The RS Pro oil seal typemetric nitrile double has 28mm internal diameter， 40mm outer diameter and 5mm thick. Nitrile is the most cost effective and commonly available oil seal material. Commonly used in driveshafts， crankshafts and hydraulic cylinders whererotating shaft is lubricated by oil or grease. NBR is good for applications where the oil seal requires resistance to lubrication oils， hydraulic fluids and grease. Nitrile oil seals are not suitable for use with brake oil， phosphoric ester and ester base.Colour: Black Operating temperature range: -20℃ to 90℃
