8 Tips to Keep in Mind when Installing or Replacing Oil Seals
How are they used?
Viton Oil Seals
As type C with dust lip
Choosing Quality Oil Seals:
The other way oil seals work is by stopping outboard materials that can damage the machine or contaminate its lubricant. The outboard materials that the oil seal will need to stop depend on the application. However, the most common kinds are dirt, moisture, and the particles produced during manufacturing.
Lift out the rags without dropping dirt into the engine, bores or passages.
Cassette Seals

thick rubber gasket. This makes them ideal for outdoor and harsh environment applications where other materials may deteriorate quickly. Additionally, rubber gaskets are non-conductive and can provide an effective barrier against electrical currents, reducing the risk of electrical hazards.


Construction of an Oil Seal
Table 14.1. Fluoroelastomers Used in Oil Aging5
This type of oil seal can withstand only low speed and friction. It is recommended in places where thick fluid or grease is to be sealed. This is not recommended for difficult applications.
There is a British Standard laid down for the control of synthetic rubbers. BS 3574 (1989) helps to determine shelf life – for instance, Nitrile (NBR) and Polyacrylic (ACM) are Group ‘B’ rubbers and have a 7-year life, whilst Silicone (VMQ) and Fluoroelastomers (Viton®) are Group ‘C’ rubbers and have a 10-year shelf life. PTFE and Leather do not come into this category but like the others should be kept in the original packing for as long as possible away from direct light, dust, and humidity. Ozone, which can also be produced by battery-driven forklift trucks has a very bad effect on synthetic rubbers. Finally, protect the sealing lip – DO NOT hang the seals on nails, wire etc.

locking gasket. This helps prevent damage and prolong the life of the equipment, ultimately saving manufacturers time and money.