Hebei Hankai wiper system

Rotary shaft seals, also known as oil seals or lip seals, are critical components in various mechanical systems. They are designed to prevent the leakage of lubricants, oils, and other fluids while also protecting the internal components from dust, dirt, and other contaminants. These seals play a vital role in ensuring the smooth operation and longevity of machinery and automotive systems.

The functioning of double lip oil seals is based on the principle of hydrodynamic lubrication. When a shaft rotates, the primary lip establishes a contact with the shaft surface, creating a micro-film of lubricant that facilitates smooth operation. This film reduces friction and wear, allowing the seal to maintain its integrity even under high-speed conditions. The secondary lip plays a crucial role in enhancing the sealing efficiency by reducing the chances of oil escaping and contaminants entering the sealed environment.

Another significant benefit is their ability to minimize contamination. The dual sealing system effectively prevents dirt, dust, and other foreign particles from entering the machinery, thereby protecting internal components from damage. This protective feature is particularly crucial in industries that operate in harsh environments or where precision is paramount.