defender rear hub seal

3. Aerospace High-pressure oil seals are essential in aerospace applications, where they are used in engines and landing gear, where they withstand not only high pressures but also extreme temperatures and environmental conditions.

Moreover, the presence of oil seals enhances the reliability of equipment. Contaminants such as dust, dirt, and water can severely impact the performance of sensitive components. The 35x52x7 oil seal ensures that these unwanted elements are kept at bay, protecting the integrity of bearings, gears, and other crucial parts of machinery.

1. Lip Seals These seals feature a lip that contacts the shaft. The design allows them to adapt to the shaft's movement, minimizing leak paths. They are ideal for applications where space is limited.

Oil seals are made from multiple compounds and materials. Some of the oldest, still in use today, are leather and felt compounds. The trend in mass production, however, has seen a move towards synthetic rubber or elastomers. Nitrile is by far the most popular material but developments in PTFE have created a surge of interest in buyers needing seals for high-speed shaft rotation applications. Viton is taking over from the polyacrylic and silicone, as it works better in high-temperature applications and has a high-resistance to abrasion and harmful chemicals.

Seals perform much better and longer when they are continuously lubricated with an oil that has the correct viscosity for the application and that is compatible with the seal lip elastomer material. The consideration of seal incompatibility, particularly with certain additives and some synthetic lubricants, should not be ignored, but unfortunately very often is.