UDR Rod Seal – One-Piece Double-Acting Hydraulic Rod Seal with Integrated Backup Rings and Bleed-Back Function.
UDR one-piece rod seal with integrated backup rings and bleed-back function for high-pressure hydraulic cylinders. Anti-extrusion, low-friction, compact. PU, –35°C~110°C, ≤45 MPa.
UDR Rod Seal – A high-performance one-piece hydraulic rod seal engineered for high-pressure, high-cycle double-acting cylinder applications. This double-acting rod seal features an asymmetric lip profile that delivers positive bidirectional sealing while enabling controlled fluid return to the low-pressure side through its integrated bleed-back geometry. The built-in anti-extrusion backup rings resist gap extrusion under high-pressure spikes and cyclic loading, while the optimized contact contour minimizes friction, heat generation, and lip lift-off at elevated speeds. The monobloc cartridge design simplifies installation, eliminates assembly errors, and reduces groove machining costs, making it an ideal sealing solution for mobile, industrial, and off-highway hydraulic cylinders operating under extreme conditions. Material: abrasion-resistant polyurethane with integrated support elements. Temp: –35°C to +110°C. Pressure: up to 45 MPa. Speed: up to 2 m/s.
One-piece double-acting rod seal with integrated backup rings for high-pressure applications
Bleed-back geometry enables controlled fluid return and prevents pressure entrapment
Asymmetric sealing profile delivers reliable bidirectional performance with minimal leakage
Integrated anti-extrusion backup rings resist gap extrusion under pressure spikes
Low-friction polyurethane compound reduces heat, drag, and stick-slip for extended service life
Monobloc cartridge design simplifies installation and reduces assembly errors
High-pressure capability up to 45 MPa; wide temperature range –35°C to +110°C
Ideal for mobile, industrial, and off-highway hydraulic cylinders
UDR Rod Seal – One-piece double-acting hydraulic rod seal with integrated backup rings and bleed-back geometry. Delivers reliable bidirectional sealing, controlled fluid return, and anti-extrusion protection in high-pressure applications. Low-friction PU, compact cartridge design. –35°C~110°C, ≤45 MPa, ≤2 m/s.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
