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2. Rigorous sealing
2.1 By deformation
A number of kinematics enable continuous rotary motion to be transmitted using the deformation of a flexible member, mainly a metal bellows, with rigorous sealing (figure 2 ). The most widely used are based on the rotation of an oblique shaft, with the mid-point rotating (figure 2 a), or of an angled or eccentric shaft (figure 2 b).
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Rigorous sealing
Controlled leak tightness
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...
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