The shaft on which the oil seal is mounted has to be ground to a rough surface finish. The shaft also should be hardened to prevent grooves forming on the shaft when the pressure is exerted by the spring on the seal. The area where the seal is fitted also has to be ground to prevent grooves that tend to wear out the lip of the oil seal faster than normal.
Regular inspection and maintenance of oil seals are essential to identify signs of wear, damage, or leakage. Proper lubrication and adherence to recommended service intervals can help extend the lifespan of oil seals. When replacement is necessary, selecting the correct seal type and ensuring proper installation are critical to maintaining the integrity and performance of the equipment.
- A spark plug O-ring is a small but essential component in the operation of a vehicle's engine. This tiny ring plays a crucial role in maintaining the seal between the spark plug and the engine block, preventing any oil or debris from entering the combustion chamber.
- 1. Automotive Industry Metal-to-oil seals are commonly used in engine systems, transmission systems, and hydraulic systems to prevent oil leaks and maintain fluid integrity.
Installation tips for oil seals
Special exceptions still apply within the Volkswagen group. With PTFE oil seals, an aluminium or plastic housing is used in many different engine series. The Top Dead Centre (TDC) signal is no longer measured at the flywheel, but directly using a sensor on the rear crankshaft flange and integrated sensor in the oil seal. Special procedures and tools must be used for the disassembly and assembly of these parts.

Garter Spring
Have you found the right oil seal for your application? The next step is fitting the oil seal correctly, so that it remains undamaged.
(5) The surface finish of the shaft directly affects the service life of the oil seal, that is, the higher the shaft finish, the longer the service life of the oil seal.
3. The spring on the lip of the oil seal tends to provide support to the lip and prevents the lubricant from leaking outside and also prevents the entry of contaminants from outside.