An oil seal is designed to perform three major functions: to prevent lubricants from leaking outside the seal even under high pressure, to act as a barrier to retain the lubricating oil, and to prevent dirt and other contaminants from entering the unit.
Type A Oil Seals
Rotary Wheel Of Auto Parts
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
Multiple materials and compounds are used to make oil seals. Some of the oldest materials still used today include felt and leather compounds. However, the trend in mass production has experienced a shift towards synthetic elastomers or rubber.
Consequently, engines equipped with F5RTC spark plugs exhibit increased power output, better throttle response, and reduced emissions Consequently, engines equipped with F5RTC spark plugs exhibit increased power output, better throttle response, and reduced emissions
Its unique design, which typically features a flexiblelip and a metal or plastic reinforcement ring, allows it to adapt to slight misalignments and shaft irregularities, enhancing its sealing effectiveness Its unique design, which typically features a flexiblelip and a metal or plastic reinforcement ring, allows it to adapt to slight misalignments and shaft irregularities, enhancing its sealing effectiveness