20 32 6 oil seal

Double lip oil seals find extensive applications across numerous industries, including automotive, aerospace, manufacturing, and construction. In automotive applications, they are commonly used in wheel hubs, gearboxes, and engine components to prevent oil leakage and protect vital parts from dirt and moisture. In the aerospace industry, double lip seals are essential for hydraulic systems and landing gear mechanisms, ensuring reliable operation under varying pressure conditions. Furthermore, in manufacturing and construction, these seals are integral to machinery that requires lubrication to function correctly and efficiently.

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.

Lithopone’s historical significance is further accentuated by the advancements and modifications that followed its inception. The 1874 patent by J.B. Orr, for instance, ushered in a new white pigment—Orr’s Zinc White. This innovation was attained by co-precipitating zinc sulfate and barium sulfide, followed by a calcination process. Further refinements marked the subsequent decades, the most notable being the enhancement of lightfastness achieved in the 1920s by introducing small amounts of cobalt salts before calcination.

Lithopone B301, Lithopone B311 powder is widely used in coatings, printing ink, rubber, plastic industry, etc.