Resilon® Polyurethane O-Rings (568) | Product Series

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Resilon® Polyurethane O-Rings (568)

Resilon® Polyurethane O-Rings (568)

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Resilon® polyurethane O-rings for hydraulic and pneumatic applications, static and dynamic AS568B specification size O-ring grooves (568).

Technical Specifications

  • Inside Diameter: 0.070 to 7.484 inch
  • Cross Section Width: 0.07 inch, 0.103 inch, 0.139 inch, 0.21 inch
  • Polymer Material Options: Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®)
  • Minimum Operating Temperature: -65 °F
  • Durometer: 90 to 92 Shore A, 60 Shore D
  • Maximum Operating Temperature: 275 °F
  • For Fluid Type: Oil, Water, Acids, Bases, Broad Range, Ozone
  • Industry: Industrial
  • Specifications Met: AS568B Sizes
  • Region of Origin: North America
  • Color: Tan, Blue

Full Product Description

Parker’s Resilon® 568 Profile polyurethane O-rings provide the material advantages of Resilon polyurethanes in standard O-ring sizes.  The high extrusion resistance of the Resilon family of polyurethane materials eliminates the need for a back-up in many hydraulic applications, thereby simplifying installation and reducing groove width.

 

Resilon’s unmatched temperature rating makes it suitable in applications where other urethanes fail.  In addition, Resilon 4301 polyurethane provides superior water resistance and compression set resistance in water-based fluids.  Premium urethane O-rings are much less prone to spiral failure and installation damage compared with rubber O-rings. 

 

For use in static and dynamic applications for hydraulics and pneumatics, the dimensions and tolerances of Parker Resilon 568 Profile O-rings match up with AS568B size specifications for diameter and cross-section and are used in the same grooves.

 

Parker’s proprietary Resilon polyurethanes in the O-ring profile deliver: 
• Long life
• Extrusion resistance
• Low compression set
• Greater resistance to spiral failure

 

Standard Materials:
• P4300A90 Resilon® polyurethane; Temp -65 / +275F; Dynamic Pressure 5,000 psi; Static Pressure 10,000 psi
• P4301A90 Resilon® polyurethane; Temp -35 / +275F (+225F in water); Dynamic Pressure 5,000 psi; Static Pressure 10,000 psi

 

Typical applications: 
• Static and dynamic sealing of hydraulic & pneumatic cylinders and equipment components, including:  accumulators, actuators, pumps, and valves

Related Documents

Literature and Reference Materials
Aerospace Reference Guide--5800
Fluid Power Seal Design Guide--EPS 5370
Parker O-Ring Material Offering Guide--5712
Parker O-Ring eHandbook
Parker Tracking System and RFID Technology
USP Class VI Certified Materials - EPS 5248
568 Profile Urethane O-ring
Installation Techniques - O-Rings
Installation Techniques for Linear Fluid Power Seals
Installation Techniques for Linear Fluid Power Seals
Resilon (P4300) High-Performance O-rings - EPS 5204
Resilon® 4301 Polyurethane, EPS 5219
Resilon® Polyurethane - EPS 5202
Resilon® Polyurethane --Landing Page
Training
Basic Sealing Technology-Linear Sealing
Basic Technical Glossary -- seal technology training
Introduction to Sealing -- seal technology training
Seal Failure Modes: Diagnosis and Solutions--Webinar
Sealing Technology Glossary of Basic Terminology
Contact & Support Information
Design Action Request--DAR
Frequently Asked Questions
Compliance, Certifications & Safety
EPS Division, SLC, IATF 16949:2016
EPS Division, SLC, ISO 9001:2015 and AS9100D in Accordance With AS9104/1
How to read a test report
Parker SDS O-ring and rubber materials
Prop 65 General Statement
Seal Storage and Handling Guide - Linear Fluid Power Seals
Product Demos & Tutorials
EPS-Tech-Tip-Typical Sealing Systems in Common Linear Fluid Power Devices
How They Work - Lip Shape Effects on Linear Seal Profiles
Selector Guides
O-Ring Selector Tool (Imperial units)
Healthcare and Life Sciences Solutions - Medical Devices Manufacturing Products
Communities, Blogs & Industry Links
O-Rings Knowledge Base
Parker's Sealing and Shielding blog
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43045682-218 2-218 P4304D60
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