Polypac OEM Spec Guide Ring — Precision Custom Seals
Polypac OEM Spec Guide Ring Solutions
Industry-Leading Manufacturing Capacity
Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier with a 10,000+ m² facility and 8,000 m² factory space. Our production lines and testing equipment are among the most advanced in the industry, ensuring every OEM Spec Guide Ring and custom rubber ring meets strict dimensional and performance tolerances.
Material Expertise and Product Range
From filled PTFE (bronze, carbon, graphite, MoS₂, glass) to elastomers like NBR, FKM, silicone, EPDM, and FFKM, Polypac designs OEM Spec Guide Ring components for broad temperature, chemical, and wear conditions. Our deep material knowledge allows optimized seal selection for hydraulic, pneumatic, and rotating shaft applications.
Custom Design for Special Conditions
When standard parts fail, our R&D teams collaborate with universities and research institutions to engineer bespoke OEM Spec Guide Ring solutions. We offer tailored geometries, compound formulations, and secondary processes to address extreme pressure, abrasive media, high speed, or vacuum environments.
Quality, Testing, and Certification
Polypac's quality systems combine real-time production controls with laboratory testing—hardness, compression set, chemical resistance, and dimensional stability—to guarantee each OEM Spec Guide Ring performs to specification. Long-term reliability testing and traceability are integral to our supply chain for OEM partnerships.
OEM Partnership and Technical Support
As one of China’s largest seal developers, Polypac supports OEMs with specification guides, CAD models, and prototyping to speed product development. Our responsive engineering team helps you choose the right OEM Spec Guide Ring design, material, and finishing to reduce downtime and total cost of ownership.
Why Choose Polypac
Choose Polypac for award-winning seal engineering, scalable production, and customized solutions that keep systems sealed under the harshest conditions. Contact us to specify your OEM Spec Guide Ring and experience tailored performance backed by industry-leading expertise.
OEM Spec Guide Ring Display
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.
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.
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.
Why did my O-ring fail prematurely?
Common causes of O-ring failure include: Chemical Incompatibility: Swelling, softening, or cracking due to fluid exposure. Improper Sizing: Using an incorrect size leads to over-compression or inadequate sealing force. Abrasion: Wear and tear from rough surface finishes or contaminated fluid. Extrusion: The seal is forced into the gap between metal parts under high pressure. Installation Damage: Nicks, cuts, or twists during assembly.
What does "AS568" mean?
AS568 is the Aerospace Standard that defines the dimensions for over 360 standard O-ring sizes. It is the most widely accepted sizing system in North America and globally. An AS568 number (e.g., AS568-214) specifies a precise inside diameter and cross-section.
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