Check the listing for details. Oil Seal Seal Ring Rotary Shaft Seal FKM Rubber 18x30x7mm 2 Pcs. Condition: New. Listed at 13.99 USD. Features:The oil seal is specifically designed to keep out water and dirt or avoid oil leakage. Prevent dust into inside of the machine, and prevent lubricating oil from leaking.Rotary shaft oil seal is made of FKM Rubber and and steel plate spring which is water and oil resistance, heat resistant, good sealing, wear resistant, anti static. Durable and can be used for a long time.Widely used in automobiles, boat, motorcycle 'crankshafts, camshafts, differentials, shock absorbers, engines, axles, front and rear wheels and other parts.It is widely used in the manufacture of car sealing products, but it is not suitable for phosphate series hydraulic oils and gear oils with extreme additives.Specifications:Type:TCMaterial:FKM RubberInner Diameter:18mmOuter Diameter:30mmWidth:7mmInstallation:1.