- In conclusion, metallic oil seals are a vital component in many mechanical systems, providing reliable protection against fluid leakage and extending the life of the equipment. By understanding their structure, materials, applications, and maintenance requirements, users can ensure the optimal performance and longevity of these critical components.
- One of the primary functions of gasket rubber seals is to prevent fluid or gas leakage. In the automotive industry, for example, engine gaskets ensure that oil and coolant remain within the engine block, while preventing contaminants from entering the system. Similarly, in the plumbing industry, pipe joint seals prevent water leakage and maintain proper water pressure throughout a building.
NBR & FKM Furthermore, natural rubber gaskets are highly durable and long-lasting, making them ideal for applications that require frequent assembly and disassembly. Unlike synthetic rubber gaskets, natural rubber gaskets are less prone to degradation from exposure to heat, ozone, and UV radiation, ensuring a longer service life and reduced maintenance costs.


3. Seal types and numbering system
Fitting an oil seal
CS
Various materials with unique properties are utilised in the construction of rotary shaft seals, allowing manufacturers to tailor the sealing solution to specific industry requirements and ensure optimal performance.
1 .Material: There are 7 types of material used for oil seals, they are.
Raise the front of the car on ramps, apply the handbrake and chock the rear wheels. Clean round the sump and the crankcase , clutch and gearbox. Drain the engine oil (See How to drain engine oil and remove filter ). Use an adequate jack to lift the engine.
-40 °C to + 90 °C
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.
1) Common seal types and their features
One option is to buy oil seals from specialised gasket and sealing material companies like Polymer Trade Manufacturing Ltd, which is known for its expertise in dealing with gaskets and o rings. These companies not only offer an extensive range of oil seals but also provide expert advice to help customers select the right sealing materials for their specific requirements.
Polyurethane
Spark plugs play a crucial role in the combustion process of an internal combustion engine. These small but powerful components are responsible for igniting the air-fuel mixture in the engine's cylinders, ultimately powering the vehicle.