
Another important factor to consider is the temperature range in which the gasket will be used. Natural rubber gaskets have a broad temperature range, but it is crucial to select a gasket material that can withstand the specific temperature extremes of your application without losing its sealing properties.
Shaft Hardness
size:105*135*15
Super Helix Seal
Take extra care with a light alloy block or head. It is vital to avoid scratching the machined surface.

Rubber type
4. The sealing function of the oil seal is good and the service life is long. It has the certain adaptability to the vibration of the machine and eccentricity of the main shaft.
Oil seals are widely used as sealing devices for machines.
JTEKT's oil seals are described in our catalog, Oil Seals & O-Rings.
However, the catalog uses a large number of technical terms and is very long, so many people seem to have trouble handling it.
Therefore, this series of columns will summarize the following in order:
• The structure, functions, and types of oil seals
• How to select the right oil seal
• Handling of seals, and causes and countermeasures for oil seal failure
Summary
All are fitted with a spring to preload the sealing lip. All these types are for non-pressurised or low-pressure applications up to 0.5 bar for diameters of a limited size. For diameter of 500 mm or more, the maximum pressure is 0.1 bar. For higher pressures, special types or PTFE lip seals can be used.
Constructional Aspects of an Oil Seal: