Hebei Hankai inner hub seal

A well-known example of agricultural seals is the USDA Organic seal. This certification assures consumers that the products are grown without synthetic fertilizers or pesticides, promoting environmental sustainability. Similarly, GlobalGAP (Good Agricultural Practices) certification ensures that farming practices adhere to safety, environmental, and social responsibility standards. These seals not only reflect the commitment of farmers to quality and safety but also enhance marketability, as consumers are increasingly seeking products that align with their values.

Oil seals, commonly known as rotary shaft seals, are devices that prevent the leakage of lubricants while keeping contaminants such as dirt and moisture out. High temperature variants are designed to operate effectively in environments where standard seals would typically fail due to thermal degradation. These seals are made from materials that can withstand elevated temperatures, such as silicone, fluoroelastomers (FKM), and polyurethane.

The metal case reinforces the structure of the seal, allowing it to withstand external forces and maintain its shape under operational stress. Additionally, many seals feature a spring located behind the sealing lip, which exerts constant pressure on the lip against the shaft. This pressure helps maintain the integrity of the seal, especially in dynamic applications where the shaft is rotating.