Abstract: A rotary joint for use in a system for generating energy from water power, the joint comprising a first rotationally symmetrical connecting element and a second rotationally symmetrical connecting element disposed concentrically with the first connecting element and rotatable relative thereto, an annular gap between the two connecting elements, and a row of rolling elements rolling along a race on each of the connecting elements, wherein provided to seal the annular gap is a sealing device having a sealing ring fixed to the first connecting element, and a circumferential sealing lip, or sealing surface, extends along a lead-in surface, wherein the second connecting element is divided into a race ring, with at least one race, and a lead-in ring with a lead-in surface for at least one sealing ring, the lead-in ring being removably connected to at least one race ring.

Abstract: The invention relates to a rolling bearing arrangement for a rotational connection for a roller/ball combination raceway system, for the purpose of relative movement of a plurality of rotating elements, in particular two rolling bearing rings supported on one another. At least one rolling element raceway is hardened along its annular shape in the contact area between rolling element and rolling bearing ring. The invention is characterized in that provided at the beginning and the end of the at least one hardened rolling element raceway is at least one overlap region which extends along the rolling element raceway, the overlap region comprising a region of lower hardness than the surrounding hardened region, the lower hardness gap region, extending at an inclination through the overlap region.

Abstract: The invention relates to a rolling bearing arrangement (1, 26, 31, 34, 36, 37), preferably a large rolling bearing with a diameter of 0.

Abstract: A bearing arrangement comprising mutually rotatable components, and devices for integrated heating and cooling of rolling-element raceways, or of mutually rotatable components, and a method for integrated heating or cooling applicable to the mutually rotatable components, and devices for integrated heating or cooling of the components and rolling-element raceways wherein the respective heating and/or cooling is effected by direct heat input into the components, or direct heat removal from the components, and is controllable, and is produced by the interaction of cold- or heat-producing elements, or functions or devices, and is adapted to switch between a heating effect and a cooling effect.

Abstract: The invention relates to a drive mechanism (1) for rotatably coupling a first system part or machine part, preferably an assembly (A), to a base, pedestal or frame or to another system part or machine part, for example for rotary positioning during the processing of large workpieces or during the moving of loads, which drive mechanism comprises two ring-shaped connecting elements (3, 4) each having at least one planar connecting surface (5, 6) and fastening means (7, 8) that are arranged distributed in a crown shape therein and effect connection to different system parts or machine parts or the like, said two connecting elements (3, 4) being arranged concentrically with each other and radially one inside the other with a gap-shaped interspace (9) in which are disposed one or more rows of rolling elements (14, 15, 16), each row whereof rolls between two respective raceways (17, 18) on the two connecting elements (3, 4), thus enabling same to rotate relative to each other, at least one connecting surface (5, 6)

Abstract: The invention relates to a tracking device comprising a receiving structure that can be adjusted about at least one axis, for mounting at least one element that is sensitive to electromagnetic waves and has a preferential radiation direction, and comprising at least one rotational drive per axis for the purpose of actively rotationally adjusting said receiving structure in order for the element(s) mounted thereupon to track a celestial body on one or multiple axes with the aid of a control system and according to a predetermined algorithm, (each of) the rotational drive(s) comprising two annular connection elements that are concentric with one another, are mounted one upon the other, and are or can be coupled to at least one motor for mutual relative adjustment, a first connection element comprising at least one planar connection surface for fixing in place to a foundation, base, column or a connection clement of another pivoting unit, and a second connection element comprising at least one planar connection

Abstract: The invention is directed to a worm gear mechanism comprising a worm shaft with a worm thread formed or worked, in particular cut, directly into the shaft main body, and also comprising a worm wheel that meshes with said worm thread, which worm wheel is of annular form and is integrated with an annular connection element of an open-center large-diameter rolling bearing, the two annular, mutually concentric connection elements of which are supported against one another in rotatable fashion and serve for connection to two machine or installation parts that are rotatable relative to one another, wherein the toothed worm wheel connection element is formed from an annular main body with a toothing formed or worked directly therein, having at least one connection surface for abutment against a planar contact surface of the respective machine or installation part, and having multiple fastening bores arranged so as to be distributed in a ring around the clear opening, the longitudinal axes of which bores extend perpe

Abstract: The invention relates to a corrosion protection device (1) for a bearing arrangement (2; 2?; 3; 3?) used or usable in machine and/or plant parts and a method for using such (a) corrosion protection device(s), wherein the bearing arrangement (2; 2?; 3; 3?) consists of at least one metallic material, e.g.

Abstract: The invention is directed to a Wolfrom-type, webless planetary gear set, comprised of two coaxial housing parts which are rotatable opposite each other with one each internal toothing on the applicable inner side, a toothed sun gear as well as several toothed planetary gears, which roll between the sun gear and the internal sets of teeth and are arranged in a floating manner. In other words, without further guidance on a planetary gear carrier or similar with a bearing arrangement between the two housing parts whose bearing bodies circulate around the paths which are located radially outside at least one internal toothing.

Abstract: A bearing arrangement for rotational mounting of machine and plant components, comprising a nose ring, a bearing ring and a retaining ring of a large rolling bearing serving as a main mounting of a rotor of a wind power installation, and further comprising a plurality of tapered-roller rolling bearing arrays, particularly at least two tapered-roller rolling element arrays, which roll circulatingly about a main axis of rotation about the axial direction, and further comprising at least one cylindrical roller array arranged perpendicularly to the tapered-roller rolling element arrays and operative to support radial force components, wherein the plurality of tapered-roller rolling bearing arrays for supporting all axial force components are arranged parallel to one another, and planes of the tapered-roller rolling element arrays in which the tapered-roller rolling element arrays rotate about the axial main axis upon rotational movement of the mounted part do not intersect.

Abstract: The invention relates to a blade bearing or nacelle bearing of a wind turbine, comprising two rings mounted adjacent to each other and rotatable relative to each other for connection on one side to the hub of the wind turbine and on the other side to a blade of same, or for connection on one side to the tower of the wind turbine and on the other side to the nacelle of same, wherein the two rings rotatable relative to one another are each provided with a circumferential internal toothing or are non-rotatably coupled for the purpose of joint toothed engagement by one or more toothed planetary gears running around a central sun gear, the planetary gears in turn meshing with the toothed sun gear.

Abstract: A wind turbine hub having both blades mounted thereon by means of blade bearings adjustable about the longitudinal axes thereof. The turbine includes means for effecting multi-axes adjustments of a plurality of elements relative to one another. The elements are rotatable about bearings having selectively oriented axes of rotation, each bearing comprising two parts rotatable relative to each other.

Abstract: The invention relates to a rolling bearing arrangement for a rotational connection for a roller/ball combination raceway system, for the purpose of relative movement of a plurality of rotating elements, in particular two rolling bearing rings supported on one another. At least one rolling element raceway is hardened along its annular shape in the contact area between rolling element and rolling bearing ring. The invention is characterized in that provided at the beginning and the end of the at least one hardened rolling element raceway is at least one overlap region which extends along the rolling element raceway, the overlap region comprising a region of lower hardness than the surrounding hardened region, the lower hardness gap region, extending at an inclination through the overlap region.

Abstract: A rotary joint for use in a system for generating energy from water power, the joint comprising a first rotationally symmetrical connecting element and a second rotationally symmetrical connecting element disposed concentrically with the first connecting element and rotatable relative thereto, an annular gap between the two connecting elements, and a row of rolling elements rolling along a race on each of the connecting elements, wherein provided to seal the annular gap is a sealing device having a sealing ring fixed to the first connecting element, and a circumferential sealing lip, or sealing surface, extends along a lead-in surface, wherein the second connecting element is divided into a race ring, with at least one race, and a lead-in ring with a lead-in surface for at least one sealing ring, the lead-in ring being removably connected to at least one race ring.

Abstract: A rolling bearing, particularly a rotor bearing, or main bearing, for a wind power generating plant, the bearing having at least two mutually concentric rings separated from each other by a gap in which one or more rows of rolling elements roll along raceways on both rings, such that the two rings are rotatable in mutually opposite directions about their common axis, wherein each ring has at least one connection surface for connection to a foundation, wherein the connection surfaces extend parallel to one another and are passed through approximately perpendicularly by a plurality of fastening bores for receiving fastening bolts extending through them or screwed into them, wherein the raceway of at least one rolling-element row is formed on a part separate from the ring concerned and is pushed away from the ring concerned in a direction perpendicular to the connection surfaces, by at least one resilient element.

Abstract: A bearing arrangement for rotational mounting of machine and plant components, comprising a nose ring, a bearing ring and a retaining ring of a large rolling bearing serving as a main mounting of a rotor of a wind power installation, and further comprising a plurality of tapered-roller rolling bearing arrays, particularly at least two tapered-roller rolling element arrays, which roll circulatingly about a main axis of rotation about the axial direction, and further comprising at least one cylindrical roller array arranged perpendicularly to the tapered-roller rolling element arrays and operative to support radial force components, wherein the plurality of tapered-roller rolling bearing arrays for supporting all axial force components are arranged parallel to one another, and planes of the tapered-roller rolling element arrays in which the tapered-roller rolling element arrays rotate about the axial main axis upon rotational movement of the mounted part do not intersect.

Abstract: An assembly for absorbing torques at the rotor hub of a wind turbine whose rotation axis extends toward the wind, and for diverting axial and radial forces and tilting moments into a load-bearing structure by means of a main bearing, and for extracting rotational energy from the rotor hub by means of a gear whose planet gears mesh with a sun gear and a ring gear, and comprising a generator connectable to an output side of the planetary gear, and operates to convert the rotational energy into electrical energy, wherein the planetary gear is integrated with a main bearing of a wind power plant, and the ring gear of the planetary gear is driven by the rotor hub, while the planet gear carrier is fixed to the chassis of a gondola of the power plant, and the sun gear of the planetary gear mechanism is drivingly connected to the generator, and the generator does not protrude radially beyond the rotor bearing or main bearing.

Abstract: A bearing arrangement comprising mutually rotatable components, and devices for integrated heating and cooling of rolling-element raceways, or of mutually rotatable components, and a method for integrated heating or cooling applicable to the mutually rotatable components, and devices for integrated heating or cooling of the components and rolling-element raceways wherein the respective heating and/or cooling is effected by direct heat input into the components, or direct heat removal from the components, and is controllable, and is produced by the interaction of cold- or heat-producing elements, or functions or devices, and is adapted to switch between a heating effect and a cooling effect.

Abstract: A device for a rotary drive of a crane, a working platform, a tracking photovoltaic assembly, a heliostat, or the like, for tracking mirrors of a solar thermal power station, etc., on a foundation or chassis, of a heavy duty vehicle, or another part of a machine, comprising a worm gear having a housing having a connecting surface for connecting to a part of a machine or facility, chassis, or a foundation, with a rotatable worm, and a worm wheel rotatably mounted in the housing, wherein there is provided a rolling contact bearing on each side of toothing of the worm wheel engaged with the worm, and a connecting surface for connecting to a part of a machine or facility, to a chassis or a foundation The housing and the worm wheel each formed in one piece, wherein the smallest internal diameter of the housing is larger than the largest external diameter of the worm wheel.

Abstract: The invention relates to an element (10) for sealing two parts (2, 3) that can be rotated in relation to one another. Said element comprises at least one first sealing ring (11) consisting of a permanently elastic material, which is fixed to one of the two rotatable parts and comprises at least one sealing lip (21) and at least one second sealing ring (12), which is fixed to the other rotatable part and comprises a strip (19) consisting of another material that runs along its periphery. At least one sealing lip of the first sealing ring lies against said strip.