Jiangsu Kunyuan Rubber & Plastic Technology Co.,Ltd
                                                                                                           
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Nitrile Butadiene Rubber NBR70/80/90 O-Ring Seals - 2mm Thickness, 4-60mm ID, -25°C to 100°C Temperature Range

Price Negotiable
Price: Negotiable
MOQ: 1000
Delivery Time: 5-8 work days
Brand: FOLON.A
Product Description
Nitrile Butadiene Rubber O-Ring Seals
Nitrile Butadiene Rubber (NBR) O-rings are copolymerized from acrylonitrile and butadiene, with acrylonitrile content ranging from 18% to 50%. These seals offer excellent oil resistance and are among the most commonly used rubber seals for hydraulic and oil applications.
Technical Specifications
Parameter Specification
Material Nitrile Butadiene Rubber
Article Numbers NBR70 / NBR80 / NBR90
Shore A Hardness 70±5 / 80±5 / 90±5
Operating Temperature -25°C to 100°C
Working Pressure ≤40 MPa
Standard Thickness 2 mm (custom sizes available)
Inner Diameter Range 4-60 mm (custom sizes available)
Outer Diameter Range 7-75 mm (custom sizes available)
Performance Characteristics
Key Advantages
  • Excellent resistance to oil, water, solvents, and high-pressure oil
  • Low permanent compression set value
  • Superior abrasion resistance and elongation properties
  • Cost-effective sealing solution
Application Limitations
  • Not suitable for polar solvents (ketones, nitrohydrocarbons, MEK, chloroform)
  • Poor weather resistance - requires protection from ozone and UV rays
Application Areas
These NBR O-rings are specifically designed for hydraulic systems and industrial applications including:
  • Fuel tanks and lubricant oil tanks
  • Heavy machinery and press fittings
  • Petroleum hydraulic oil systems
  • Gasoline, water, silicone grease, and silicone oil applications
  • Diester lubricating oil and glycol hydraulic oil systems
Product Gallery
Nitrile Butadiene Rubber O-Ring seals product display Close-up view of NBR O-Ring seals showing material texture Manufacturing facility producing industrial rubber seals

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Jiangsu Kunyuan Rubber & Plastic Technology Co.,Ltd
Location Room 2303, Building 1, No. 218, Tianmu West Road (Kerry Night Inn), Jing'an District, Shanghai
Contact Person Lucy

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