- The spark plug generates a high voltage electrical spark that ignites the compressed air-fuel mixture at the precise moment it is most receptive to ignition. This ignition starts the combustion process, which in turn drives the pistons and generates power.
- Silicone Oil Seals – Are designed to specifically to absorb excess lubricants and less the friction and wear. They offer high thermal resistance and a large temperature range. However, they don’t handle abrasions and oxidized oils well.
U-shaped silicone gaskets are versatile sealing components used in various industries for their resilience, flexibility, and resistance to extreme temperatures and environmental conditions. These gaskets are commonly employed in applications where a reliable seal is required, such as in automotive, aerospace, and industrial equipment. The U-shaped design allows for easy installation and effective sealing, making them suitable for a wide range of applications.
After the oil seal is positioned in the groove, apply even pressure to the oil seal using a seal driver or a similar tool. This will help to seat the oil seal firmly in the groove and prevent it from moving during use. Make sure to apply the pressure evenly and gently, as applying too much force can damage the oil seal or cause it to deform.
- Low friction properties
- Chemical resistance



Oil seals, also referred to as shaft seals, are widely used to prevent the leakage of medium (such as oils and grease) along a rotating shaft. This leak prevention is primarily achieved by the sealing element which can be made from a wide range of materials that are chosen according to each application. They are commonly used in gearboxes, hydraulic cylinders, and related components.
Early engines used O-rings (also called packing rings or toric joints) as seals (first patented in 1896). These are just mechanical gaskets in the shape of a torus (a circular ring--like a lifesaver), seated in a groove and compressed during assembly between two or more parts. It creates a seal at the interface. However, O-rings require a fluid film to lubricate them. They have limited usefulness in vacuum application and at extremes of temperature. The modern oil seal represents a significant improvement over the simple O-ring because it effectively seals in lubrication and prevents contamination from outside under a wide range of pressures and temperatures.
ERIKS also supplies the types GR and GRST. These are virtually identical to the types R and RST, except in this case the metal inner ring is also completely encased in rubber. ERIKS uses FKM rubber here as standard, so these seals are ideal for use in acidic environments.
Box: If a BX appears at the end of the part number, that oil seal will be in a box.