One of the most common causes of issues in hydraulic systems is faulty seals. This can happen for a number of reasons, from chemical or thermal degradation to manufacturer fault or just regular wear and tear. When it comes time to replace a worn or damaged oil seal, you want to be sure you’re picking out the right replacement. Here are some factors to consider for matching a new seal to the system it’s for.
Seals must be able to tolerate the expected range of temperatures within the hydraulic system, both during operation and at rest. High temperatures cause the material to melt or harden and become brittle, but low temperatures can also damage seals by contraction, weakening flexibility and allowing leaks. Anticipate the likely temperature range and select seal materials with that in mind.
A seal exposed to excessive pressure will likely fracture, possibly leading to …