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Industrial O-Ring: Buna-N, Polycarbonate, 2.491" ID x 8.018" OD

Expert Overview

This robust industrial O-ring, crafted from Buna-N and polycarbonate, offers superior sealing in demanding environments. Its precise dimensions ensure reliable performance and leak prevention in critical applications.

StandardDIN 933
MaterialPolycarbonate
FinishAnodized
GradeN/A
Inside Diameter2.491"
Outside Diameter8.018"
Cross Section0.108"

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this industrial O-ring features an Inside Diameter of 2.491 inches, an Outside Diameter of 8.018 inches, and a Cross Section of 0.108 inches. The Buna-N material provides excellent resistance to oils, fuels, and hydraulic fluids, while the polycarbonate composition enhances its structural integrity and resistance to certain chemicals. This combination makes it ideal for static and dynamic sealing in a wide range of industrial machinery, automotive components, and fluid power systems where durability and reliable sealing are paramount.

🧊 Download 3D CAD Model (.STEP)

Verified Global OEM Partners

This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.

TrelleborgEst. 1905
Sweden🇸🇪
"Engineered polymer solutions."
Market Rank
🏆 #1 Engineered Polymers
Industry Approvals
🚀 Aerospace & Subsea Approved
Warranty & Support
🛡️ High-Performance Guarantee
Green Manufacturing
🌱 Blue Dimension ESG
Certified:ISO 9001, ISO 14001
GarlockEst. 1887
USA🇺🇸
"High-performance fluid sealing."
Market Rank
🏆 Premium Fluid Sealing Leader
Industry Approvals
🚀 Nuclear & Pharma Approved
Warranty & Support
🛡️ Zero-Leak Guarantee
Green Manufacturing
🌱 Sustainable Materials
Certified:ISO 9001, FDA, NSF
FreudenbergEst. 1849
Germany🇩🇪
"Global sealing technologies."
Market Rank
🏆 Top Global Sealing Tech
Industry Approvals
🚀 Audi & Mercedes OEM
Warranty & Support
🛡️ Global Engineering Support
Green Manufacturing
🌱 Climate Neutral 2045
Certified:IATF 16949, ISO 14001

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:N/A

Installation Procedure

1. Ensure mating surfaces are clean, dry, and free from debris. 2. Carefully lubricate the O-ring with a compatible lubricant if recommended for the application. 3. Gently compress the O-ring into its groove, avoiding any pinching or stretching.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°C)
Thermal Expansion
Typical for Material Class

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
StandardVaries by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Over-stretching or deforming the O-ring during installation.Install the O-ring with minimal stretching, allowing it to seat naturally in its groove.
Using incompatible lubricants or cleaning agents.Always consult material compatibility charts to ensure lubricants and cleaning agents do not degrade the Buna-N or polycarbonate.

Common Applications

  • Hydraulic Systems
  • Pneumatic Cylinders
  • Fuel Systems
  • Automotive Seals

⚠️ Engineering Warnings

  • Not suitable for applications involving strong oxidizing agents or ketones.
  • Operating temperature range must be within the material's limitations to prevent degradation.

Alternative Products to Consider

Premium Sealing equivalentHigher corrosion resistance (316 SS)
Economy Sealing optionLower cost for non-critical indoor applications

Frequently Asked Questions

Q: What is the Industrial O-Ring, Buna-N made from?

A: This Industrial O-Ring, Buna-N is manufactured from Polycarbonate.

Q: What are the main applications?

A: Hydraulic Systems, Pneumatic Cylinders, Fuel Systems, Automotive Seals.

Technical Schematic

O-RING SEAL DIAGRAMAS568 Standard ConfigurationID = 2.491"CS = 0.108"SPECIFICATIONSSize: -214

Torque Specifications

⚡ UNIT CONVERTER

Conversion factor: 1 ft-lb ≈ 1.356 Nm

Verified Compatibility

StatusMating ComponentStandardTorque SpecEngineering Notes
No verified compatibility data found for this component.