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
Pranav Maddox, United Kingdom 28/02/2020
Excellent quality service and Price.
Dominic Lang, United Kingdom 18/12/2019
High quality service, high quality oil seals.
NICHOLAS BAYMAN UNITED KINGDOM 25/09/2019
Very easy to use website unlike some others I've used, Found the oil seals I needed with no trouble at all. Delivered next day even though I'd only opted for free post. Great stuff.
Aldo Coffey, United Kingdom 04/08/2015
Very good seals, I can get my gearbox fixed now. My seal fitted very well in my gearbox. Thanks alot.
Charlie Gale, United kingdom 27/07/2015
Excellent service once again at a very competitive price. Being well away from industrial suppliers this service is godsend.