Dynamic seals accommodate relative motion between sealing surfaces including reciprocating, rotating, and oscillating movements in hydraulic equipment. Reciprocating seals like U-cups, V-packings, and lip seals handle linear motion in cylinders and actuators. Rotary seals control fluid around rotating shafts in hydraulic motors and pumps. O-rings in dynamic applications provide simple... https://globalsealstech.com/hydraulic-seals/