defender hub seal

Oil seals are specially designed sealing devices that fit into machinery to prevent the leakage of oil and other fluids while keeping contaminants like dust, dirt, and moisture out. Typically made from elastomeric materials, they exhibit flexibility, durability, and resistance to a wide range of temperatures and aggressive chemicals. Oil seals come in various shapes and sizes, tailored to fit specific applications and installation spaces.

At its core, a cylinder gland seal is designed to ensure that the hydraulic or pneumatic fluid remains contained within the cylinder, preventing leakage that can lead to loss of pressure and efficiency. The seal is typically mounted in a gland, which is part of the cylinder housing. As the piston moves within the cylinder, the gland seal interfaces with its surface, creating a barrier that minimizes fluid escape.

The design of high-pressure rotary shaft seals typically includes a flexible sealing lip that makes contact with the rotating shaft, combined with a robust outer component that holds the seal in position. The materials used in these seals must be durable and resistant to wear, heat, and chemicals. Common materials include elastomers like nitrile rubber, fluorocarbon rubber, and special composites designed for high-performance situations.