Angular Contact Ball Bearing, Ball Material Alloy Steel, Bearing Industry Number 3203/5203, Bore Diameter 17 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 13,000 RPM, Maximum Temperature 175 Degrees C, Minimum Temperature -40 Degrees C, Number of Rows Two, Outside Diameter 40 mm, Overall Width 17.5 mm, Ring Material Alloy Steel