Hebei Hankai cylinder gland seal

Wheel bearing grease seals, often referred to simply as grease seals, are fitted between the stationary and rotating parts of a wheel bearing assembly. They create a barrier that prevents grease from leaking out while simultaneously keeping dirt, dust, moisture, and other contaminants at bay. Typically made from durable materials such as rubber or synthetic compounds, these seals are engineered to withstand high temperatures and pressures, which can occur during operation.

1. O-Rings These are torus-shaped seals that are widely used due to their simple design and versatility. They can be used in dynamic and static applications, and their effectiveness depends on the material and size.

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.

2. Protecting Against Contamination Wheel oil seals act as barriers against external contaminants. Dust, dirt, and moisture can enter wheel assemblies if seals fail, leading to corrosion and degradation of components. Keeping these harmful agents at bay is essential for maintaining the health of the vehicle.