Publications Repository - Gdańsk University of Technology

Seals perform an important and at times overlooked function in a lubricant system. They prevent or minimize the movement of the lubricant between two surfaces and also minimize the level of contamination in the system. Seals are divided into static and dynamic types. Static seals operate in systems where the mating surfaces do not move relative to each other. In contrast, dynamic seals operate under conditions where the mating surfaces are in relative motion with each other. A previous TLT article discussed a second-generation engine oil seal prepared from polytetrafluoroethylene.1 This seal represented an improvement over a first-generation material because it was installed without an installation aid. Performance testing showed the benefit of having a reduced length and more grooves in the seal lip. Evaluation testing demonstrated that additional grooves led to a reduction in friction in the engine.

Authors

• dr hab. inż. Leszek Matuszewski link open in new tab ,
• Neil Canter