Metal cased design


As type A with dust lip
Selecting Quality Gaskets and Spark Plugs

The temperature range of nitrile is −35° to 120 °C (−30° to 250 °F). Due to this wide range, NBR seals can be used for gas oil, silicone oil, animal/vegetable oils and fat, hydraulic liquid as well as hot and cold water. In addition, NBR is oil resistant and has an excellent abrasion resistance, so for any application that demands shock absorbers, NBR is a perfect choice to go with.
If you use accessories such as installation tools or grease containers, it is just as important to ensure they are taken care of. A good practice is to cover grease containers with a sealable lid when not in use. In doing so, you reduce the risk of dirt contaminating the grease and, subsequently, your oil seal.
Clean sediment out of the sump with petrol and a stiff brush . Dry with a lint-free cloth.

(ASTM*1 code)
First, wash your hands before handling the oil seal. This is because dirt on the sealing surface or oil in fingerprints can compromise the integrity of the seal, while small particles can cause wear and tear, damaging the sealing surface and leading to leaks.
Secondly, do not unpack the seal unless you are ready to install it. After opening, the seal face must be cleaned before installing it on the equipment to prevent contamination.
Finally, ensure that your equipment is clean. This is because dirty equipment can affect the effectiveness of the oil seal.
NBR is recommended for the majority of standard applications and is the most commonly used rubber (elastomer) material. This is because of Nitrile's compatibility with most environments as well as its relatively low cost. Generally nitrile is used for disposable non-latex gloves, footwear, automotive transmission belts, synthetic leather, hoses, o-rings, gaskets, oil seals, and more.