing Type Angular Contact Lubricant Material SRI 2 Grease Polyrex EM Grease Matched Bearing Type Not Matched/Single Bearing Maximum Speed 7 600 RPM Maximum Temperature 175 Degrees C Minimum Temperature -40 Degrees C Number of Rows Two Outside Diameter 72 mm Overall Width 30.2 mm Ring Material Alloy Steel