- Spark plug motors, also known as ignition engines, play an essential role in the functioning of numerous mechanical devices, particularly in the automotive industry. These engines derive their name from the spark plug, a critical component that ignites the air-fuel mixture inside the combustion chamber, thereby propelling the vehicle forward.
- Understanding these percentages is not only essential for engineers and technicians but also for end-users who rely on the seamless functioning of machinery. They highlight the delicate balance required in oil seal design and operation, emphasizing the need for precision, quality materials, and proper maintenance.
- oil & gas
Rotary Wheel Of Auto Parts
Condition: New
Oil seals, also known as rotary shaft seals or lip seals, are a specific type of gasket designed to prevent the leakage of oil or other fluids in rotating shafts.
Installation tips for oil seals
Purpose of an Oil Seal
Oil seal characteristics
Even though it’s better than other materials in terms of toughness and wear time, it is preferably used in dry-running applications. The salient demerit of this material is its cost.
Maintenance and Replacement of Gaskets
To do this, turn the engine with a socket on the crankshaft pulley bolt until the rotor arm is pointing to the plug contact of the timing cylinder (usually No. 1, check in the car service manual), and the timing marks on or behind the pulley show exactly top dead centre ( TDC ).
In addition to size and material, the design and construction of the oil seal are also crucial factors to consider. The 65x90x10 oil seal is typically constructed with a metal casing, a rubber sealing lip, and a spring for added tension. This design helps to create a tight seal and prevent oil from leaking out, even under high pressures and temperatures.
oil seal 65x90x10

As shown in Figure 1, sealing devices come in two types: contact and non-contact.
Oil seals are among the major contact type sealing devices.
Standard springs are made of carbon steel. We use stainless-steel springs for our GR and GRST oil seals made from FKM rubber. In some rare cases, an O-ring is even used as a spring element. Standard PTFE lip seals are not fitted with springs.


In conclusion, right valve cover gaskets, intake valve cover gaskets, head gaskets, and valve cover gaskets are essential components in automotive engines, contributing to the efficiency, performance, and reliability of the engine. Understanding the significance of these components and their proper maintenance and replacement is crucial for optimizing the performance and longevity of the engine.
The depth of the bonded seal can be less and the space between the bore and the outside diameter can be changed for ease of fitting. The bonding of rubber to metal is an important factor to be considered in the manufacture of such seals and should be considered carefully, since failure of the bond will cause the seal to fail. The metal case of the oil seal is usually made from mild steel of deep drawing quality which enables blanking, punching, stamping of the steel to the required dimensions.
The pulley may slide off easily; if not, use a universal puller, which you may be able to hire.
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.