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Buna-N O Ring Custom Size Available for Machinery
US$0.03
5,000-49,999 Pieces
US$0.02
50,000-99,999 Pieces
US$0.01
100,000+ Pieces
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableMaterial
NBRApplication
IndustryModel NO.
Standard and Non-StandardType
O RingPerformance
High PressureShape
O-RingStandard
StandardProduct Name
Rubber O RingMOQ
5000PCSColor
Customized AcceptedSize
Customized AcceptedService
OEM .ODM .CustomizedSample
AvailabeDelivery Time
7-15daysHardness
40-90 Shore aKeyword
Rubber O RingsLogo
Customized AcceptedCertificate
ISO9001Transport Package
Plastic Bags and CartonsSpecification
otherTrademark
Royal WayOrigin
ChinaHS Code
4016931000Production Capacity
1000000PCS/MonthKey features
Customized Size Accepted: Size can be customized to meet specific machinery requirements.
Customized Color Accepted: Color options are available based on customer customization requests.
OEM and ODM Services: Full OEM and ODM services available for tailored rubber solutions.
High Pressure Performance: Designed for demanding environments with high-pressure applications.
ISO 9001 Certified: Manufacturing base holds ISO 9001:2015 certification for quality assurance.
Fast Delivery Time: Standard delivery time ranges from 7 to 15 days.
Full-Process Inspection: Rigorous inspection system ensures quality from material analysis to final testing.
Superior Oil Resistance: NBR material offers exceptional resistance to petroleum-based oils and fuels.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤6.99h
AI-Powered supplier vetting
SummaryShanghai Qinuo Industry Co., Ltd. is described as a Shanghai-based rubber seal manufacturer serving the oil and gas sector, with additional applications in automobiles, household appliances, and machinery. It provides ODM, OEM, and broad customization services, and reports new product development during the past year. Production resources include assembling, laser marking, milling, precision preforming, cutting, trimming, and vulcanization equipment. Quality controls include uniformly followed finished-product inspection instructions, quality assurance, complaint-handling procedures with records, and raw-material traceability. The supplier reports export sales of 51%–70% and participation in the Calgary Global Oil Show, but no overseas warehouses, showrooms, agents, or branches. Financial records are referenced for 2021–2023, although the provided information does not establish financial strength. Certification holdings, SDK availability, environmental assessment status, and fire-drill status are not...
Supplier typeThe supplier is explicitly described as Shanghai Qinuo Industry Co., Ltd., a professional rubber seal manufacturer providing design and production services for rubber, plastic, and machined parts. Its stated industries include oil and gas, automobiles, household appliances, and machinery equipment.
After-Sales capabilityThe supplier has a clear customer-complaint procedure with followed records and a corrective and preventive action mechanism with records. However, it reports no overseas warehouse, showroom, agent, or branch, and overseas service coverage is listed as zero, limiting evidence of localized after-sales support.
R&D capabilityThe supplier is described as integrating R&D, production, and sales, reports new products during the past year, and offers ODM services. It also reports no available SDK, but SDK availability is not necessary evidence against general product innovation capability.
Production capacityProduction capability is supported by stated manufacturing specialization and equipment including assembling, laser marking, milling, precision preforming, cutting, trimming, and vulcanization machines. Finished-product inspection instructions are uniformly followed, with quality assurance and raw-material traceability also reported.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, indicating broad design-to-production adaptability.
Client casesThe supplier states that it provides OEM services for well-known brands, markets the Royal Way and SHQN brands in the energy industry, and has participated in the Calgary Global Oil Show. These are customer and market references, but no named customer, project scope, or verifiable case details are provided.
Product Q&A
Q:Is NBR the same as Buna-N?
A:
Yes, NBR, Nitrile, and Buna-N are all different names for the same copolymer of Acrylonitrile and Butadiene. It is the most commonly used elastomer for oil-resistant seals.
Q:Can NBR o rings be used in outdoor applications?
A:
NBR has moderate resistance to aging but is sensitive to ozone and UV light. For seals with direct exposure to sunlight or high ozone environments, we recommend protecting the seal or using EPDM or FKM.
Q:What is the difference between 70 Shore A and 90 Shore A?
A:
70 Shore A is the standard hardness for most industrial repairs. 90 Shore A is much harder and is specifically used for high-pressure systems to prevent the seal from being pushed out of the groove.
Q:Are these o rings compatible with gasoline and diesel?
A:
Yes, Buna-N o rings are highly resistant to petroleum-based fuels. However, if the fuel contains high levels of ethanol (like E85), FKM might be required for long-term durability.
Q:What is the typical shelf life of an NBR o ring?
A:
When stored in a cool, dry place away from direct sunlight and electric motors, NBR o rings have a shelf life of approximately 5 to 10 years.
Send Inquiry
*To:
SHANGHAI QINUO INDUSTRY CO., LTD.
SHANGHAI QINUO INDUSTRY CO., LTD.*Content:
Supplier replies will be sent to your registered email
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