Self-Aligning Ball Bearing Bearing Industry Number 2204 Bore Diameter 20 mm Outside Diameter 47 mm Outer Ring Width 18 mm Ring Material Alloy Steel Bore Type Cylindrical Closure Double Sealed Cage Material Thermoplastic System of Measurement Metric ABEC Rating 1 Ball Material Alloy Steel Ball Material Grade 100Cr6 Dynamic Radial Load Capacity 10 100 N Lubricant Material Grease Maximum Speed 9 400 RPM Maximum Temperature 100 Degrees C Minimum Temperature -20 Degrees C