- Oil seals are available in various designs, such as lip seals, labyrinth seals, and mechanical seals, each designed for specific applications and operating conditions. Lip seals are the most common type of oil seal and are used in a wide range of applications, from automotive engines to industrial machinery. Labyrinth seals are used in applications where high speeds and pressures are involved, while mechanical seals are used in critical applications where tight sealing is essential.
• Super helix seal
Explore All About Industrial Oil Seals
What are Oil Seals?
When included, the garter spring applies pressure to the sealing lip against the shaft, ensuring a tight seal. The choice of material, like that of the case, largely depends on the environment of use.
An oil seal, also known as crankshaft retainer, is a small device, but essential to ensure the proper engine operation. It plays a key role in all moving parts of an engine, acting as a physical barrier. This mechanical seal fulfils the dual purpose of sealing a rotary shaft to maintain the necessary lubrication (avoiding leaks) and preventing other foreign matter from contaminating shafts and bearings in the rotary shaft equipment.
No. Code and number Example ① Seal type code (*)
Rotary Wheel Of Auto Parts
1、For the factory
Construction of an Oil Seal
1) Oil seals for cars
Minor lip The minor lip prevents the entry of dust and contaminants from outside.
Lubricant can be retained in the space between the main lip and the minor lip.
Type ‘C’ oil seal has an additional cup inserted into the outer cup of ‘B’ type. The supplementary metal inner ring provides a superior stiffness. This type is recommended for use in heavy polluted environments. As the static sealing between housing and metallic shell is limited, low viscosity media can “creep”.
ERIKS type R (type A according to the DIN standard) is identical in shape to type M, but has a rubber outer case with metal reinforcement on the inside. The rubber creates a good seal in the housing, even if the housing has suffered minor damage or is not in its best condition for other reasons. The RST version has a dust lip. These types are often chosen to replace a type with a metal outer case because they are easier to install and can cope with minor damage to the groove, such as scratches.