Abstract: In a 3D printing process for building up components layer by layer, an individual set of CAD data is created that takes into account a dimension of a working chamber of a 3D printing machine and is based on structural design data of a plurality of components to be produced. The set of CAD data defines form and position of the components in the three-dimensional space and form and position of supporting structures connecting at least some of the components to one another. The position of at least some components is chosen as to be arranged one above the other and/or nested in one another in a direction of production. The components and the supporting structures are built up layer by layer from a material by using a 3D printing machine and the set of CAD data in a single operation and the components are separated from the supporting structures.

Abstract: A support apparatus for a first gearing and a second gearing or for a drive includes first and second support flanges, a first support mounted to the first support flange and destined to introduce a first supporting force into the second support flange, and a second support mounted on the second support flange and destined to introduce a second supporting force into the first support flange, wherein the first support is sized to extend through the second support.

Abstract: A planetary transmission includes a transmission part rotatable about an axis of rotation and having a discharging region. The transmission part has an end face formed with a recess for receiving lubricant from a receiving region and discharging received lubricant to the discharging region. A covering plate covers the recess in the transmission part and has an opening in communication with the recess so that the recess is open to the outside. The opening is positioned in peripheral direction of the transmission part centrally in the covering plate and in radial direction of the transmission part proximally with respect to the axis of rotation of the transmission part The opening has an area sized smaller than a base area of the recess. A duct extends from an interior of the recess to the discharging region at a minimal distance from the axis of rotation of the transmission part.

Abstract: A planetary transmission includes a planetary stage and a FOFW system having an interrogation unit, a locally fixed antenna electrically connected to the interrogation unit and arranged within a housing of the planetary stage, and a plurality of FOFW sensors fastened to planet gear pins of the planetary stage such that at least two of the FOFW sensors are fastened to each of the planet gear pins. A plurality of co-rotating antennae are fastened to the planet gear carrier at a number corresponding to a number of the planet gear pins. The co-rotating antennae are each electrically connected to at least one of the FOFW sensors and arranged and configured such as to transfer measurement data detected by the FOFW sensors to the locally fixed antenna.

Abstract: An oil conveying and storage device for reducing an oil level in an oil sump of a gearbox during operation of the gearbox includes a first piston mounted for executing a forward and backward movement, an intake chamber having a volume which varies in response to the forward and backward movement of the first piston, and a work cylinder. A thermal transfer wax is received in the work cylinder, and a second piston is received in the work cylinder and connected to the first piston. The second piston is moved in a temperature-dependent manner via the thermal transfer wax such that the volume of the intake chamber is increased as the temperature rises.

Abstract: The invention relates to a clutch hub. The clutch hub (1) comprises a hub body (2) with an axial passage opening (4) for receiving a shaft (5) and with in each case one face side (3a, 3b) at the two axial ends of the passage opening (4). An internal surface (6) is formed in the passage opening (4), and a flat surface (7a, 7b) annularly surrounding the passage opening (4) is formed on each of the face sides (3a, 3b). The internal surface (6) is covered by an electrical insulation coating (8) in the form of a ceramic coating. The electrical insulation coating (8) also, in continuous fashion, covers a respective annular region (9a, 9b), surrounding the passage opening (4), on the flat surfaces (7a, 7b) and a transition region (10a, 10b) formed between the internal surface (6) and the respective annular region (9a 9b).

Abstract: A planetary gear set includes a slide bearing shell arranged on a planet gear axle, a planet gear mounted rotatably on the slide bearing shell and a planet carrier having a recess for receiving the planet gear axle. An axial disk is mounted in a floating manner between a web of the planet carrier and the planet gear in an axial direction and configured flat on an axially outer side facing the web of the planet carrier. A lubricant film between the axial disk and the planet gear ensures during normal operation hydrodynamic operation between the planet gear and the axial disk. A deficient lubrication is present between the axially outer side of the axial disk and the web of the planet carrier.

Abstract: A planetary axle for a planetary gearbox can be constructed analogously to a transverse link axle and/or a thrust/flexural link axle and/or a longitudinal link axle for use in the automotive industry. The planetary axle includes a clamping area for clamping of the planetary axle in a side of a planetary carrier, a bearing seat area for receiving a planetary bearing, and a link area disposed between the clamping area and the bearing seat area.

Abstract: A multiple drive for a heavy load application includes a plurality of drive trains which are activated such that individual ones of the plurality of drive trains are successively activated automatically during startup of the heavy load application as part of a predefined activation strategy according to a predefined activation scheme and an activation sequence defined therein. In the event of a repeated start of the heavy-load application, a different activation scheme can be used for the activation.

Abstract: A multi-plate clutch includes a plate fin and first and second flanges connected to one another in a torque-transmitting manner via the plate fin. A screw fastener braces the plate fin on a first lamellar bore with the first flange, and a first spacer element is arranged on the plate fin to support a first axial movement of the second flange.

Abstract: A housing component includes a flange defining a center point and having an end face formed with microstructures in a first region and a second region to increase a local friction coefficient. The microstructures have each a blade shape with a cutting line, the cutting line in the first region being arranged concentrically about a first local center point, and the cutting line in the second region being arranged concentrically about a second local center point. The first and second local center points have different radial distances from the center point of the flange.

Abstract: A wind turbine transmission includes a high-speed spur gear stage which includes a HSS spur gear and an HSS pinion meshing therewith on a HSS pinion shaft. The HSS spur gear is directly mounted in a transmission housing of the wind turbine transmission. A sun gear shaft of a transmission stage, which is mounted upstream of the high-speed spur gear stage, is directly coupled to the HSS spur gear.

Abstract: A measuring system for detecting variables on planet carriers of a planetary gear train having a plurality of planetary gear stages includes a first sensor which is arranged on one of the planet carriers of one of the planetary gear stages for detecting the variables of a planet gear rotationally connected to the at least one of the planet carriers. An electronics configured for arrangement on the planetary gear train is operably connected to the first sensor for supply of the first sensor with electrical energy.

Abstract: A belt drive and a method for the monitoring thereof allows conclusions to be drawn regarding loads to which the belt has been subjected over its past usage period. The method includes a rotatably mounted disc and a belt which is deflected at the disc. The belt and the disc are equipped with a marking and are positioned with respect to each other such that the markings are directly opposite each other in a trigger position when the belt circulates around the disc. The trigger position is recorded by a monitoring device, which emits a signal when the markings are located in the trigger position. The number of signals triggered over a time period is recorded. The loads to which the belt or the disc have been subjected during the time period is determined while taking into consideration relevant influencing variables.

Abstract: The invention relates to a bearing arrangement of a helical spur gear (2). The spur gear (2) is arranged on a transmission shaft (4) for conjoint rotation therewith. The transmission shaft (4) is mounted in two conical sliding bearings (6, 8), the cone angles of which are different.

Abstract: A drive arrangement for driving a work machine includes a motor configured to generate a torque, and a transmission apparatus configured to transmit the torque from the motor to the work machine. The transmission apparatus includes a fluid coupling and at least one controllable torque transmitter configured to control transmission of the torque from the motor to the work machine.

Abstract: The invention relates to a seal arrangement for sealing a radial gap between an inner first component (8) and an outer second component (15) which can be rotated in relation to each other, the first component (8) being rotatable about an axis of rotation and the second component (15) being arranged coaxially to the first component (8). The seal arrangement comprises: a dynamic seal part (14) connected to the first component (8); a static seal part (15) connected to the second component (15); a first labyrinth seal (1) formed by a gap between a first section of opposing surfaces of the dynamic seal part (14) and the static seal part (15); and a leaf seal (2) which is radially arranged inside the first labyrinth seal (1). The invention is characterised in that the seal arrangement comprises a dust protection cover (3) connected to the second component (15), which is arranged radially outside the first labyrinth seal (1).

Abstract: An arrangement includes a shaft arranged within a housing and sized to project through a housing opening, and a shaft sealing ring arranged between the housing and the shaft in a region of the housing opening. A wirelessly interrogatable SAW system has an interrogation unit, at least one stationary first antenna electrically connected to the interrogation unit, at least one rotating second antenna attached in fixed rotative engagement to the shaft, and at least one wirelessly interrogatable SAW sensor attached in fixed rotative engagement to the shaft and electrically connected to the at least one second antenna. The first and second antennas are arranged to overlap each other in a radial direction. Closing the housing is an annular housing cover to which the first antenna is attached at a distance from the second antenna in an axial direction.

Abstract: The invention relates to a motor-operated crane drive in which a more rapidly rotating motor (1) drives a more slowly rotating cable drum (3) via a transmission (3). A safety brake (5) is arranged on the more slowly rotating side of the transmission (2). A signal that is used for actuating the safety brake (5) is utilized for initiating an electrical deceleration of the motor (1).

Abstract: A planetary gear includes a housing, a first gear stage having a first planet gear carrier, a bearing disposed on a wall of the housing, and a first shaft connected to the first planet gear carrier for torque transmission and supported in the bearing. The planetary gear further includes a second gear stage having a second planet gear carrier connected to a sun gear shaft of the first gear stage for torque transmission. The second planet gear carrier is supported in at least one of two ways, a first way in which the second planet gear carrier is supported in an axially inner bearing arranged on the first planet gear carrier, a second way in which the second planet gear carrier is supported in an axially outer bearing arranged in the wall of the housing.