Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568

Product Details
Customization: Available
Material: Customized
Application: Multipurpose Use
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  • Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
  • Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
  • Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
  • Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
  • Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
  • Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
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  • Overview
  • Product Description
  • Specification
  • Application Photos
  • After Sales Service
  • Company Profile
  • FAQ
Overview

Basic Info.

Model NO.
AS-029/37.82*1.78/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

Packaging & Delivery

Package Size
6.00cm * 6.00cm * 6.00cm
Package Gross Weight
2.000kg

Product Description

Product Description
Reliable Sealing Effect NBR O Ring Wide Applications for Diverse Applications AS-029/37.82*1.78/AS-568 /NBR
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 37.82*1.78 as per the AS-029 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:  automotive engines, fuel systems, and transmission systems
2.Industrial Machinery: hydraulic presses, pumps, and compressors
3.Aerospace Field: fuel tanks and hydraulic actuators.
4.Plumbing and Water Systems:  faucets, valves, and pipe joints

Key Configurations
Material:
NBR (Nitrile Butadiene Rubber)
FKM-90 (Fluorocarbon Rubber)
Standards Compliance:
AS-112
AS-568
Precision Level:
ID ±0.1 mm or ±0.004 inches for smaller sizes). The tolerance for the CSD could also have a specific allowable variation, say around ±0.05 mm or ±0.002 inches for common sizes.
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
Application Photos
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
After Sales Service
Standard Warranty: 12 months
Timely Response and Technical Support: We have established a 24/7 customer service hotline. 
 
On-site Maintenance and Repair: In some cases where the problem cannot be solved remotely, our after-sales service team will dispatch technicians with professional tools and spare parts to the customer's site.
Regular Follow-up and Customer Feedback Collection: After solving the customer's problem, we will conduct regular follow-up to understand whether the product is working normally and whether the customer is satisfied with our service. We also actively collect customer feedback and suggestions, which will be used as an important reference for us to continuously optimize our products and services, further improving the overall customer experience.
Company Profile
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
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 seals prodcuts with over 16years of expertise. Certified with ISO 9001, CE,  we export to 50+ countries, offering reliable products and services backed by R&D innovation and strict quality control.
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
Why Choose Us?
Other Products
OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions
HNBY RUBBER SEAL 
SIL SILICON RUBBER SEAL
EPDM RUBBER SEAL
METAL RUBBER SEA 
Reliable Sealing Effect NBR O Ring Wide Applications as-029/37.82*1.78/as-568
FAQ
Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.
Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.
Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.

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