Knowledge base
NH O-RING Academy
Decades of experience in clear, easy-to-understand technical articles: from materials through design to causes of damage. Free O-ring knowledge, first-hand.
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Technical articles
FAQ
10 Questions: O-ring data sheets
We answer the 10 most important questions on the topic of O-ring data sheets Questions +…
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FAQ
10 Questions: O-ring grooves
We answer the 10 most important questions on the topic of O-ring grooves Questions + Answer…
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FAQ
10 Questions: O-ring storage
We answer the 10 most important questions on the topic of O-ring storage Questions + Answer…
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FAQ
10 Questions: O-ring manufacturing
We answer the 10 most important questions on the topic of O-ring manufacturing Questions +…
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FAQ
10 Questions: O-ring resistance
We answer the 10 most important questions on the topic of O-ring resistance Questions +…
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Design
FEP (fluorinated ethylene propylene)
Here you will learn everything you need to know about FEP as a material Manufacturing…
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Design
Piston seal
Here you will learn everything you need to know about the piston seal Definition Types…
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Materials
CR (Neoprene)
Here you will learn everything you need to know about CR (Neoprene) Manufacturing Advantages and…
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Materials
PU (Polyurethane)
Here you will learn everything you need to know about PU (Polyurethane) Manufacturing…
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Materials
EPDM (elastomer)
Here you will learn everything you need to know about EPDM Manufacturing Applications Advantages and…
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Materials
RoHS Directive
Everything you need to know about the RoHS Directive Definition Contents Chemicals Latest…
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Materials
REACH Regulation
Here you will find everything you need to know about the REACH Regulation Background Contents…
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Design
Shore hardness
Here you will find everything you need to know about the Shore hardness rating Definition…
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Materials
Elastomer
Here you will find everything you should know about elastomers Definition Properties…
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Materials
Thermoplastic elastomer
Here you will find everything you need to know about thermoplastic elastomer Properties…
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Design
Elongation at break
Here you will find all the important information on the topic of elongation at break Definition Measurement…
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Design
Tensile strength
Discover the basics of tensile strength in our comprehensive article Basics…
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Materials
PFAS in focus
What are PFAS? Where are they found? Where is contamination highest? How are PFAS…
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O-rings
O-ring guide
Here you will learn everything you should know about O-rings Applications Resistance…
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O-rings
SILICONE O-rings
Here you will learn everything you should know about SILICONE O-rings Applications…
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O-rings
PTFE O-RINGS
Here you will learn everything you should know about PTFE (Teflon) O-rings Applications…
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O-rings
Buying O-rings
Here you will learn everything you should know about buying O-rings Applications…
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Design
O-ring designations
Here you will learn everything you should know about O-ring designations Applications…
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O-rings
NBR O-RINGS
Here you will learn everything you should know about NBR O-rings Applications Resistance…
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O-rings
HNBR O-RINGS
Here you will learn everything you should know about HNBR O-rings Applications Resistance…
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O-rings
FVMQ O-RINGS
Here you will learn everything you should know about FVMQ O-rings Applications Resistance…
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O-rings
FKM O-RINGS
Here you will learn everything you should know about FKM (VITON) O-rings Applications…
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O-rings
FFKM O-RINGS
Here you will learn everything you should know about FFKM (ECOLAST®) O-rings Applications…
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O-rings
FEPM O-RINGS
Here you will learn everything you should know about FEPM O-rings Applications Resistance…
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O-rings
FEP O-RINGS
Here you will learn everything you should know about FEP-encapsulated O-rings Applications…
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O-rings
EPDM O-RINGS
Here you will learn everything you should know about EPDM O-rings Applications Resistance…
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O-rings
CR O-RINGS
Here you will learn everything you should know about CR O-rings Applications Resistance…
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O-rings
ACM O-RINGS
Here you will learn everything you should know about ACM O-rings Applications Resistance…
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Design
Measuring O-rings
Here you will find everything you need to know about measuring O-rings Material Shore hardness…
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Design
O-ring tables
Here you will learn everything about the most important O-ring tables ISO 3601 AS 568 BS 1806 BS…
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Design
O-ring installation
Here you will learn everything you need to know about O-ring installation Installation aids Max.…
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Design
O-ring ISO 3601
Here you will learn everything you need to know about the ISO 3601 standard Tolerances…
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Design
O-ring DIN 3771
Here you will learn everything you need to know about the O-ring standard DIN 3771 O-ring…
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Design
O-ring resistance list
Here you will learn everything you should know about O-ring resistance lists…
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Design
O-ring applications
Here you will learn everything you need to know about O-ring applications…
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Materials
FDA approval
Discover our article on the topic of FDA approval Origin Guidelines Test procedures…
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Causes of damage
O-ring quality control
Here you will learn what optimal quality control of O-rings looks like Dimensions…
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Causes of damage
O-ring heat damage
Learn here how to avoid heat damage in O-rings Causes Damage pattern…
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Causes of damage
O-ring abrasion
Learn here how to minimise abrasion in O-rings Causes Damage pattern…
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Causes of damage
O-ring deformation
Learn here how to reduce permanent deformation of O-rings…
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Design
O-ring pressure application
Here you will learn how to design O-rings optimally under pressure Material selection Shore hardness…
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Causes of damage
O-ring swelling
Here you will learn how to protect your O-rings from media influences Material selection…
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O-rings
O-ring supplier
Here you will learn what makes a good O-ring supplier Selection Quality Delivery time…
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Causes of damage
O-ring gap extrusion
Learn here how to avoid gap extrusion in O-rings? Causes…
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Materials
O-ring Shore hardness
Here you will learn everything you should know about the Shore hardness of O-rings…
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Materials
O-ring storage
Here you will learn what optimal storage for O-rings looks like Shelf life DIN 7715…
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Design
O-rings for hot water
Here you will learn which O-ring material you should use for hot water or steam…
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Design
O-ring coatings
Here you will learn what types of O-ring coatings exist PTFE coating…
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O-rings
O-ring general knowledge
Here you will learn everything you should know about O-rings Materials Dimensions…
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Causes of damage
O-ring causes of damage
What causes of damage occur in O-rings and how can they be avoided Heat Chemistry…
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O-rings
O-ring manufacturing
Here you will learn what processes exist for manufacturing O-rings Compression moulding…
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Design
O-ring grooves
Basics of O-ring groove design: rectangle, trapezoid and triangle.
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Design
O-ring design
Correctly matching cord thickness, groove and material to one another.
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Tools & Reference
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Look up terms
O-ring glossary
Over 100 technical terms about O-rings, materials and design, compactly and clearly explained.
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Disclaimer
The content of the NH O-RING Academy serves as general technical information and does not replace application-specific advice. All information provided is for guidance only; the respective data sheet is authoritative. We accept no guarantee for accuracy and completeness. Liability for damages arising from the use of the content is excluded to the extent permitted by law.