Spherical Ring – Precision Hydraulic Seals | Polypac

Spherical Ring Seals — High-Precision Solutions by Polypac

Product Overview

Polypac's Spherical Ring is a high-performance sealing component engineered to accommodate misalignment and angular movement in hydraulic joints and rotary interfaces. Combining a conformable sealing surface with robust support features, the Spherical Ring reduces leakage, compensates for imperfect housings, and enhances system reliability under dynamic loads.

Materials & Construction

Our Spherical Ring range uses advanced sealing materials to match application demands. Core options include filled PTFE formulations (bronze, carbon, graphite, MoS2, glass-filled) for low friction and high wear resistance, with compatible elastomer or fabric-backed configurations in NBR, FKM, EPDM, silicone and FFKM. Material selection is optimized for temperature, chemical exposure and pressure conditions.

Customization & Manufacturing

Polypac operates a 10,000+ sqm facility with 8,000 sqm of dedicated production space and industry-leading equipment. We offer custom Spherical Ring sizes, tolerances, machining and molding processes, and integrated O-ring or backup seal assemblies. Long-term partnerships with universities and research institutes enable rapid development of bespoke sealing solutions for special working conditions.

Performance & Applications

Engineered for hydraulics, valves, rotary unions, pumps and heavy machinery, the Spherical Ring delivers low friction, minimal wear and stable sealing under pressure and angular deflection. Its self-lubricating PTFE variants reduce heat generation and extend maintenance intervals, while elastomeric designs improve initial sealing and shock absorption.

Quality Assurance & Testing

Every Spherical Ring product undergoes rigorous dimensional, material and performance testing on advanced equipment. Polypac conducts life-cycle testing, friction and wear analysis, and chemical compatibility checks to ensure consistent field performance. Our quality systems and R&D collaborations drive continuous improvement.

Why Choose Polypac

With deep sealing expertise, large-scale production capacity and flexible customization, Polypac delivers reliable Spherical Ring seals tailored to your application. From prototype to volume supply, we provide technical support, rapid lead times and sealing solutions that enhance uptime and lower total cost of ownership.