Cylindrical Roller Bearing Bearing Industry Number 205 Bore Diameter 25 mm Bore Type Cylindrical Cage Material Steel Closure Open Inner Ring Outside Diameter 29 mm Lubricant Material Grease Oil Maximum Speed 14 000 RPM Grease 16 000 RPM Oil Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Number of Rows One Outer Ring Inside Diameter 47 mm Outside Diameter 52 mm Overall Width 15 mm Ring Material Alloy Steel Roller Material Alloy Steel