Oil Seals: Designed to aid trouble-free operation of your equipment, providing an excellent barrier against the escape of oils and greases and preventing the ingress of foreign matter. Benefits: Excellent wear resistance, good running properties, high resistance to chemicals and petroleum based fuels including petrol, diesel and LPG.
An oil seal normally consists of three basic components: The Sealing Element (the nitrile rubber part), the Metal Case, and the Spring. It is a widely used sealing component. The function of a seal is to prevent the leakage of medium along the moving parts. This is mainly achieved by the sealing element. Nitrile Rubber (NBR)
NBR is the most commonly used seal material. It has good heat resistance properties, good resistance to oils, salt solutions, hydraulic oils, and gasoline. Operation temperatures are recommended from -40deg C to 120deg C. It also functions well under dry environment, but only for intermittent periods.
Cross section of an R21 / SC style oil seal.
This is a single sealing lip seal arrangement.
The seal cases are made from SAE 1008-1010 Carbon Steel and are often coated in a very thin layer of Nitrile rubber to assist sealing in the housing.
The principle function of the metal case is to impart rigidity and strength to the seal.
The spring is made from SAE 1050-1095 Carbon Spring Steel which has a protective zinc coating.
The principle function of the spring is to maintain an even gripping pressure around the shaft
Hugo Lin, United Kingdom 19/12/2019
Found the oil seals I needed, very pleased
Darien Dyer, United Kingdom 19/12/2019
I bought this oil seal from you the other day and I was very impressed with every aspect of of the service you offer. Price, quality and quick delivery were all absolutely spot on. Thanks Simply I will certainly recommend you to my colleagues.
Ashton Macdonald, United Kingdom 25/09/2019
The pictures of oil seals on the website are clear and easy to see multiple perspectives.
Pablo Meza, United Kingdom 08/03/2018
speedy delivery - thanks
Neale Didcock, United kingdom 19/11/2015
Very fast delivery and always the goods are in stock, good quality and competitive prices.