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- Regular maintenance is essential for the longevity and optimal performance of spark plugs. Over time, carbon and other deposits can build up on the electrodes, reducing the spark's intensity and potentially causing misfires. To prevent this, it is recommended to replace spark plugs at regular intervals, typically every 30,000 to 100,000 miles, depending on the make and model of your car.
- Suppliers often specialize in specific types of oil seals, such as metric or inch-sized, metal-banded, or double-lip seals. Some cater to niche markets like food processing or pharmaceuticals, where seals must meet stringent hygiene and chemical resistance standards. Others offer custom solutions, tailoring their products to the unique requirements of individual clients Others offer custom solutions, tailoring their products to the unique requirements of individual clients
Others offer custom solutions, tailoring their products to the unique requirements of individual clients Others offer custom solutions, tailoring their products to the unique requirements of individual clients
oil seal suppliers.
Oil seals are used in a great many machines.
Developments and issues
Polytetrafluoroethylene (PTFE, Teflon®)
In addition to their longevity, iridium spark plugs also provide improved fuel efficiency and overall engine performance. The consistent and powerful spark produced by iridium spark plugs helps to optimize combustion in the engine, leading to better fuel economy and smoother acceleration. This can result in savings at the gas pump and a more enjoyable driving experience for car owners.
iridium spark plugs for car

PTFE, which is used in the well-known brand Teflon®, is less commonly used, but it is the preferred material for specific rotating seals in the chemical, food and pharmaceutical industries. This material is notable for having a very low frictional resistance and the best chemical resistance. It can also withstand a very wide range of temperatures in these types of seals; -80 ˚C to 200 ˚C. The shafts on which oil seals with PTFE lips are used require a harder and finer finish. Something like an axle sleeve can also be used to meet this requirement.
There are a wide range of oil seals to select from for any number of uses, so this guide will break down the most common seals to help you choose the right one for whatever piece of machinery you are working on.


These types are made with a metal outer case and a PTFE lip. They are suitable for a wide range of temperatures from -90 °C to +260 °C.These lip seals can also be used for higher pressures of up to 10 bar (special types up to 25 bar) and rotational speeds of up to 40-45 m/s. Certain grades of PTFE are suitable for use in pharmaceutical and food applications. One important point is that PTFE lip seals do require a shaft with a harder, smoother finish.