Reliable Rubber Seal 21.89*2.62 Premium O Ring Seal for Customized Industrial Solutions

• Customization: Available
• Material: Customized
• Application: Multipurpose Use
• Model NO.: AS-118/21.89*2.62/AS-568
• Type: Stationary Seal
• Performance: High Pressure
• Shape: Standard and Customized
• Standard: Standard
• Color: Customized Color
• OEM/ODM: Yes
• Size: Customized Size
• Operational Temperature Range: -40~+100ºC
• Transport Package: Standard Packing
• Specification: Customized
• Trademark: DZD
• Origin: China
• Package Size: 6.00cm * 6.00cm * 6.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

Reliable Rubber Seal 21.89*2.62 Premium O Ring Seal for Customized Industrial Solutions 

Our Custom High Precision O Ring Seals are crafted with top-notch quality materials, specifically featuring NBR (Nitrile Butadiene Rubber) for this particular model. The precision in manufacturing these O ring seals is of the highest standard, ensuring excellent performance and reliability. They are designed to meet the exacting requirements of diverse applications. With specific dimensions of 21.89*2.62 as per the AS-118 standard and conforming to the AS-568 standard, these seals are also available in FKM-90 variant for different usage scenarios. The NBR material offers good resistance to oil, fuel, and other common chemicals, making it a versatile choice for a wide range of industrial and mechanical settings.

Specification

Material	Nitrile Butadiene Rubber (NBR)	Fluororubber (FKM)
Color	Red, Black, Blue, etc. Customized
Size	Standard&Customized
Density	Typically 0.95-1.25 g/cm³, depending on filler content (common grades: ~1.0-1.1 g/cm³).	Usually 1.8-2.0 g/cm³  (high density due to fluorine content).
Hardness	Typically 40 - 90 Shore A, with common industrial grades at 60 - 80 Shore A	Usually 50 - 90 Shore A, with high - performance grades often at 70 - 85 Shore A.
Temperature	-40°C to +100°C (-40°F to +212°F)	-20°C to +200°C (-4°F to +392°F)
Tolerance	Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm	Tolerance Class for Cross-Section Diameter (CSD)AS568 Class: - Small sizes: ±0.05-0.13 mm - Medium sizes: ±0.13-0.25 mm - Large sizes: ±0.25-0.41 mm Tolerance Class for Inner Diameter (ID) - Small sizes: ±0.13-0.38 mm - Medium sizes: ±0.38-0.76 mm - Large sizes: ±0.76-1.52 mm
Advantages	1. Excellent resistance to mineral oils, fuels, and hydraulic fluids. 2.Good mechanical strength and abrasion resistance. 3.Cost-effective and widely available. 4.Versatile for moderate temperature applications (-40°C to +120°C).	1.Exceptional resistance to high temperatures (+200°C, up to +230°C for premium grades). 2.Outstanding chemical resistance to acids, solvents, and fuels. 3.High durability in aggressive environments (e.g., chemicals, aerospace). 4.Long service life in harsh conditions.
Application	Hydraulic systems; Fuel systems; Automotive engines; Oil pumps; Other general industrial; equipment with oil-based media.	High-temperature environments; Automotive engines; Turbochargers, gaskets; Chemical processing plants; Aerospace seals; Applications of aggressive chemicals or fuels.
Storage& Maintenance	1. Regular Inspection: Periodically check the O-ring for signs of wear, such as abrasion on the surface, and aging, which may present as cracking, hardening, or discoloration.  2. Timely Replacement: Replace O-rings immediately if they are damaged, deformed, or show signs of aging. A defective O-ring can no longer ensure proper sealing performance. 3. Exposure Avoidance: Prevent O-rings from being exposed to harsh environments for extended periods.

Applications

1. Automotive Industry: Ideally designed for automotive engines, fuel systems, and transmission systems, these seals deliver peak performance.

2. Industrial Machinery: Perfect for hydraulic presses, pumps, and compressors, these seals ensure smooth and efficient machinery operation.

3. Aerospace Field: Indispensable for fuel tanks and hydraulic actuators, providing unmatched safety and dependability.
4. Plumbing and Water Systems: Excellently suited for faucets, valves, and pipe joints, offering a leak-proof seal.

Key Configurations

Material:

NBR (Nitrile Butadiene Rubber)
FKM-90 (Fluorocarbon Rubber)
Standards Compliance:

AS-112
AS-568
Precision Level:

Our products exhibit an exceptional level of precision, with an ID tolerance of ±0.1 mm or ±0.004 inches for smaller sizes. The CSD maintains a specific allowable variation, around ±0.05 mm or ±0.002 inches for standard sizes, guaranteeing a flawless fit and function.

Application Photos

After Sales Service

Standard Warranty: Experience peace of mind with our all-inclusive 12-month warranty, showcasing our dedication to quality and customer satisfaction.

Timely Response and Technical Support: We are proud to offer a 24/7 customer service hotline, ensuring that our knowledgeable team is always prepared to address any queries or concerns promptly.

On-site Maintenance and Repair: For issues that require hands-on assistance, our expert after-sales service team is ready to dispatch skilled technicians equipped with professional tools and spare parts directly to your location, delivering swift and effective solutions.

Regular Follow-up and Customer Feedback Collection: Our dedication to excellence extends beyond problem resolution. We conduct regular follow-ups to ensure your product functions optimally and that you are completely satisfied with our service. We actively collect customer feedback and suggestions, which are invaluable for the continuous enhancement of our products and services, ultimately elevating the overall customer experience.

Company Profile

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd.

Shanghai Dongzhiding Rubber and Plastic Technology Co., Ltd. is a leading Chinese manufacturer of O-ring seal rubber products, backed by over 16 years of industry expertise. With ISO 9001 and CE certifications, we export to more than 50 countries, consistently delivering reliable products and services driven by R&D innovation and stringent quality control.

Why Choose Us?

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FAQ

Q: What's the lead time for orders?
A: Our standard models are ready for dispatch in a remarkable 15–30 days. For customized solutions, we promise a quick delivery timeline of 30–45 days, meticulously tailored to meet your unique requirements.

Q: Do you provide after-sales service overseas?
A: Absolutely, we proudly extend comprehensive after-sales services through our strategically located partnered service centers across key international regions, ensuring you receive seamless support no matter where you are.

Q: Can I request a customized bucket size?
A: Certainly! We excel in providing bespoke attachments crafted to your exact specifications, guaranteeing a flawless fit and superior performance tailored to your needs.

Q: What documents do you provide for export?
A: We furnish a complete export package including crucial documents such as a Commercial Invoice, Packing List, Bill of Lading, Certificate of Compliance (COC), and more, ensuring smooth and hassle-free international transactions.

Q: How do I place an order?
A: Simply contact us via email or phone to obtain a personalized quote. Once you are satisfied, confirm your order with a Purchase Order (PO), and we will manage everything else with the utmost efficiency.