OIL SEALS AND O RINGS

One key difference between these two sealing components is their application range; oil seals have higher pressure resistance compared to O rings which make them ideal for high-pressure environments like engine parts while O-rings work well for lower-pressure assemblies like valves and pipes. An oil seal used for sealing a rotating member is called a rotary seal. “O” rings are also used for a similar purpose. Oil seals are used to protect shafts and bearings from ingress of dirt and foreign matter and egress of oil or grease.