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Supplier: Hi-Tech Seals, Inc.
Description: The primary function of anti-extrusion rings is to take up space in a groove, and/or prevent extrusion of material at high pressures. Anti-extrusion rings can also be used to assist seals where exaggerated clearance gaps are an issue. The determining factors when selecting anti-extrusion ring
- Sealing Element or Lip Material: Fluoroelastomer (FKM - Viton®, Fluorel®, etc.), Nitrile (NBR - Buna-N), Polyetheretherketone (PEEK), Polytetrafluoroethylene (PTFE- Teflon®, etc.), Polyurethane / Urethane
- Seal Type: Back-up Ring
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Supplier: H & D Distributors, Inc.
Description: 105 x 100 x 2.5METRIC ANTI-EXTRUSION RING
- Seal Type: Back-up Ring
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Supplier: KC Seals, Inc.
Description: Relatively hard, high modulus ring (or similar device) placed in the gland between the O-ring and the groove side walls, to prevent extrusion of the seal into the clearance gap; also known as a back-up ring. Our styles can vary from standard to custom designed sizes. K.C. Seals has been
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Supplier: Bailey International LLC
Description: : Polyurethane u-cup Rod Wiper: Polyurethane, snap-in Piston Seal: 5-piece; (1 ea.) seal, (2 ea.) anti-extrusion rings, (2 ea.) wear bearings All Seals: Manufactured to US specifications Paint: Red. Custom colors are available. Packaging: Individually poly bagged.
- Cylinder Configuration: Simple Configuration
- Cylinder Action: Double Action
- Body Material: Steel, Other
- Mounting Options: Other
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Supplier: International Hydraulics
Description: - 90 durometer o-ring with anti-extrusion back-up washer to prevent leakage under high pressure and cycle loading. Rod Seal - Polyurethane U-Cup providing long wearing, positive seal. Rod Cap & Clevis Cap - Ductile iron comes with drilled oil passages, offering increased bearing surface
- Mounting Options: Clevis or Eye
- Cylinder Style: Tie-rod
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Supplier: SAE International
Description: with AS5857. They are for use in hydraulic and pneumatic system components as anti-extrusion devices in conjunction with O-rings, packings and other elastomeric seals. Because of the construction of groove dimensions, back-ups specific to rod applications are designated R - Rod (Female), back-ups
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Bailey International LLC
Chief Hydraulic Cylinder Line
also available. • Intended Use: Double-acting applications. • Piston: Steel. • Gland: Ductile iron. • Tube: Skived and roller burnished, precision finished steel for extended seal life. • Rod: Hard chrome plated. • End Mounts: Cross tubes. • Tube Seal: Buna O-ring with Polytemp hytrel back-up. • Rod Seal: Polyurethane u-cup. • Rod Wiper: Polyurethane, snap-in. • Piston Seal: 5-piece; (1 ea.) seal, (2 ea.) anti-extrusion rings, (2 ea... (read more)
Browse Hydraulic Cylinders Datasheets for Bailey International LLC
Engineering Web Search: Anti Extrusion Backup Ring Top
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DZR Seal - SKF Polyseal Inc./Products/Rod Seals
Anti-extrusion ring and seal geometry provide a positively actuated backup ensuring that the extrusion gap is closed
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LTP Seal - SKF Polyseal Inc./Products/Piston Seals
Designed to retofit O-Ring grooves. Locking anti-extrusion rings for easier installation.
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ISO 3601-4:2008 - Fluid power systems -- O-rings -- Part 4:...
Fluid power systems -- O-rings -- Part 4: Anti-extrusion rings (back-up rings)
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Turcon??? Variseal???
seal is required to operate in extremes of temperature and where good extrusion and Spring Force compression characteristics are needed.
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SAE Standards Works
It supplements ARP 1231, "Gland Design, Elastomeric O-Ring Seals, General Considerations". This document establishes standard gland design criteria
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SAE Standards Works
AS4716A - Gland Design, O-Ring and Other Elastomeric Seals
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Backup Rings, Anti-Extrustion Rings
Backup Rings ERIKS offers a wide range Back-up rings are typically used in conjuction with a primary seal such as an o-rings.
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Fluoroelastomer (FKM - Viton®, Fluorel®, etc.)...
Anti-Extrusion Rings -- Butt Cut Backup Style Ring from Hi-Tech Seals, Inc.
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Dynamic Seals Information on GlobalSpec
Back-up Rings Back-up rings or anti-extrusion rings are washer-like devices used to prevent seals from extruding through gaps while under pressure.
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.Seals Gaskets Metric Oil Hydraulic Shaft Mechanical O-ring...
O ring Wiper Backup Piston Flange Packings V-Packing T-Seals Dust Seals Excluders Anti-Extrusion Rings Telescopic Packing
