Product Introduction
Yiho Polytek’s Buna N Rubber Rings Size offers the ultimate solution for industrial sealing applications. Made from NBR, our Buna N O rings are ideal for environments that demand high levels of oil resistance, abrasion resistance, and temperature tolerance. These O rings are widely used in petroleum, automotive, chemical, and food processing industries due to their excellent durability and long-term performance.
Designed to offer reliable seals, the Buna N Rubber Rings are perfect for sealing applications that require durability in harsh conditions, including high pressure, high temperature, and chemical exposure. Whether you’re sealing pumps, valves, or other machinery, Yiho Polytek’s Buna N O rings deliver excellent performance.

Buna N Rubber Rings Size Table
The Buna N Rubber Rings Size is engineered to offer various sealing solutions across a wide range of industrial applications. With superior material properties, these O rings meet specific sealing needs.
| Features | Benefits |
|---|---|
| Oil Resistance | Excellent resistance to oils and fuels, ideal for petroleum industries |
| Wear Resistance | Provides long-lasting durability in high-stress applications |
| Temperature Resistance | Stable performance in temperatures from -30°C to 120°C |
| Abrasion Resistance | Resists wear and tear, perfect for continuous mechanical movement |
| Cost-Effective | Economical alternative to other high-performance seals |
| Customization | Available in various sizes, hardness, and colors for specific needs |
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Materials & Sourcing
Yiho Polytek manufactures Buna N Rubber Rings Size using high-quality NBR (Nitrile Butadiene Rubber), which is known for its superior properties:
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Oil Resistance: NBR provides excellent resistance to mineral oils, lubricating oils, and greases, making it perfect for petroleum and automotive applications.
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Abrasion Resistance: Excellent durability in high-wear environments, ideal for machinery seals.
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Temperature Resistance: NBR offers a temperature range of -30°C to 120°C, making it suitable for a variety of industrial uses.
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Chemical Resistance: NBR is resistant to low gas permeability, greases, and certain chemicals, making it an excellent choice for chemical processing.
We ensure that all our materials are sourced responsibly and meet the highest quality standards for durability and reliability.
Structure & Durability
The structure of our Buna N Rubber Rings Size is designed for maximum durability:
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High Pressure Resistance: Designed to withstand high-pressure environments without failure, maintaining an effective seal.
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Chemical & Temperature Resistance: Performs well under extreme temperatures and harsh chemicals, making it ideal for chemical plants and petroleum environments.
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Wear Resistance: Our Buna N O rings are engineered for long-lasting durability, even under constant friction and mechanical wear.
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Aging Resistance: NBR retains its sealing capabilities over time, ensuring minimal degradation due to environmental exposure.
These features ensure that our O rings maintain reliable sealing performance across various industries, even in the most demanding conditions.
Capacity & Use Scenarios
The Buna N Rubber Rings Size provides reliable sealing solutions for a wide range of applications:
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Petroleum Industry: Seals for pumps, valves, and pipes that transport oils and chemicals.
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Automotive Industry: Seals in engines, transmissions, and other critical automotive components.
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Chemical Processing: O rings used in chemical reactors, storage tanks, and pipelines.
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Food & Medical: FDA-approved O rings used in food processing machinery and medical devices requiring high levels of hygiene and safety.
Our O rings are designed to meet the sealing needs of industries with high-performance requirements.

Interior Structure Overview
Our Buna N Rubber Rings are designed to provide a tight and secure seal under all operational conditions. The O rings are available in a variety of sizes, materials, and hardness to meet the specific sealing needs of your equipment. The material selection ensures that the O rings perform effectively under high pressure and extreme temperatures, ensuring a long-lasting seal that minimizes leaks and operational issues.
About Yiho Polytek
Founded in 1994, Yiho Polytek has become a leading manufacturer of Buna N Rubber Rings in China. We specialize in providing custom sealing solutions for a variety of industries, including automotive, petroleum, chemical, and food processing. Our factory is ISO 9001:2008 certified, ensuring that every product we produce meets the highest standards of quality and performance.
With over 25 years of experience, we offer both OEM and ODM services to meet the unique needs of our global clients. Yiho Polytek is committed to providing high-performance sealing solutions that exceed industry standards.
Client Case Studies
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U.S. Automotive Manufacturer: Annual supply of custom Buna N O rings for high-performance automotive sealing applications.
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European Chemical Plant: Custom seals for chemical processing that withstand aggressive substances and extreme temperatures.
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Medical Equipment Supplier: Medical-grade Buna N O rings used in sterile medical devices that require precision and reliability.
Our products are shipped to North America, Europe, and Asia, ensuring compliance with international trade and retail standards.
FAQ
Q1: Can I put my logo on the O Rings?
A1: Yes, we can print or emboss your logo on the O rings. Please provide your specifications in advance, and we will customize accordingly.
Q2: What global markets do you supply?
A2: We supply O rings to North America, South America, Europe, Middle East, and more.
Q3: Can I order customized O rings?
A3: Yes, we offer customized O rings in different materials, sizes, colors, and hardness. Let us know your requirements, and we will provide a tailored solution.
Q4: What is your delivery time?
A4: Delivery takes 7-15 days after payment, depending on order size and customization.
Q5: Can I order a sample?
A5: Yes, we offer samples for in-stock products, and they can be delivered within 3 days.


