Polypac Spherical Ring Seal

Product Overview

Polypac Spherical Ring is a high-performance seal designed for hydraulic cylinders, rotary joints, pumps, and other moving assemblies where angular misalignment or rotation occurs. Built from advanced PTFE blends and quality elastomers, it reduces friction and delivers reliable, long-lasting sealing in tough conditions.

Why Choose Polypac Spherical Ring

Polypac combines decades of sealing expertise with industry-leading production and testing facilities. Our Spherical Ring stands out because it offers:

• Low friction and excellent wear resistance for longer service life
• Adaptable sealing faces that handle misalignment and rotary motion
• Wide material choices, including bronze-, carbon-, graphite-, MoS₂- and glass-filled PTFE, plus NBR, FKM, silicone, EPDM, and FFKM elastomers
• Custom sizes and compounds to match specific working conditions

Material & Quality

Founded in 2008, Polypac began with specialty PTFE seals and has expanded to a full range of O-rings and rubber parts. Our custom rubber ring and O-ring factory spans over 10,000 m², with 8,000 m² of production space and advanced equipment for precise molding and testing. We also collaborate with universities and research institutions to continue improving materials and designs.

Performance Benefits

The Spherical Ring offers dependable sealing across a broad temperature and chemical range. Its PTFE face reduces stick-slip and friction, while the elastomeric backing ensures a secure fit and pressure-responsive sealing. The result: fewer leaks, less downtime, and lower maintenance costs.

Applications

Ideal for hydraulic systems, pivot joints, rotary unions, valves, and mobile equipment, the Polypac Spherical Ring is suited to oil, water-glycol, synthetic fluids, and many industrial media. Custom formulations allow use in high-temperature, high-pressure, or chemically aggressive environments.

Buy with Confidence

Choose Polypac for proven manufacturing, strict quality control, and the flexibility to provide tailored sealing solutions. Contact us to specify materials, dimensions, and performance requirements—our engineering team will recommend the best Spherical Ring for your application.