A journal receptacle for a wobbler connection, in particular for the rotationally secure connection of a drive shaft, such as an articulated shaft, to a roll of a rolling mill. A wobbler hub has a receiving opening that extends in an axial direction of the wobbler hub, for the positive-locking reception of a roll journal. The receiving opening has an inner surface, extending in the axial direction and over the periphery and at least one torque transmission surface. The latter is clad at least partially with at least one wearing plate. The at least one wearing plate is held in a positive-locking manner on the torque transmission surface by at least one clamping piece, which extends in the axial direction on the torque transmission surface and which is connected to the torque transmission surface by a connecting device.

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).

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).

A dual bushing and hub assembly for mounting sheaves, sprockets, gears, couplings and similar machine elements on a shaft, wherein two types of tapered bushings are used, the bushings are used within a single hub which is compatible with both bushings. The dual bushing locking screws for tightening the bushings securely in place on the shaft and in the hub bore are both accessible from the same side of the hub.

A dual bushing and hub assembly for mounting sheaves, sprockets, gears, couplings and similar machine elements on a shaft, wherein two types of tapered bushings are used, the bushings are used within a single hub which is compatible with both bushings. The dual bushing locking screws for tightening the bushings securely in place on the shaft and in the hub bore are both accessible from the same side of the hub.

The present invention relates to a coupling assembly (1) for fixedly connecting a rotational member (2) to an end section (3) of a hollow shaft (4). It may e.g. be used for connecting the main shaft (4) of a wind turbine (28) to a planet carrier (2) of a coaxial planetary gear system. The coupling assembly (1) comprises a shrink ring (6) and a coupling element (7). The shrink ring (6) has an outer diameter corresponding to the inner shaft diameter (d) and a conical surface (14) for connecting the shrink ring (6) and the coupling element (7). The coupling element (7) comprises an annular groove (18) with a groove diameter corresponding to the outer shaft diameter (D) and a conical surface (20) matching the shrink ring (6). When in use, the hollow shaft (4) is arranged in the groove (18) and connected to the coupling element (7) by axially extending bolts (9). Hereby a torque can be transferred by both the shrink connection and the bolts fastened into the hollow shaft. The coupling element (7) preferably comprises an outer flange (26) to which the rotational member (2) can be fastened.

The present invention relates to a coupling assembly (1) for fixedly connecting a rotational member (2) to an end section (3) of a hollow shaft (4). It may e.g. be used for connecting the main shaft (4) of a wind turbine (28) to a planet carrier (2) of a coaxial planetary gear system. The coupling assembly (1) comprises a shrink ring (6) and a coupling element (7). The shrink ring (6) has an outer diameter corresponding to the inner shaft diameter (d) and a conical surface (14) for connecting the shrink ring (6) and the coupling element (7). The coupling element (7) comprises an annular groove (18) with a groove diameter corresponding to the outer shaft diameter (D) and a conical surface (20) matching the shrink ring (6). When in use, the hollow shaft (4) is arranged in the groove (18) and connected to the coupling element (7) by axially extending bolts (9). Hereby a torque can be transferred by both the shrink connection and the bolts fastened into the hollow shaft. The coupling element (7) preferably comprises an outer flange (26) to which the rotational member (2) can be fastened.

Disclosed are an electric toothbrush head and a shaft coupler configured to connect a toothbrush head and a power output shaft. The shaft coupler includes a connection member (1) and an elastic member (2). The connection body (1) of the connection member (14) is disposed with two openings (143, 144) extending along an axial direction, the two openings (143, 144) are configured to divide at least one section of the connection body (14) into two opposite clamping portions (141, 142) along the axial direction and the elastic member (2) is sleeved at an outer periphery of the two clamping portions (141, 142) for applying an elastic force which is capable of making the two clamping portions (141, 142) vibrate the power output shaft in the two clamping portions (141, 142). The toothbrush head includes a bar and the shaft coupler.

Disclosed are an electric toothbrush head and a shaft coupler configured to connect a toothbrush head and a power output shaft. The shaft coupler includes a connection member (1) and an elastic member (2). The connection body (1) of the connection member (14) is disposed with two openings (143, 144) extending along an axial direction, the two openings (143, 144) are configured to divide at least one section of the connection body (14) into two opposite clamping portions (141, 142) along the axial direction and the elastic member (2) is sleeved at an outer periphery of the two clamping portions (141, 142) for applying an elastic force which is capable of making the two clamping portions (141, 142) vibrate the power output shaft in the two clamping portions (141, 142). The toothbrush head includes a bar and the shaft coupler.

A first embodiment of a torque tube coupler may include an outer body that includes a first abutting surface and a second abutting surface adjacent to the first abutting surface. Set screws may be inserted into one or more channels of the first abutting surface. Tightening the set screws may force the abutting surfaces away from each other and the outer body to press against an inner surface of a torque tube. Another embodiment of the torque tube coupler may include a central ring sized based on a size of a torque tube. The torque tube coupler may also include a set of fingers that extend away from a first side of the central ring and are shaped to flex radially outward. The torque tube coupler may include a core disposed within the set of fingers that, when drawn towards the central ring, causes the fingers to flex radially outwards.