Hydrodynamic bearing intended to support a cylinder driven in rotation about its axis
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United States of America Patent
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Sep 22, 2015
Grant Date -
Jan 10, 2013
app pub date -
Mar 24, 2011
filing date -
Mar 25, 2010
priority date (Note) -
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Abstract
A hydrodynamic bearing for supporting a hollow cylinder that may be deformable in the radial direction, driven in a rotational movement about its axis, the diameter being greater than or equal to one meter, the bearing essentially consisting of a bushing and a bushing support, and in which the bushing, notably of constant thickness, extends over a portion of cylinder of axis δ, having a guide surface, intended to follow the exterior surface of the cylinder via a film of lubricant, and a surface secured to the bushing support. The bushing support has, if appropriate locally, at least in the region of an intermediate zone of the bearing, cross-section-reducing elements allowing elastic deformation of the bearing so as to limit the maximum value of the guide forces over the bushing. The bearing is useful in supporting and guiding a rotating hollow grinder subjected to unevenly distributed forces during rotation.
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