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
Aidan Logan, United Kingdom 06/01/2020
Using the website to find my required oil seals was a simple and quick process, thank you.
Harley Ismael, United Kingdom 30/12/2019
These oil seals were just what i needed
Matthew Tristin, United Kingdom 04/10/2019
The seals i ordered arrived the next day, packaged and delivered in perfect condition.
Douglas Parker, United kingdom 07/12/2015
Figured out I didn't need to buy standard sized seals from my known supplier so I gave this lot a shout and bought 3 for nearly half the price I've previously paid for one. Arrived the day after I ordered them, excellent service.
John Jeffries, United kingdom 26/11/2015
very easy to order and with reasonable prices. it is a pleasure to do business with you.