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AS568 O RINGS
LIXU
Looking for high-quality AS568 rubber O rings that meet global industrial standards? Our AS568 standard O rings are engineered for superior sealing performance, durability, and compatibility with diverse operating conditions. As a trusted supplier of industrial sealing components, We offer a full range of AS568 rubber O rings in various materials, sizes, and durometers to meet the exact needs of automotive, hydraulic, pneumatic, aerospace, and general industrial applications.
Our AS568 rubber O rings strictly adhere to the AS568 standard (SAE AS568), the most widely recognized specification for O ring sizes in the industrial world. This standard defines the inner diameter (ID), outer diameter (OD), and cross-sectional diameter (CS) of O rings, ensuring interchangeability and compatibility with standard fittings and hardware across industries. Whether you need standard AS568 dash sizes (from -001 to -560) or custom-sized O rings based on AS568 dimensions, we have the capability to deliver precision-engineered sealing solutions that meet your requirements.
The following table lists the common AS568 dash sizes with nominal dimensions in millimeters (mm). For the full size chart, please contact our technical team for detailed documentation.
AS568 Dash Size | Inner Diameter (ID, mm) | Outer Diameter (OD, mm) | Cross-Section Diameter (CS, mm) |
-001 | 0.74 | 2.78 | 1.02 |
-002 | 1.07 | 3.61 | 1.27 |
-003 | 1.42 | 4.48 | 1.53 |
-004 | 1.78 | 5.34 | 1.78 |
-005 | 2.57 | 6.13 | 1.78 |
-006 | 2.90 | 6.46 | 1.78 |
-007 | 3.69 | 7.25 | 1.78 |
-008 | 4.47 | 8.03 | 1.78 |
-009 | 5.29 | 8.85 | 1.78 |
-010 | 6.07 | 9.63 | 1.78 |
We understand that different industrial applications demand O rings with specific material properties. That’s why our AS568 rubber O rings are available in a wide range of high-performance materials, including:
• Nitrile Rubber (NBR): Excellent resistance to oil, fuel, and petroleum-based fluids, ideal for automotive, hydraulic, and industrial applications operating at temperatures from -40°C to 120°C.
• Silicone Rubber (VMQ): Superior high-temperature resistance (-60°C to 230°C) and excellent flexibility, perfect for aerospace, food processing, and medical equipment applications.
• Fluorocarbon Rubber (FKM/Viton®): Exceptional resistance to chemicals, fuels, and high temperatures (-20°C to 200°C), suitable for harsh industrial environments, chemical processing, and aerospace applications.
• Ethylene Propylene Diene Monomer (EPDM): Outstanding resistance to weather, ozone, water, and steam, ideal for outdoor applications, HVAC systems, and water treatment equipment (-50°C to 150°C).
• Neoprene (CR): Good resistance to oil, weather, and ozone, widely used in automotive, marine, and industrial applications (-40°C to 120°C).
Each material is carefully selected and tested to ensure optimal performance, long service life, and resistance to wear, tear, and environmental factors.
Material Type | Hardness (Shore A) | Temperature Range | Key Chemical Resistance | Electrical Insulation | Typical Applications |
Nitrile Rubber (NBR) | 60-90 | -40°C ~ 120°C | Excellent resistance to oil, fuel, petroleum-based fluids; Good resistance to water and mild chemicals | Good | Automotive engines, hydraulic systems, fuel lines, industrial machinery |
Silicone Rubber (VMQ) | 50-80 | -60°C ~ 230°C | Good resistance to ozone, weather, and mild acids/bases; Poor resistance to oil and fuel | Excellent | Aerospace components, food processing equipment, medical devices, high-temperature seals |
Fluorocarbon Rubber (FKM/Viton®) | 70-90 | -20°C ~ 200°C | Exceptional resistance to chemicals, solvents, fuels, acids, and bases | Good | Chemical processing, harsh industrial environments, aerospace fuel systems, automotive exhaust systems |
Ethylene Propylene Diene Monomer (EPDM) | 60-90 | -50°C ~ 150°C | Outstanding resistance to ozone, weather, water, steam, and alkaline solutions; Poor resistance to oil and fuel | Excellent | HVAC systems, water treatment equipment, outdoor machinery, steam pipes |
Neoprene (CR) | 60-90 | -40°C ~ 120°C | Good resistance to oil, weather, ozone, and mild chemicals; Fair resistance to acids | Good | Automotive hoses, marine equipment, industrial gaskets, outdoor seals |
Our AS568 standard O rings are designed to deliver reliable sealing performance in the most demanding conditions.
Key features and benefits include:
• Precision Sizing: Strict compliance with AS568 dimensions ensures perfect fit and interchangeability with standard components, reducing installation time and maintenance costs.
• Superior Sealing Performance: High-quality rubber materials and advanced molding techniques create a tight, leak-proof seal, preventing fluid and gas leakage in hydraulic, pneumatic, and other systems.
• Exceptional Durability: Resistant to abrasion, compression set, and environmental factors (oil, chemicals, weather, ozone), ensuring long service life and reduced replacement frequency.
• Wide Temperature Range: Available in materials that perform reliably from extreme low temperatures (-60°C) to high temperatures (230°C), suitable for diverse operating environments.
• Versatile Applications: Compatible with automotive, aerospace, hydraulic, pneumatic, chemical processing, food and beverage, medical, and general industrial equipment.
• Cost-Effective Solutions: Competitive pricing without compromising on quality, combined with bulk order discounts, helps you reduce overall production costs.
AS568 rubber O rings are the go-to sealing solution for a wide range of industrial applications, thanks to their standardization, versatility, and reliable performance. Common applications include:
• Automotive Industry: Engine components, transmission systems, fuel systems, hydraulic brakes, and cooling systems.
• Aerospace & Defense: Aircraft hydraulic systems, fuel lines, and environmental control systems.
• Hydraulic & Pneumatic Systems: Cylinders, valves, pumps, hoses, and fittings.
• Chemical Processing: Pipes, tanks, and valves handling corrosive chemicals and solvents.
• Food & Beverage Industry: Processing equipment, packaging machinery, and sanitary systems (using food-grade materials).
• Medical Equipment: Diagnostic devices, surgical instruments, and pharmaceutical processing equipment (using medical-grade materials).
• HVAC & Water Treatment: Pumps, valves, and piping systems for heating, ventilation, air conditioning, and water treatment.
When it comes to AS568 rubber O rings, quality, reliability, and customer satisfaction are our top priorities.
Here’s why you should choose us as your trusted supplier:
• Strict Quality Control: Every batch of AS568 O rings undergoes rigorous testing, including dimensional accuracy checks, material performance tests, and leak tests, to ensure compliance with industry standards and customer requirements.
• Extensive Product Range: We offer a full range of AS568 standard sizes and materials, as well as custom O rings tailored to your specific needs.
• Experienced Team: Our team of engineering and technical experts has years of experience in the sealing industry, providing professional advice and support to help you select the right O rings for your application.
• Timely Delivery: We have a global supply chain and efficient production processes, ensuring fast and reliable delivery of your orders, even for bulk quantities.
• Competitive Pricing: We offer competitive prices without compromising on quality, helping you reduce costs and improve your bottom line.
• Excellent Customer Service: We are committed to providing exceptional customer service, from inquiry to after-sales support, ensuring a smooth and hassle-free experience.
Our custom sealing solutions are designed to meet your unique application requirements. The entire process is streamlined to ensure efficiency, precision, and on-time delivery, following these 5 key steps:
1. Requirement Consultation & Information Collection: Contact our technical team with your custom needs, including application scenarios (temperature, pressure, chemical environment), required dimensions (ID/OD/CS or groove dimensions), material preferences, quantity, and delivery time. Our experts will provide initial technical advice and confirm the necessary parameters.
2. Design & Engineering Verification: Based on the collected information, our engineering team will design the custom O ring, conduct compatibility analysis (material vs. operating conditions) and dimensional accuracy checks. We will provide a detailed design drawing and performance simulation report for your approval.
3. Prototype Production & Testing: After design approval, we will produce a small batch of prototypes using advanced molding technology. The prototypes will undergo rigorous testing, including dimensional measurement, hardness testing, sealing performance testing, and environmental resistance testing, to ensure they meet your requirements.
4. Mass Production & Quality Control: Once the prototype is confirmed, we will start mass production. During production, each batch is subject to strict quality control, with random inspections of dimensions, material properties, and sealing performance to maintain consistency and reliability.
5. Delivery & After-Sales Support: We will arrange timely delivery according to the agreed schedule, with complete documentation including material certificates, test reports, and installation guidelines. Our after-sales team will follow up to ensure the custom O rings perform well in your application, and provide technical support for any issues.
6. Design & Engineering Verification: Based on the collected information, our engineering team will design the custom O ring, conduct compatibility analysis (material vs. operating conditions) and dimensional accuracy checks. We will provide a detailed design drawing and performance simulation report for your approval.
7. Prototype Production & Testing: After design approval, we will produce a small batch of prototypes using advanced molding technology. The prototypes will undergo rigorous testing, including dimensional measurement, hardness testing, sealing performance testing, and environmental resistance testing, to ensure they meet your requirements.
8. Delivery & After-Sales Support: We will arrange timely delivery according to the agreed schedule, with complete documentation including material certificates, test reports, and installation guidelines. Our after-sales team will follow up to ensure the custom O rings perform well in your application, and provide technical support for any issues.
9. Mass Production & Quality Control: Once the prototype is confirmed, we will start mass production. During production, each batch is subject to strict quality control, with random inspections of dimensions, material properties, and sealing performance to maintain consistency and reliability.
We support custom O rings with diameters up to 600mm (or larger with special welding technology) and can use materials certified to FDA, NSF, NORSOK, NACE, and other industry standards to meet the stringent requirements of different industries.
Whether you need standard AS568 rubber O rings or custom sealing solutions, Lixu Rubber are always here to help.
Contact us today to discuss your requirements, request a quote, or get technical support from our experts. We look forward to partnering with you and providing the high-quality AS568 O rings you need for your industrial applications.
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