1. Fluid Leaks The most obvious indication that a hydraulic seal needs replacement is the presence of hydraulic fluid leaking from the system. Any visible fluid outside of the designated compartments is a red flag.
The aerospace industry also utilizes the 20x35x7 oil seals, particularly in systems where fluid containment is essential to safety and performance. They help maintain hydraulic systems and support the functionality of various components, from landing gear to fuel systems.