Abstract: A roller mill includes a rotatable grinding table, at least one grinding roller retained rotatably on a pivot lever and in rolling engagement with the grinding table, the pivot lever being pivotable about a pivot lever axis, and at least one drive train connected to the grinding roller and having a fixed motor and a fixed gearing mechanism. The drive train further has a gearing mechanism which pivots with the pivot lever and/or the grinding roller.

Abstract: The roller mill according to the invention substantially comprises a rotatable grinding table, at least one grinding roller which is retained rotatably on a pivot lever and which is in rolling engagement with the grinding table, the pivot lever being pivotable about a pivot lever axis, and at least one drive train which is connected to the grinding roller and which has a fixed motor and a fixed gearing mechanism. The drive train further has a gearing mechanism which pivots with the pivot lever and/or the grinding roller.

Abstract: The invention relates to a machine for compacting and/or crushing bulk material, in which two rollers which can be pressed together at high pressure each consist of a main roller body and a roller shell which is releasably connected to the main roller body and is composed of individual segments. Each of the individual segments has one single lug projecting in the circumferential direction on the front long side in the direction of rotation of the roller and one single complementary recess on the rear long side in the direction of rotation of the roller. The generatrices of the outer surfaces of the segments point in the circumferential direction and run radially with respect to the roller axis. This results in a simple construction of the segments and a high degree of security against tilting.

Abstract: The invention relates to a roller mill with two rollers, a grinding gap formed thereby and a material inlet shaft the end walls of which bear on their lower ends carrier plates with replaceable sintered metal wear parts. Each wear part is formed by a plurality of small sintered metal plates of small area which are set close against one another like a mosaic and are individually screwed onto the carrier plate so that in case of wear only those small sintered metal plates which are actually worn can be replaced simply, quickly and economically.

Abstract: A bearing segment for a tiltable and rotatable sliding shoe comprises a base on which is supported a bearing pin having a radial ball and socket joint coupling the pin to the shoe. The ball and socket joint has an inner ring supported on the pin and an outer ring fixed to the shoe. The rings have confronting arcuate surfaces which permit limited relative spherical movement of the rings.

Abstract: The invention relates to a hydrodynamic bearing in which a pressure limiting valve is connected to the oil supply to a groove provided at the inlet zone of the bearing element. The oil pump thus can be of considerably smaller dimensions than heretofore, the energy consumption in operation is reduced, and the removal of heat is improved.

Abstract: A hydrodynamic bearing for supporting a rotary member has a bearing gap between the rotary member and the bearing and which is occupied by fluid. Hydrodynamic pressure in the gap is monitored by a sensor which is coupled to a starting aid that is responsive to variations in the hydrodynamic pressure to switch on and off a starting aid. Upon being switched on the starting aid is operable to deliver additional fluid to the bearing gap.

Abstract: A hydrostatic bearing the bearing surface of which contains several pressure pockets. A bore arranged symmetrically to the pressure pockets connects the latter with a pressure relief chamber and with a source of hydraulic pressure medium. A bearing such as this is characterized by its simple construction and by reliable hydraulic pressure relief for each bearing shoe.

Abstract: This invention relates to a hydrostatic bearing unit for rotating parts, and more especially to a radial bearing unit for heavy machine parts, such as drums, comprising a fixed base and a shoe which is mounted for limited gyration relative to the base and for hydraulic adjustment with respect to the rotating parts and which comprises a bearing surface fed with hydraulic carrier medium. The invention also relates to a hydrostatic bearing assembly comprising several such bearing units.