Product Description
A PU U Seal, or Polyurethane U-cup Seal, is a U-shaped hydraulic seal made from polyurethane (PU) used in hydraulic and pneumatic systems to prevent leakage along moving rods or between pistons and cylinders. Its U-shaped profile features a static outer lip and a dynamic inner lip for effective sealing, while the polyurethane material provides high abrasion resistance, wear characteristics, and resilience. These seals are versatile and can be used for both rod and piston sealing applications.