Heat resistance


The group of oil seals used in dynamic applications include radial shaft seals that seal a rotating shaft around its circumference. They are also known as lip seals, but in this blog we will use the term oil seals.
: the metal case supports the rotary shaft seal, ensuring the structural stability.
• Machining of lip surface (stable oil drip under pressure)
Selecting Quality Rubber Valve Cover Gaskets
Heat resistance
H7 or H8
2. If the nominal bore diameter exceeds 400 mm:
H7
3. Dust and debris are common reasons for oil seal failure.
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