An adaptor for connecting a generator to a prime mover. The adaptor includes a first flange member for connection to the prime mover, a second flange member for connection to the generator, and a plurality of angled cross members between the first and second flange members. By providing a plurality of angled cross members between the first and second members, the adaptor may use less material for a given stiffness.

A hub assembly for a hybrid module having a first and a second connection partner arranged coaxially with one another, the first connection partner has a first bearing portion and the second connection partner has a second bearing portion, and a plurality of connecting elements. The first and the second bearing portion have receiving openings for receiving the connecting elements. The first and the second connection partner are prepositioned with respect to one another via a form-fitting connection such that the receiving openings in the first and the second bearing portion are each oriented in pairs in a positionally correct manner with respect to one another in the circumferential direction about the main axis H.

A hub assembly for a hybrid module having a first and a second connection partner arranged coaxially with one another, the first connection partner has a first bearing portion and the second connection partner has a second bearing portion, and a plurality of connecting elements. The first and the second bearing portion have receiving openings for receiving the connecting elements. The first and the second connection partner are prepositioned with respect to one another via a form-fitting connection such that the receiving openings in the first and the second bearing portion are each oriented in pairs in a positionally correct manner with respect to one another in the circumferential direction about the main axis H.

A sensor for measuring a linear/rotating movement (LRM) of a measurement object (MO): one sensor element (SE) to detect the LRM of the MO and emit measuring signals (MS), the sensor element having encoder element (EE) and sensitive element (SeE), the SE detecting a relative movement between the EE and SeE; an electronic evaluator to evaluate the MS of the SE; a first shaft (FS) coupled to the EE by a bearing; a second shaft (SS) coupled to the MO by a bearing; the FS/SS, by a releasable connection, are mutually coupled for rotation coaxially; the bearing has central axis (CA) and cylindrical bearing face (CBF) in the axial direction (AD) parallel with the CA has an axial extent (AE), and in the radial direction (RD) perpendicular to the CA has a bearing face (BF) internal diameter (ID); the connection has a first axial/radial toothing (FT) on one FS end, and a second axial/radial toothing (ST) on one SS end, the FT/ST mutually engaging form-fittingly; the connection in the RD is within the BF ID, and in the AD is within the AE of the BF; and the FS by another end facing away from the FT, and the SS by another end facing way from the ST, protrude axially from the BF.

A bracket comprising a first planar portion having at least one bolt hole, a second planar portion angularly spaced apart from the first planar portion. The bracket may include an intermediate portion integral with the first planar portion and the second planar portion. The second planar portion includes projections and bolt holes, the projections are operable to interlock with cut-outs of flanges.

A multi jack tensioner for applying tension to a fastener, the tensioner comprising: a body having at least one section, including a first body section formed to engage an elongate fastening member or integrally formed therewith; a load bearing member for applying force to a workpiece to be fastened and arranged for location about said fastening member adjacent the body; a plurality of pressure chambers between the load bearing member and the body arranged to displace the at least one body section axially relative to the load bearing member in response to hydraulic pressure; and a plurality of jack bolts extending between the body section and the load bearing member for further displacing the first body section from the load bearing member; wherein application of hydraulic pressure to one or more of the plurality of pressure chambers displaces the first body section from the load bearing member thereby tensioning said fastening member and whereby subsequent tensioning of the fastening member is applied by operation of the jack bolts.

There is provided a releasable joint between two component flanges (1, 3). The flanges (1, 3) have a number of teeth (2) on each part that is pressed into contact by clamps, screws or other means. The releasable joint assembly is suitable for establishing a robot joint between a first and second component each having interlocking annular flange with respective contact surfaces, and where these flanges are held in place by a clamp (5).

A spindle assembly for connecting a drill string to a rotational drive for use in a horizontal directional drilling operation. The assembly comprises a saver sub attached to the rotational drive, and a drive chuck for connection to the drill string. The drive chuck and saver sub form a torque-transmitting connection by engaging through a seat in the saver sub and an engagement point on the drive chuck. Dowel pins may be used to rotationally lock and provide the engagement between the saver sub and the drive chuck. A collar may thread to the saver sub and cause an interference fit by engaging the drive chuck at a shoulder.

A spindle assembly for connecting a drill string to a rotational drive for use in a horizontal directional drilling operation. The assembly comprises a saver sub attached to the rotational drive, and a drive chuck for connection to the drill string. The drive chuck and saver sub form a torque-transmitting connection by engaging through a seat in the saver sub and an engagement point on the drive chuck. Dowel pins may be used to rotationally lock and provide the engagement between the saver sub and the drive chuck. A collar may thread to the saver sub and cause an interference fit by engaging the drive chuck at a shoulder.

A gas turbine engine rotor assembly comprises a torque tube, turbine stage and stiffening mass. The torque tube comprises a shaft extending from a forward location to an aft end, and a shaft fastening flange disposed at the aft end. The turbine stage comprises a disc, a disc adapter extending forward from the disc, and a disc fastening flange extending from the disc adapter and couplable to the shaft fastening flange at an interface. The stiffening mass is positioned proximate the interface to reduce operational stress in the torque tube. A method of reducing operational stress in a rotor assembly comprises de-stacking a rotor stack, separating a first stage rotor disc adapter from a torque tube, attaching a stiffening mass to an inner diameter of one or both of the disc adapter and the torque tube, attaching the disc adapter to the torque tube, and re-stacking the rotor stack.