Angular Contact Ball Bearing Ball Material Alloy Steel Bearing Industry Number 3308/5308 Bore Diameter 40 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 5 900 RPM Maximum Temperature 175 Degrees C Minimum Temperature -40 Degrees C Number of Rows Two Outside Diameter 90 mm Overall Width 36.5 mm Ring Material Alloy Steel