Angular Contact Ball Bearing, Bearing Industry Number 7209, Bore Diameter 45 mm, Cage Material Brass, Closure Open, Contact Angle 40 Degrees , Contact Bearing Type Angular Contact, Lubricant Material MT47 Grease, Matched Bearing Type Duplex, Maximum Speed 10,000 RPM, Maximum Temperature 100 Degrees C, Minimum Temperature -40 Degrees C, Number of Rows One, Outside Diameter 85 mm, Overall Width 19 mm, Ring Material Alloy Steel, System of Measurement Metric, ABEC Rating 3