All Trelleborg sites
Close- Group Trelleborg is a world leader in engineered polymer solutions that seal, damp and protect critical applications in demanding environments. /seals/-/media/group/site-switch/trelleborg-group.jpg?h=264&w=293&rev=b3492bd026aa498f90103f0288dfc4e6&hash=72864F3ACBDA1724A3E5250CD2424C68
- Antivibration Solutions Helping to remove unwanted vibration and noise in Rail, Marine, Off-highway and Industrial applications /seals/-/media/group/site-switch/antivibration.jpg?h=264&w=293&rev=cac94d89d97a4764937febb8422dbc03&hash=12A523DC26C13E43E5FE7089DB9F3486
- Boots Advanced dynamic protection for Automotive Driveshaft and Steering Gears /seals/-/media/group/site-switch/testing-boot-cold-1.jpg?h=264&w=293&rev=e398df5cfb7d4080a18fb803255e50bc&hash=7CAF09916CBE838BAFA919AED27F6B08
- Damping Solutions Automotive noise damping shims & insulators /seals/-/media/group/site-switch/damping-solutions.jpg?h=264&w=293&rev=e4886fdb3c364d319c626e35fe923d04&hash=D4E08121DF08463FFBFCA5AD275A4AEF
- Engineered Coated Fabrics Trelleborg’s Engineered Coated Fabrics business unit, a world-leading producer of specialty polymer-coated and calendared materials, operates under the Coated Systems business area. /seals/-/media/group/site-switch/engineered-coated-fabrics.jpg?h=264&w=293&rev=2fdac9be0f434313920fb532c7262a43&hash=23E184F52CD740B530FC08738E530DAC
- Fluid Handling Solutions Industrial Hose, Expansion Joint, Oil & Marine Hose, Rubber Sheeting and Mining Applications /seals/-/media/group/site-switch/fhs.jpg?h=264&w=293&rev=6cf337a4c82642b59e004d0a9199ea15&hash=4D0CA37036809222E4A78E27A8A64AAB
- Medical Solutions Supporting the Healthcare and Medical industry with advanced polymer engineered components /seals/-/media/group/site-switch/healthcare-and-medical.jpg?h=264&w=293&rev=627ac8af44794afb8aa913220f959254&hash=CCFF239DAA8847077E4206C7843BEFE9
- Marine & Infrastructure Highly engineered polymer solutions for marine and civil infrastructure /seals/-/media/group/site-switch/marine-and-infrastructure.jpg?h=264&w=293&rev=b209d371ac264b6f85b7b8167ef0860c&hash=51AA9CFA98963463E6162A8DE91DFDA2
- Sealing Solutions Sealing and bearing solutions for Industrial, Automotive and Aerospace applications /seals/-/media/group/site-switch/sealing-solutions.jpg?h=264&w=293&rev=158324dc66494c6a8450812cbd4a794b&hash=6E81A625A8BFC9F2759D88F9EE878AA1
- Seals & Profiles Seals for applications in buildings and construction, aerospace, automotive, agriculture, renewable energy and water infrastructure. /seals/-/media/group/site-switch/seals-and-profiles.jpg?h=264&w=293&rev=c630d927a2a9455e851bb1a4fd6da61e&hash=12B561EA8906F4AA6257EA73716A443C
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- English
- Finnish | suomi
- French | français
- German | Deutsch
- Hungarian | magyar
- Italian | italiano
- Japanese | 日本語
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- Polish | polski
- Portuguese | português
- Spanish | español
- Swedish | svenska
- Turkish | Türkçe
- Vietnamese | Tiếng Việt
Back-up Ring
Back-up Rings are commonly used to protect seals from the effects of extrusion when pressurised adjacent to a housing gap. A wide range is available to suit all seals and grooves. Usual configurations are Spiral, Scarf cut, Uncut and Concave and materials range from Virgin Polytetrafluoroethylene (PTFE), through the range of filled grades, up to the high modulus grades of engineering thermoplastics. Back-up Rings can be used statically or dynamically, over a broad temperature and pressure range.
Technical drawing
