USH Dual-Purpose Seal – Versatile U-ring seal designed for both piston and rod applications. Asymmetric lip profile enables flexible installation — internal sealing for pistons, external sealing for rods. Pressure-energized lips provide positive sealing in both mounting orientations with minimal leakage. Optimized lip geometry reduces friction, wear, and heat generation. Compact cross-section fits standard groove profiles and simplifies inventory management. Ideal for light to medium-duty hydraulic cylinders, pneumatic systems, and maintenance/repair applications. Material: high-grade polyurethane. Temp: –35°C to +100°C. Pressure: up to 25 MPa. Speed: up to 3 m/s.
USH Seal – Dual-purpose, piston or rod mounting. Asymmetric U-ring, bidirectional sealing, low friction, compact. PU. –35°C~100°C / ≤25 MPa / ≤3 m/s.
USH Seal – One seal, two ways. Piston or rod — flexible, reliable, efficient.
USH Dual-Purpose Seal – Versatile U-ring for piston and rod applications. Asymmetric lip design allows reversible installation. Reliable bidirectional sealing with low friction. For general-purpose cylinders. PU. –35°C to 100°C, up to 25 MPa, 3 m/s.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/