Abstract: The subject is a rotary drive device (1), which has a device housing (7) in which drive means (2) are disposed that are in driving communication with a rotatably supported power takeoff part (4). The power takeoff part (4) has a power takeoff disc (5) that is received at least partly in a bearing receptacle (25) of the device housing (7), the power takeoff disc being surrounded by an annular roller bearing unit (33). The roller bearing unit has a bearing assembly (34) with rolling elements (35) and with one inner and one outer running surface arrangement (37, 38), and the entire bearing assembly (34) is disposed inside the bearing receptacle (25) and is surrounded radially outward by a boundary wall portion (27) of the device housing (7).

Abstract: One embodiment of the present invention is a unique gas turbine engine. Another embodiment is a unique gas turbine engine high speed rolling element bearing system. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for gas turbine engines and high speed rolling element bearing systems for gas turbine engines. Further embodiments, forms, features, aspects, benefits, and advantages of the present application shall become apparent from the description and figures provided herewith.

Abstract: A thrust bearing arrangement for a rotary shaft includes a main bearing mounted on the rotary shaft at a first axial location and an idler bearing mounted on the shaft at a second axial location spaced from the first axial location. Each of the main bearing and the idler bearing has an inner race in contact with the rotary shaft and a floating outer race. A thrust member is disposed between the outer races of the first and second bearings for transmitting axial thrust forces to a machine frame. A spring maintains a preload condition on the bearings.

Abstract: A bearing structure is provided for a linear adjusting device (15) for a cylinder such as, for example, a plate cylinder (3) of a printing press. A linear adjusting device has an outgoing linearly adjustable shaft (16) and is coupled to one of the journals (8).

Abstract: A journal for a frame fork of a bicycle including a sleeve engaged on the frame fork and including a bearing engaged in the upper portion and the lower portion, and a member threadedly engaged on the upper end of the frame fork and pressing against one of the bearings, whereby the frame fork is rotatably and stably supported in the sleeve.

Abstract: The rotary machine includes an automatically-retracting axial abutment system mounted between the rotary shaft of the machine and its case, the abutment system having a displaceable abutment portion that is prevented from rotating, a rotary abutment portion mounted on the displaceable abutment portion by means of a bearing suitable for transmitting axial forces to the displaceable abutment portion, a very stiff flexible device connecting the displaceable abutment portion to the case in such a manner as to enable the displaceable abutment portion to move through a small amplitude in translation along the axis of the rotary shaft, and an axial thrust transmission member for transmitting thrust from the rotary shaft to the rotary abutment portion, the thrust transmission member being shaped to be in contact between the rotary shaft and the displaceable abutment portion when the machine is at rest, and to drive the rotary abutment portion via purely static friction when the machine is rotating and is exerting axi

Abstract: A journal for a frame fork of a bicycle including a sleeve engaged on the frame fork and a bearing engaged in an upper portion and a lower portion respectively, the frame fork including an outer thread formed on an upper end, a member threadedly engaged on the upper end of the frame fork and pressing against one of the bearings, and a cut laterally formed in the member such that the member is separated into two portions, a bolt engaged in an aperture formed in the member and perpendicular to the cut for coupling the two portions together.

Abstract: A method and apparatus for preventing that an open-end spinning rotor becomes inoperative. In an open-end spinning rotor assembly which has a rotor with a fiber collecting groove and a rotor shaft, it is provided that the operability of the open-end spinning rotor after the wearing-out of the rotor shaft in the are of the step bearing surface is restored by the fact that the distance between the fiber collecting groove and the step bearing surface is restored to its predetermined value by the axial shifting of the shaft in the hub of the rotor plate.

Abstract: A reduction gear is shown, which is designed to facilitate assembly of essential parts in a case. The reduction gear comprises a worm; a worm wheel meshed with the worm; a lower case part having a semicylindrical recess which rotatably receives the worm, and an upper case part to be mounted on the lower case part to close the semicylindrical recess. The semicylindrical recess has an opening which is so sized as to permit insertion of the worm into the semicylindrical recess therethrough. A threaded bore is formed in the lower case part, which is merged and aligned with the semicylindrical recess. A bolt is screwed into the threaded bore having its inside end pressed against one axial end of the worm for achieving a stable rotation of the worm in the semicylindrical recess.

Abstract: A housing (1) of a rotary machine comprises a low-pressure side (2) and a high-pressure side (3), working-fluid inlet and outlet channels, and at least one rotor (7), which when the machine is working is urged by a working fluid towards the low-pressure side (2). The rotor includes a thrust balancing arrangement (15, 16) for relieving the load on the thrust bearings (11) of the machine, through the medium of an auxiliary bearing (17) and in dependence on pressure fluid supplied to the thrust balancing arrangement, the pressure of which fluid is contingent on the operating conditions of the machine. A relatively large part of the axial load is taken-up by an auxiliary thrust bearing (17), which is readily replaceable. The auxiliary bearing (17) is mounted on an outermost part of the rotor journal shaft (18), on the high-pressure side (3) of the rotor, between a detachable locking device (27) for the auxiliary bearing (17) and the thrust balancing arrangement.

Abstract: An improved clutch release bearing assembly includes a sliding sleeve providing first and second sliding surfaces respectively facing the bore of a bearing and a guide element extending through the bore, both surfaces minimizing binding, wear or excessive friction between the bearing and the guide element during relative reciprocal motion therebetween. The sleeve, preferably fashioned from plastic, finds particular utility in a clutch release bearing surrounding a transmission shaft retainer or quill tube. The length of the sleeve is such that the bearing may slide on an outer sliding surface for a predetermined distance.

Abstract: The invention relates to an open-end rotor-spinning device with a rotor shaft which is mounted and driven in the wedge-shaped gap between supporting disks and to the free end of which is assigned an axial bearing. A simplified mounting, which also allows the supporting disks to be removed and exchanged while the machine is in operation, is provided because the rotor shaft (1) is mounted at two bearing points, of which one is formed by supporting disks (2, 3) arranged in the vicinity of the spinning rotor (10) and the second is a bearing (5) which absorbs axial and radial forces and which receives the free end (11) of the rotor shaft (1). An increase in the operating speed of the spinning rotor (10) without an increase in the running speed of the drive means (6) is achieved as a result of a reduction of the diameter of the rotor shaft (1) in the region of the drive means.

Abstract: An improved thrust bearing arrangement for locating the drive shaft of a marine drive. In accordance with the invention, the thrust bearing is fixedly supported between the lower unit and a supporting housing and the location of the drive shaft is controlled by a shim that is positioned between a flange on the drive shaft and the inner race of the thrust bearing.

Abstract: A driving apparatus for effecting linear movement of an industrial robot comprises a slide member axially slidably disposed within a frame, a ball nut secured to the slide member and a ball screw threaded through the ball nut and rotationally driven relative to the ball nut to effect linear movement of the ball nut along the ball screw accompanied by linear movement of the slide shaft. A bracket is adjustably mounted on the frame for rotatably supporting the shaft of the ball screw. The bracket can be displaced relative to the frame in the transverse direction of the slide member to align the axis of the ball screw with the axis of the slide member during assembly of the apparatus. A thrust bearing is disposed between the shaft of the ball screw and the bracket to absorb radial displacement and strain of the ball screw shaft.

Abstract: An improved mounting arrangement for a ball nut drive assembly for an electric assist steering system is disclosed. The steering system includes a housing surrounding at least a portion of a steering member having rack teeth thereon, a ball-nut drive assembly circumscribing a thread portion of the steering member for axially driving said steering member upon rotation of the ball-nut drive assembly, an electric assist motor for driving said ball-nut assembly into rotation in response to a control signal and an electronic control unit for providing said control signal in response to a measured amount of driver input torque. The steering member is radially supported relative to the housing at two spaced apart locations. The ball-nut drive assembly is axially spaced from the electric assist motor and connected thereto by a connection tube. Thrust bearings are located at each end of the ball-nut drive assembly and are operatively positioned between the ball-nut drive assembly and the housing.

Abstract: A height adjusting device for machines or machine elements comprises three adjustment members positioned atop one another and together determining two sets of opposing surfaces. These surfaces allow a gyroscopic movement of the uppermost adjustment member, and the height of the height adjusting device can be adjusted stepwise, one of the two opposing surfaces in the first set of surfaces comprising one or more aligned supporting projections. These projections can cooperate selectively and tiltably with one or more recesses in a row of recesses in the second surface of the first set of surfaces. The depth of the recesses in said row of recesses varies stepwise. The surfaces of the second set of surfaces are provided with cooperating secondary projections and secondary recesses. The line on which the secondary projections are positioned forms an angle of substantially 90.degree. with the line on which the supporting projections are positioned.

Abstract: A device for fixing a shaft journalled in a roller bearing, in an axial direction of the shaft, comprising a resilient element which presses the bearing against a supporting surface of a bearing housing and provides a measure of radial adjustment of the shaft in the housing. The fixing device also includes a screw-threaded member, which in its screwed-in position limits axial movement of the roller bearing.

Abstract: A rotary machine carried on a vehicle has a rotary part carried on a fixed part by means of a rolling bearing. The parts of the bearing can be separated by a lifting jack when the vehicle is travelling to reduce vibration and wear. Devices responsive to the pressure supplied to the jack stop the motor driving the rotary part when a first threshold pressure is exceeded, prevent ignition of the vehicle engine until a second threshold pressure is exceeded, and control the pump feeding the jack to maintain a third threshold value which is above the second threshold pressure.

Abstract: There is disclosed herein a bearing for highprecision transport spindles used in machines for electrical reproduction technology, machine tools, measuring installations and the like, wherein axial movement due to bearing tolerances are eliminated by the bearing device of this invention. The radial and axial bearing of the spindle are decoupled from one another by means of the bearing device, thereby eliminating the axial dislocation errors.