In the world of industrial applications, Buna 90 O-rings play a crucial role in ensuring effective sealing and preventing leaks. These versatile components are widely used in various sectors, including automotive, aerospace, and manufacturing. Understanding their properties and applications is essential for engineers and technicians alike.
This guide delves into the characteristics of Buna 90 O-rings, including their material composition and performance under different conditions. Readers will gain insights into selecting the right O-ring for specific applications, enhancing reliability and efficiency.
Additionally, the guide will explore the manufacturing processes and quality standards prevalent in China, a major hub for O-ring production. By the end, readers will be equipped with the knowledge to make informed decisions regarding Buna 90 O-rings, ensuring optimal performance in their projects.
Comprehensive Guide to Buna-N 90 O-Rings
Buna-N, also known as Nitrile or NBR, is a widely used elastomer in the sealing industry, particularly for O-rings. These O-rings are essential components in various applications, providing reliable sealing solutions in hydraulic systems, automotive parts, and industrial machinery. This guide will delve into the technical features, types, and applications of Buna-N 90 O-rings, highlighting their importance in modern engineering.
Technical Features of Buna-N 90 O-Rings
Buna-N O-rings are known for their excellent oil resistance, mechanical properties, and cost-effectiveness. Below is a comparison table that outlines the key technical features of Buna-N 90 O-rings.
| Feature | Specification |
|---|---|
| Material | Buna-N (Nitrile) |
| Hardness | 90 Shore A |
| Temperature Range | -40°F to +250°F |
| Tensile Strength | 14 MPa (2030 psi) |
| Elongation at Break | 125% |
| Specific Gravity | 1.301 |
| Compression Set | 25% max at 100°C |
| Fluid Resistance | Excellent against petroleum oils |
| Durability | High resistance to wear and tear |
Buna-N O-rings are particularly suitable for high-pressure applications, making them ideal for hydraulic systems and automotive components. Their ability to withstand a wide range of temperatures and pressures ensures reliable performance in various environments.
Types of Buna-N O-Rings
Buna-N O-rings come in various types, each designed for specific applications. The following table compares different types of Buna-N O-rings based on their characteristics and applications.
| Type | Description | Applications |
|---|---|---|
| Standard Buna-N O-Rings | General-purpose O-rings with good oil resistance | Automotive, industrial machinery |
| Buna-N 90 Boss O-Ring | Designed for hydraulic applications with high pressure | Hydraulic systems, pipe fittings |
| Metric Buna-N O-Rings | O-rings available in metric sizes for international use | Various industrial applications |
| Custom Buna-N O-Rings | Tailored O-rings for specific requirements | Specialized machinery and equipment |
Each type of Buna-N O-ring serves a unique purpose, ensuring that engineers and manufacturers can find the right sealing solution for their needs.
Applications of Buna-N 90 O-Rings
Buna-N 90 O-rings are utilized in a wide range of applications due to their versatility and reliability. Common applications include:
– Hydraulic Systems: Used in hydraulic pumps and cylinders to prevent leaks and maintain pressure.
– Automotive Components: Essential in engines, gearboxes, and fuel systems for effective sealing.
– Industrial Machinery: Employed in various machines to ensure proper functioning and prevent fluid leakage.
– Aerospace: Used in aircraft pumps and other critical components where reliability is paramount.
Companies like Ningbo Kaxite Sealing Materials Co., Ltd. and Linde Polymer Technology Co., Ltd. manufacture high-quality Buna-N O-rings, ensuring that they meet industry standards and customer requirements.
Conclusion
Buna-N 90 O-rings are a vital component in many industries, providing effective sealing solutions that enhance the performance and reliability of various systems. Their excellent oil resistance, durability, and versatility make them a preferred choice for engineers and manufacturers alike. As technology advances, the demand for high-quality Buna-N O-rings will continue to grow, ensuring that they remain an essential part of modern engineering.
FAQs
1. What is Buna-N?
Buna-N, also known as Nitrile or NBR, is a synthetic rubber widely used for O-rings due to its excellent oil resistance and mechanical properties.
2. What are the temperature limits for Buna-N 90 O-rings?
Buna-N 90 O-rings can operate effectively within a temperature range of -40°F to +250°F.
3. Where can I purchase Buna-N O-rings?
You can purchase Buna-N O-rings from various suppliers, including unionseal.com and theoringstore.com.
4. Are Buna-N O-rings suitable for high-pressure applications?
Yes, Buna-N 90 O-rings are specifically designed for high-pressure applications, making them ideal for hydraulic systems.
5. How do I choose the right Buna-N O-ring for my application?
Consider factors such as the operating environment, temperature range, pressure requirements, and compatibility with fluids when selecting a Buna-N O-ring.