The NYH piston rod seal is a reliable single-lip dynamic rod seal, specially engineered for reciprocating hydraulic cylinder rod sealing to block external oil leakage and retain stable system pressure. Made of high-strength polyurethane material, this NYH rod seal features an optimized lip profile that creates consistent contact pressure on the piston rod surface. It maintains a thin protective oil film during continuous back-and-forth movement, achieving low friction and minimal leakage without sacrificing wear resistance.
With strong resistance to extrusion and low compression set, the NYH piston rod seal performs steadily under medium and high cyclic hydraulic pressure. It works well with most standard hydraulic oils and tolerates a wide working temperature range. Its standard groove dimension conforms to common industry specifications, supporting simple installation and replacement for both OEM cylinder assembly and aftermarket maintenance. No extra machining is required for most metric piston rod sizes.
Commonly used on construction machinery, forklifts, hydraulic presses and agricultural hydraulic cylinders, NYH rod seals effectively reduce seal failure and equipment downtime. The robust PU body resists abrasion from tiny particles on the rod surface, extending the service life of the whole hydraulic sealing system. If you need a cost-effective, dependable primary rod seal for your fluid power equipment, the NYH piston rod seal is an ideal sealing selection.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
