Cylindrical Roller Bearing Bearing Industry Number 211 Bore Diameter 55 mm Bore Type Cylindrical Cage Material Brass Closure Open Inner Ring Outside Diameter 61.5 mm Lubricant Material Grease Oil Maximum Speed 6 300 RPM Grease 7 400 RPM Oil Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows One Outer Ring Inside Diameter 92 mm Outside Diameter 100 mm Overall Width 21 mm Ring Material Alloy Steel Roller Material Alloy Steel