Hebei Hankai 17x40x7 seal




The materials used in manufacturing hydraulic seals are also vital to their performance. Common materials include rubber compounds, polyurethane, and PTFE (Polytetrafluoroethylene). Each material offers different advantages and is selected based on the operating environment. For example, PTFE seals are highly resistant to chemicals and extreme temperatures, making them ideal for demanding applications.
hydraulic seal

Oil seals are generally constructed from materials that can withstand the specific chemical properties of the lubricant they are sealing. Common materials include rubber, silicone, and various elastomers. The design of an oil seal often incorporates a lip that rolls against a shaft or surface, creating a dynamic seal that can accommodate movement while maintaining its sealing capabilities.
dust seal vs oil seal

Once you’ve inspected the brake components, it’s time to try to free the drums. One common method is to gently tap the drum with a rubber mallet. This action can help to break the bond between the drum and the shoes. Be careful not to use excessive force, as you could damage the drum. If hitting the drum doesn’t yield results, consider applying brake cleaner to the assembly to help dissolve any corrosion.
seized drum brakes how to free
