A plain bearing for a steering spindle of a steering column for a motor vehicle. The bearing includes an inner ring with an axially continuous bearing opening for slidably receiving the steering spindle. A prestressing element is configured to exert a prestressing force on the inner ring to clamp the inner ring on the steering spindle and thereby to assign a defined, uniform braking torque.

A torque-transmitting apparatus for a drive assembly includes: a first coupling device for transmitting torque and compensating a shaft offset, and a second coupling device for transmitting and limiting torque, the first and second coupling devices being connected in series. The second coupling device includes an inner hollow part and an outer hollow part. The inner hollow part radially outwardly includes a first frictional surface and the outer hollow part radially inwardly includes a second frictional surface, which is connected to the first frictional surface and interacts therewith. The inner hollow part includes a fillable pressure chamber.

A rotating shaft coupling assembly includes a first rotating shaft defining a step at a longitudinal end. A second rotating shaft has a longitudinal end to be received against the step of the first rotating shaft such that the first and second rotating shafts form an overlapping portion. A coupler sleeve including a shape memory alloy is disposed about at least the overlapping portion of the first and second rotating shafts to couple the shafts together.

A shaft-hub connection with a shaft that includes a section with external splines, and a hub that includes internal. The hub with its internal splines is assembled in a positively joined manner with play on the section of the shaft including the external splines. The shaft in the section includes the external splines has a recess regularly inside of the external splines, in which a clamping body is inserted neutralizing the play between shaft and hub.

A shaft assembly comprises: a hollow shaft with an axis of rotation, and a hub body connected to the hub body in a force-locking manner, wherein the hollow shaft comprises, viewed in cross-section, a circumferentially closed wall with a plurality of circumferentially distributed support portions in abutting contact with the hub body and with spring portions spaced from an inner circumferential face of the hub body, wherein inner surface regions of the spring portions lie on a smaller radius around the axis of rotation than inner face regions of the support portions, wherein the wall comprises a varying thickness over the circumference, wherein the thickness in the support portions is smaller than in the spring portions.

Briefly, implementations of claimed subject matter relate to methods and devices for coupling a first rotating shaft to a second shaft. In a particular implementation, an end of a plurality of resilient fingers of a resilient structure may be radially displaced to permit positioning of the resilient structure over a first shaft. An inwardly-directed portion of each of the plurality of the resilient fingers of the resilient structure may be secured to a channel located on an inner surface of a second shaft. After securing the resilient structure to the second shaft, the one or more resilient fingers of the resilient structure may be positioned within a slotted ladder ring encircling the first shaft.

A method of making an axle sleeve includes forming a main body comprising a cylinder and forming an expansion member whereby a diameter of the main body may be varied. The method includes cutting an inner helical cutout comprising a first slit defined through the main body and extending helically from an inner edge of the main body, cutting an outer helical cutout comprising a second slit defined through the main body and extending helically from an outer edge of the main body, forming an inner edge remaining portion comprising an annular section of the main body unbroken by the inner helical cutout, and forming an outer edge remaining portion comprising an annular section of the main body unbroken by the outer helical cutout.

A pinion to be fitted on a turbine axis of an internal combustion engine, wherein said pinion is made in a single piece, equipped with an axial thread to screw it on said axis of the turbine, wherein an axial end of the pinion integrates/defines a disc spring.

A method and apparatus for transmitting torque in a downhole assembly. The apparatus includes a driver sub with an annular body defining an internal surface, a portion of the internal surface of the driver sub defining a contact surface; a driveshaft extending within the driver sub, the driveshaft including an elongated body defining an external surface, a portion of the external surface of the driveshaft defining a contact surface; a first insert disposed between the contact surfaces of the driver sub and the driveshaft, respectively, the first insert including an annular body defining internal and external surfaces, a portion of the internal surface of the first insert defining an inside contact surface, and a portion of the external surface of the first insert defining an outside contact surface; and a first shape-memory alloy cladding bonded to the inside contact surface of the first insert.

A clutch for a rotary shaft includes an annular pressure chamber with a sleeve surface engaging a surface to drivingly connect the shaft to the clutch, and further includes a trigger device and a channel system activatable by the trigger device upon a relative angular movement between the shaft and the chamber to release the shaft from the housing. The trigger device has a cam wheel having a constant first radius across a first angular interval and a second, smaller, radius across a second angular interval. The cam wheel is supported on an envelope surface within the first angular interval and rotating in relation to the envelope surface when the shaft rotates in relation to the housing. When a contact point reaches the second angular interval, the cam wheel is displaced to activate said channel system.