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

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Polypac OEM Spec Guide Ring — Custom O-Rings & Rubber Rings

Polypac OEM Spec Guide Ring: reliable, custom O-rings and rubber rings manufactured with advanced equipment and strict testing. Ideal for hydraulic and oil sealing in demanding conditions.

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Product Information

Overview

Polypac OEM Spec Guide Ring is a professional solution for customers seeking reliable, custom O-rings and rubber rings. Built on Polypac’s 15+ years of sealing expertise, this guide explains materials, manufacturing standards, and why our rings perform in tough hydraulic and oil sealing applications.

Why Choose Polypac

Founded in 2008, Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier. Our custom rubber ring and O-ring factory spans over 10,000 m² with an 8,000 m² production space. We use advanced production and testing equipment and work closely with universities and research institutes to ensure continuous improvement.

Trusted Experience

We started with filled PTFE seals and expanded to a wide range of elastomers. Our long-term partnerships and strict quality controls make Polypac a reliable partner for OEMs and maintenance teams.

Materials and Options

Polypac offers rings in common and specialty materials to match working conditions:

PTFE variants: bronze-filled, carbon-filled, graphite, MoS₂-filled, glass-filled
Elastomers: NBR, FKM (Viton®), FFKM, silicone, EPDM

Material Selection Made Simple

We help you choose the right material based on temperature, chemical exposure, pressure, and wear. If your application has special demands, we provide tailored compounds and designs.

Quality, Testing, and Reliability

All rings are produced under strict process controls and undergo mechanical, dimensional, and material testing. Advanced equipment ensures consistent hardness, tolerance, and sealing performance so you get durable parts that reduce downtime.

Applications

Ideal for hydraulic cylinders, pumps, valves, compressors, and general oil sealing. Polypac rings are built to perform in heavy-duty industrial, automotive, and offshore environments.

Customization & Ordering

We offer custom sizes, compounds, and packaging. Provide your OEM spec, drawing, or sample—our engineering team will recommend the best solution and process your order with fast prototypes and volume production.

Contact & Support

Choose Polypac for proven sealing expertise, advanced manufacturing, and dependable service. Contact our sales team for a quote, material guidance, or technical support.

Detailed display

Question you may concern

How important is surface finish on the metal parts that contact the seal?

Extremely important. A rough surface will abrade and wear out the seal quickly, causing leaks. A finish that is too smooth can prevent a lubricating film from forming. A typical recommended surface finish for dynamic applications is 0.2 to 0.8 μm (8-32 μin) Ra.

Can I reuse a seal?

We strongly recommend never reusing seals. Once compressed and used, a seal takes a "set" and its elastic properties are degraded. Reusing it almost always results in a leak. Always install a new seal during any maintenance or repair.

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.

What is the difference between NBR and FKM materials?

NBR (Nitrile/Buna-N): A general-purpose, cost-effective material with excellent resistance to petroleum-based oils and fuels. It has a standard temperature range of -30°C to +100°C (-22°F to +212°F). FKM (Fluoroelastomer/Viton®): A premium material with excellent resistance to high temperatures (up to 200°C+), chemicals, and oils. It is used in more severe environments but is more expensive than NBR.

Get in Touch

PRODUCTS

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Industrial Technology Co.,Ltd

+86 189 2463 6168

rose@dmsseals.com

No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.

DFA Series Guide Ring | Two-Piece Design for Heavy-Duty Load Support

Polypac’s DFA Series Guide Ring features a two-piece design for heavy-duty load support, ideal as an OEM spec guide ring. Engineered for superior durability, this load bearing ring ensures reliable performance in demanding industrial applications, enhancing equipment lifespan and operational efficiency.

DFA Series Guide Ring | Two-Piece Design for Heavy-Duty Load Support