In recent years, the 6×2 oring has gained significant attention in various industries, particularly in China. This essential component plays a crucial role in ensuring effective sealing and preventing leaks in numerous applications, from automotive to aerospace. Understanding its specifications and applications is vital for engineers and manufacturers alike.
This guide delves into the intricacies of 6×2 orings, exploring their materials, manufacturing processes, and performance characteristics. Readers will gain insights into selecting the right oring for specific applications, enhancing product reliability and efficiency.
Additionally, the guide will cover best practices for installation and maintenance, ensuring optimal performance and longevity of orings. By the end, readers will be equipped with the knowledge to make informed decisions and improve their operational processes in various sectors.
A Comprehensive Guide to O-Rings 6×2 in China
O-rings, simple yet crucial components, are ubiquitous in various industries. This guide delves into the world of 6×2 O-rings, focusing on their manufacturing and application within China, a global hub for O-ring production. We will explore their technical specifications, different material types, and prominent Chinese manufacturers.
Understanding O-Ring Basics
An O-ring is a toroidal (doughnut-shaped) seal used to prevent leakage of fluids or gases. The “6×2” designation refers to its dimensions: 6mm inner diameter (ID) and 2mm cross-section (CS). The outer diameter (OD) is calculated as ID + 2*CS, resulting in an OD of 10mm. Companies like Savvy Rubber (savvyrubber.com) offer a wide variety of sizes and materials. They highlight the importance of selecting the appropriate material based on the application’s specific conditions.
Technical Features of O-Rings
Several factors determine an O-ring’s performance. These include its material, hardness, and the manufacturing process. The following table compares key technical features:
| Feature | Description | Importance |
|---|---|---|
| Material | Rubber (NBR, FKM, Silicone, EPDM, etc.), metal, or other polymers | Determines chemical resistance, temperature range, and overall durability. |
| Hardness (Shore A) | Measured using a durometer; typically ranges from 40 to 90. | Impacts installation ease, resilience to compression set, and resistance to extrusion. |
| ID, OD, CS | Inner diameter, outer diameter, and cross-section width; crucial for proper fit. | Ensures a proper seal within the application’s groove. |
| Tolerance | Precision of dimensions; tighter tolerances mean better sealing performance. | Critical for reliable sealing, especially in high-pressure applications. |
| Manufacturing | Molding (injection, compression), extrusion; affects surface finish and precision. | Influences the O-ring’s dimensional accuracy, surface finish, and overall quality. |
Different Types of O-Rings
O-rings are available in various materials, each suited for specific applications. The choice of material depends on factors like temperature, chemical exposure, and pressure. The following table illustrates some common types:
| Material | Temperature Range (°C) | Chemical Resistance | Applications | Cost | Manufacturer Examples |
|---|---|---|---|---|---|
| NBR | -40 to 120 | Good oil resistance | General purpose, automotive | Low | Savvy Rubber, Hongjie Rubber Seal (hongjiesealing.com) |
| FKM | -20 to 200 | Excellent chemical resistance | High-temperature applications, chemicals | High | Krones (shop.krones.com), Haisun Rubber (www.orings-china.com) |
| Silicone | -70 to 220 | Good temperature resistance | Medical, food industry, high-temperature applications | Medium | Hongju Silicone (hongjusilicone.com), Haisun Rubber |
| EPDM | -40 to 150 | Good weather resistance | Outdoor applications, water systems | Medium | Savvy Rubber, Hongju Silicone |
Chinese O-Ring Manufacturers
China boasts numerous O-ring manufacturers, catering to diverse needs. Companies like Hongju Silicone specialize in silicone rubber products, including O-rings. They offer both standard and customized sizes and emphasize their low minimum order quantities (MOQs). Haisun Rubber focuses on precision O-rings with tight tolerances, highlighting their IATF16949 certification and cleanroom facilities. Krones, while not solely an O-ring manufacturer, offers a wide range of spare parts, including O-rings, through its online shop. Savvy Rubber emphasizes its extensive mold inventory, enabling rapid delivery of various O-ring types.
Conclusion
The 6×2 O-ring market in China is vibrant and competitive. Selecting the right O-ring involves careful consideration of material, dimensions, and technical specifications. The numerous manufacturers offer a wide range of options, from standard to highly customized products, catering to diverse industrial applications.
FAQs
1. What is the difference between NBR and FKM O-rings?
NBR O-rings offer good oil resistance at a lower cost but have a limited temperature range. FKM O-rings excel in chemical and high-temperature resistance but are more expensive.
2. How do I choose the right O-ring hardness?
O-ring hardness (Shore A) affects installation and performance. Lower hardness is easier to install but may be prone to damage. Higher hardness is more durable but harder to install. The appropriate hardness depends on the application’s specific pressure and operating conditions.
3. What are the standard sizes for O-rings?
O-rings adhere to various international standards (AS568, DIN, JIS, ISO, etc.), defining their ID, OD, and CS. The “6×2” designation is one example, specifying a 6mm ID and 2mm CS.
4. Where can I find reliable O-ring suppliers in China?
Numerous reputable O-ring manufacturers operate in China. Some examples include Savvy Rubber, Hongju Silicone, Haisun Rubber, and others. Consider factors like certifications, production capabilities, and customer service when selecting a supplier.
5. What are the typical lead times for O-ring orders in China?
Lead times vary depending on the manufacturer, order quantity, and whether the O-rings are standard or custom-made. Some suppliers, such as Savvy Rubber, emphasize rapid delivery thanks to their extensive inventory. However, custom orders may require longer lead times.