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  • Rotary Seal Lip Design and Geometry
    Apart from the elastomeric lip material and interface between the sealing lip and application shaft, a critical design feature of the seal lip is its geometry. Lip geometry is one of several factors that directly affect the radial load exerted on the shaft. The others include the presence
  • Medical Device Link .
    to an essentially oscillating radial stress in the thoracic area of the aorta, whereas a stent graft in the abdominal area is subject to more complex axial and flexoral stress. The aortic stent graft being tested was developed by JOTEC GmbH (Hechingen, Germany) (Figure 1). The stent graft consists
  • Stamped Rings
    Stamped retaining rings have a tapered radial width that decreases symmetrically from the center section to the free ends. Tapered construction permits the rings to remain circular when they are expanded for assembly over a shaft or contracted for insertion into a bore or housing. This constant
  • Seal Operating Procedures
    , friction increases, temperature increases, and film thickness continues to decrease. If this cycle continues, it can lead to seal failure. Maximum permissible pressure for radial lip seals range from 7 psi for shaft speeds below 1,000 fpm to 3 psi for shaft speeds above 2,000 fpm. >Although

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