Angular Contact Ball Bearing Ball Material Alloy Steel Bearing Industry Number 3205/5205 Bore Diameter 25 mm Cage Material Polyamide Closure Double Shielded Contact Bearing Type Angular Contact Lubricant Material SRI 2 Grease Polyrex EM Grease Matched Bearing Type Not Matched/Single Bearing Maximum Speed 9 800 RPM Maximum Temperature 175 Degrees C Minimum Temperature -40 Degrees C Number of Rows Two Outside Diameter 52 mm Overall Width 20.6 mm Ring Material Alloy Steel