dbde24e1-4012-47b6-8db4-e89ee4ca5a70 - Polypac

English

Turkish

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

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.

FAQ:

How can I prevent seal damage during installation?

Use Tools: Always use dedicated installation tools (e.g., picks, cones, guides). Lubricate: Always lubricate the seal and the contact surface. Protect Sharp Edges: Cover sharp threads and edges with tape or use an installation sleeve. Check the Groove: Ensure the installation groove is clean, deburred, and undamaged.

How do I choose the right material for my sealing application?

Material selection depends on four key factors: Media: What fluid or gas will the seal contact? (e.g., petroleum oil, water, chemicals, steam) Temperature: What is the minimum and maximum operating temperature? Pressure: What is the system's operating pressure? Are there pressure spikes? Application: Is it a static, dynamic, or rotary seal? Example: NBR (Buna-N) is excellent for standard hydraulic oil, while FKM (Viton®) is needed for high temperatures or aggressive chemicals.

When should I use a spring-energized seal instead of a standard elastomeric seal?

Consider a spring-energized seal (e.g., GSF, SPN types) for demanding applications involving: Extreme Temperatures (below -30°C or above +200°C) Aggressive Chemicals that elastomers can't handle Very Low Leakage or "Zero Leakage" requirements Poor Lubricity or dry running conditions The internal spring maintains constant sealing force, compensating for wear and system variables.

What is the purpose of the metal spring in a rotary shaft seal?

The garter spring in a shaft seal (e.g., FSKR, SPGO types) provides a constant radial force on the sealing lip. This ensures consistent contact with the rotating shaft, compensating for minor wear, eccentricity, and vibration to prevent lubricant leakage.

Table of Contents

≡

Spherical Ring Seals — High-Precision Solutions by Polypac
Product Overview
Materials & Construction
Customization & Manufacturing
Performance & Applications
Quality Assurance & Testing
Why Choose Polypac

Related Blog

What are common inspection and maintenance tips for shaft seals?

This guide provides essential information on rotating shaft seals, including their applications, common failure causes, inspection and maintenance tips, and how to select the right seal material. It also highlights Polypac's advantages in seal manufacturing.

What are common inspection and maintenance tips for shaft seals?

FKM: The Complete Guide to High-Temperature & Chemical-Resistant Sealing | Polypac

Discover Polypac’s comprehensive guide to FKM seals, designed for high temperature and chemical resistant applications. Learn how FKM provides durable, reliable sealing solutions to enhance performance and safety in demanding industrial environments.

FKM: The Complete Guide to High-Temperature & Chemical-Resistant Sealing | Polypac

How to install a rotating shaft seal step-by-step?

This guide provides essential information on rotating shaft seals, including installation steps, maintenance tips, and common troubleshooting techniques, tailored for professionals in the seal manufacturing industry.

How to install a rotating shaft seal step-by-step?

The Ultimate Guide to Rod Seals: Types, Selection, Failures, & Future Trends in 2026

A comprehensive guide for engineers and maintenance professionals on rod seals. Covers types, material selection, failure analysis, installation best practices according to ISO standards, and future industry trends.

The Ultimate Guide to Rod Seals: Types, Selection, Failures, & Future Trends in 2026