Products Description
What is an O-Shaped Rubber Seal Ring?
O-Shaped Rubber Seal Rings, also known as O-Rings, provide sealing by flexing elastically when compressed between two surfaces. Once inserted between two mating parts, the O-ring compresses and conforms to the surfaces, forming a tight seal that prevents the leakage of liquids or gases.
The sealing performance of O-Rings depends on the material elasticity, hardness, and compression ratio during installation. Typically, O-Shaped Rubber Seal Rings are made of high-quality, chemically resistant rubber compounds, ensuring durability under pressure, temperature fluctuations, and various working environments. The circular cross-section allows uniform distribution of pressure across the contact surface, enhancing sealing reliability.

Advantages of O-Shaped Rubber Seal Rings
Excellent Sealing Performance
Prevents leakage of liquids or gases, ensuring stable operation of pumps, valves, and machinery.
Durable and Chemical Resistant
Made from high-quality rubber materials such as NBR, FKM, EPDM, these O-Rings withstand high pressures, oils, and chemicals.


Easy Installation and Replacement
Simple circular design allows quick assembly, reducing downtime and maintenance costs.
Wide Application Range
Adaptable to different pressures, temperatures, and working conditions
Material Comparison Table
|
Feature / Material |
NBR |
FKM (Viton®) |
EPDM |
Silicone |
HNBR |
|
Hardness (Shore A) |
30–90 |
50–90 |
40–90 |
5–90 |
50–90 |
|
Temp Range |
-40°C ~ +120°C |
-20°C ~ +250°C |
-50°C ~ +150°C |
-60°C ~ +230°C |
-40°C ~ +150°C |
|
Key Features |
Oil/fuel/grease resistance; good mechanical properties |
Heat, chemical, oil resistance |
Weather, ozone, water, steam resistance |
Flexibility, wide temp, food-grade options |
Heat, oil, chemical resistance, aging resistance |
|
Advantages |
Affordable, versatile, good wear resistance |
Excellent high-temp and chemical resistance |
Excellent outdoor & water system performance |
Excellent low/high temp performance, food-safe |
Superior durability and mechanical properties |
|
Limitations |
Poor ozone/weather resistance |
Expensive, harder to process |
Poor oil/fuel resistance |
Low mechanical strength, expensive |
Cost higher than NBR |
|
Typical Applications |
Automotive seals, hydraulic systems, general machinery |
High-temp automotive, aerospace, chemical industry |
Plumbing, water systems, HVAC, outdoor sealing |
Food & beverage, medical, electrical insulation, extreme temp |
Automotive, industrial hydraulics, oil & gas sealing |
O Ring Applications

They provide reliable sealing performance without deformation or leakage.
Typical Applications:
Plumbing systems: Prevent water leakage in joints and pipes.
Machinery & equipment: Used for hydraulic and pneumatic sealing.
Automotive parts: Suitable for engine, fuel, and brake systems.
Home & garden tools: Replacement parts for Bunnings machinery and DIY projects.
Why Choose US ?

1.10,000+ Molds Available – Extensive mold library to meet diverse size and material requirements.
2.No MOQ, Starts from One Piece – Flexible customization from sample testing to bulk production.
3. In-Stock Inventory - Standard sizes in stock, ensuring quick shipment, Fast Global Delivery
Focus on Quality
•Precise inspection, zero-defect quality, ensuring both delivery time and quality.
•Meets the 125/1008H high-temperature aging test requirements of the new energy industry;
•Withstands commercial cleaner (Alcohols, Alkalis, Oils) test requirements.

Packing & Delivery

|
MOQ |
1 pcs |
|
Lead Time |
- In stock: Shipped within 3 days |
|
Port |
China Xiamen |
|
Shipping Methods |
Express (DHL, FedEx, UPS), Air, or Sea |
|
Sample Policy |
Samples available; customer should pay freight cost |
Qualification Certificate

Contact US:
Xiamen Best Seal Imp and Exp Co.,Ltd
Tel: +86-592-5782315
Mob: +8618950159396
Email: yunying2@bestsealhk.com
Add: Unit 522-525, Gaodian Road 6#, Huli District, Xiamen, China
Why choose us?
- Our Solid O-ring products are widely recognized for their quality and effectiveness.
- With the development concept of openness and innovation, the company introduces domestic and foreign R&D design systems, production equipment, and management concepts.
- We are committed to providing our customers with reliable and durable Solid O-ring products.
- Our company has accumulated a wealth of practical experience in the field of O Shaped Rubber Seal Ring. We firmly believe that experience and innovation are valuable assets and the most powerful core competitiveness. We have been adhering to and maintaining close cooperation with peers in the industry, relying on a professional customer service system and perfect high-quality engineering and technical team to serve customers.
- We are dedicated to providing our customers with top-quality Solid O-ring products and services.
- The company always pays attention to the market trend, in order to determine the company's development direction, and is committed to building the company into a leader in the industry.
- Our Solid O-ring products come in a variety of sizes and materials, tailored to suit our customers' needs.
- We continue to develop and design superior quality products for both our old and new customers and achieve a win-win prospect for our clients as well as us for O Shaped Rubber Seal Ring.
- We are a reliable and trustworthy source for all your Solid O-ring needs.
- We invite talents from all parties to join our big family to inject new impetus into the company's development.
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