dust seal
3. Pressure Maintenance In many applications, oil seals are designed to maintain pressure within a system. By preventing the exit of oil and the entrance of contaminants, they help in sustaining the necessary pressure levels for optimal operation. This function is especially important in hydraulic systems, where pressure plays a critical role in performance.
what is the function of oil seal

Brake drum wear typically results from several factors. Primarily, the friction generated between the brake shoes and the drum during the braking process leads to material degradation. This friction produces heat, which can cause the drum to warp or crack if the temperatures exceed certain thresholds. Additionally, heavy braking or aggressive driving habits can accelerate wear, as can poorly maintained braking systems that may cause uneven wear patterns. Contaminants like dirt, moisture, or oil can also contribute to premature brake drum wear, affecting performance and safety.