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 ?, 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.

Abstract: A shoe bearing for a heavy rotary drum such as a cylindrical casing of a tube mill designed so that all the shoe bearing elements used at each bearing station are always uniformly loaded. One of the two outlying shoe bearing elements (11) is braced directly against the foundation (16) while the other shoe bearing elements (12, 13, 14) of the bearing station are supported on a flexible support cable (17).

Abstract: A shoe bearing for a heavy rotary drum such as a cylindrical casing of a tube mill designed so that all the shoe bearing elements used at each bearing station are always uniformly loaded. One of the two outlying shoe bearing elements (11) is braced directly against the foundation (16) while the other shoe bearing elements (12, 13, 14) of the bearing station are supported on a flexible support cable (17).

Abstract: In order to monitor the function of the sliding block bearing elements in view of the hydrostatically and/or hydrodynamically generated compressed oil film or, respectively, compressed oil cushion, given rotating drums seated on sliding blocks such as, for example, tube mills, and to control the operation in conformity with the result of the monitoring, it is inventively proposed that the lubricating gap thickness, i.e., the distance between the bearing surface of the sliding bearing shoe and the running surface of the rotating drum supported thereon via the lubricating gap or, respectively, the compressed oil film, is directly measured during operation and the rotating drum operation is controlled dependent on this measured quantity.

Abstract: A bearing arrangement for rotatably supporting a generally cylindrical journal having an outer circumferential surface exhibiting out-of-round deviations superimposed on a perfect cylinder that is centered on a longitudinal axis, with the journal acting on the bearing arrangement with a basic radial action force aimed along a reference half-plane extending in a predetermined radial direction from the longitudinal axis, includes a pair of bearing pads situated at respective contact locations that are spaced in opposite circumferential directions from the reference half-plane. Each of the bearing pads extends substantially over the entire length, but at most only over a small fraction of the circumference, of the outer circumferential surface, such that the bearing pads are at most in a very limited area contact with the outer circumferential surface when the journal is supported thereon.

Abstract: A dynamoelectric machine has rockable pedestal journal members to support the rotor. The rockable journal members ride on spherical buttons to permit movement. A lower bearing shell supports the rockable members within an outer housing. A key is provided in channels between the lower bearing shell and the outer housing which may be easily removed. Shims may be placed on top of the key as desired to effect positioning of the rotor.

Abstract: An anisotropic bearing support for a high-speed rotor includes at least two support devices having different values of stiffness. The two support devices act at substantially the same point on the perimeter of the rotor along radial directions which are angularly spaced apart from each other. The resulting anisotropic bearing support reduces the incidence and severity of rotor vibration and improves rotor stability.