![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
5. Glossary
thermal degradation
Irreversible and undesirable modification of a material's properties due to overheating.
elasticity
Property of a substance that enables it to change length, volume or shape in direct response to a force making such a change, and to return to its original shape when the force is removed.
elastomer; elastomer
Elastic rubbery substance, such as natural or synthetic rubber.
dynamic sealing" surface finish
Relative roughness, generally expressed in µm, of dynamic sealing surfaces (rotating shaft surfaces, sliding rod surfaces, etc.) or seals, especially for hard materials (plastic, carbon, etc.). The smaller the number, the smoother the finish. In dynamic sealing, the roughness parameters Ra, Rz and...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Mechanical functions and components
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Glossary
Bibliography
Standards
- Mechanical seals – Main dimensions, designations and material codes. - NF EN 12756 - Avril 2001
- Bagues d'étanchéité à lèvres pour arbres tournants incorporant des éléments d'étanchéité en élastomère. Partie 1 : dimensions nominales et tolérances. - ISO 6194-1 - 2007
- Lip seal rings for rotating shafts incorporating elastomer sealing elements – Part 2: vocabulary. - NF ISO 6194-2 - 2009
- Geometric product specification...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference