Cylindrical Roller Bearing Bearing Industry Number 208 Bore Diameter 40 mm Bore Type Cylindrical Cage Material Brass Closure Open Inner Ring Outside Diameter 46.5 mm Lubricant Material Grease Oil Maximum Speed 10 000 RPM Oil 8 500 RPM Grease Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows One Outer Ring Inside Diameter 73.5 mm Outside Diameter 80 mm Overall Width 18 mm Ring Material Alloy Steel Roller Material Alloy Steel