Polypac Ball-Head Ring — Reliable Self-Aligning Seal

Product Overview

The Polypac Ball-Head Ring is a precision seal designed for applications that require self-alignment, low friction, and consistent sealing under angular or oscillating motion. Engineered for hydraulic and pneumatic systems, this ring minimizes wear and leakage while extending service life.

Key Features

• Self-aligning design reduces edge loading and uneven wear.
• Low friction profile improves efficiency and reduces heat.
• Tight tolerances ensure a reliable seal in dynamic conditions.
• Available in a wide range of sizes for easy retrofit.

Materials & Customization

Polypac offers Ball-Head Rings in common and specialty materials to match operating temperature, chemical exposure, and pressure requirements. Choices include NBR, FKM, EPDM, silicone, FFKM, and engineered PTFE compounds (bronze, carbon, graphite, MoS₂, glass-filled). We also provide custom compound development for unique working conditions.

Applications

Ideal for hydraulic cylinders, rotary joints, pistons, valves, and other moving interfaces where alignment varies. The Ball-Head Ring performs well in mobile equipment, industrial machinery, and offshore systems that demand durable, low-maintenance sealing.

Why Choose Polypac

Polypac combines deep sealing expertise with modern manufacturing. Our custom rubber ring and O-ring factory spans over 10,000 m², with 8,000 m² of factory space and advanced production and testing equipment. Founded in 2008, we began with filled PTFE technology and now supply a broad range of elastomers and engineered solutions. Long-term cooperation with universities and research institutes ensures continuous improvement and reliable product performance.

Quality & Service

Every Ball-Head Ring undergoes strict inspection and testing to meet dimensional, material, and performance standards. We support custom sizes, rapid prototyping, and volume production, backed by technical consultation to select the right material for your environment.

Choose Polypac Ball-Head Ring for a dependable, low-friction sealing solution that adapts to angular motion and harsh conditions. Contact us for samples, material guidance, or a custom quote.