Abstract: The disclosure relates to a control device, in particular in an electromechanical camshaft adjuster, comprising an electric motor and a control transmission coupled to the electric motor via a coupling element and designed as a harmonic drive. A two-armed wire coupler is provided as the coupling element, the arms of which engage in openings of an inner ring of a waveform generator of the control transmission, and the wire coupler has a winding which is wound around the motor shaft of the electric motor in a non-rotating manner.

Abstract: An electromagnetic forming device for an aluminum tube member, the electromagnetic forming device including: a jig plate in which a support member that has a through hole has been fixed to a substrate; and a tube insertion mechanism that inserts a tube member into the through hole in the support member. The electromagnetic forming device also includes: a coil unit that has an electromagnetic-forming coil part; a coil movement mechanism that supports the coil unit; a current supply part that supplies current for electromagnetic forming to the electromagnetic-forming coil part; and a jig plate transport mechanism that transports the jig plate from a tube insertion stage ST1 to a tube expansion stage ST2.

Abstract: A sliding module having a sliding sleeve and at least one cam segment having at least one cam. The sliding sleeve has a positioning section for positioning the cam segment fixedly against rotation and displacement. The positioning section includes a surface structure on the outer circumferential face of the sliding sleeve for producing a press-fit connection between the cam segment and the sliding sleeve. A stop region is provided configured to limit an axial movement of the cam segment.

Abstract: Disclosed is a method of manufacturing a sliding cam assembly. In particular, a requirement for wear resistance of a hollow tubular portion in which sliding takes place can be satisfied due to a cam piece being fixed to the hollow tubular portion by diffusion bonding while the sliding cam assembly repeatedly slides along a shaft, and each component can be separately machined and combined, thus minimizing an amount which is wasted at the time of machining, reducing the machining time, and rendering a separate heat treatment of a cam piece unnecessary.

Abstract: The invention relates to a method for producing a composite component (12). At least one shaft (2) and at least one sintered part (1), preferably in the form of a rotor or a cam, are assembled into the composite component. In order to assemble the composite component, at least the following steps are carried out: —introducing the shaft (2) into a continuous bore (3) of the sintered part (1) and —calibrating the sintered part (1) at least by means of a calibrating die (4), furthermore preferably with the simultaneous application of an axial force onto the sintered part (1) by means of at least one upper punch (5) and at least one lower punch (7), wherein the shaft (2) can be found in the bore (3) of the sintered part (1) at least temporarily during the calibration process. The invention further relates to a composite component (12).

Abstract: Reciprocating-piston internal combustion engine having a crank mechanism, with at least one cylinder head, the intake and exhaust ducts of which are controlled by in each case at least one gas exchange valve which is configured as an intake or exhaust valve, which gas exchange valves can be actuated by cams of at least one camshaft and by transmission elements which are driven by said cams, wherein the cams are configured as sliding cams with at least two cams per sliding cam unit, which sliding cams are arranged via internal splining on an externally splined basic shaft such that they are fixed so as to rotate with it but can be displaced axially, at least one device which is fixed to the internal combustion engine for displacing the sliding cam unit into different axial positions via displacement grooves on the circumference of the sliding cam unit which interact with an actuator pin, and bearings for fixing the camshaft radially and axially on a component of the internal combustion engine, wherein the basi

Abstract: The invention relates to a method for the material-removing processing of an adjustable camshaft which has a shaft body, wherein at least a first component of the camshaft can move axially and/or in the circumferential direction with respect to the shaft body, wherein a gap which permits the movement is provided between the shaft body and the first component, and wherein in order to protect the first moveable component during the material-removing processing a protection apparatus which has at least one fluid duct is placed on the shaft body and fluid is applied to it. According to the invention, the protection apparatus is arranged laterally with respect to the first moveable component in such a way that at least some of the fluid is directed laterally onto the first component and into an intermediate space between the protection apparatus and the first component, and wherein the first component is exposed in the radial direction.

Abstract: Embodiments in accordance with the present disclosure may provide a camshaft having a central oil passage and a radial passage to supply oil from the central passage to a bearing surface. The camshaft may include a filter disposed within the central passage which may allow oil to pass through the radial passage to the bearing surface, and which may prevent particles larger than a predetermined size to pass to the bearing surface.

Abstract: The present disclosure relates to a lightweight camshaft and method for producing the same. The method includes the steps of slidably arranging a plurality of support elements onto a support tube, winding the support tube and support elements with at least one fiber layer, impregnating the at least one fiber layer with a matrix material so as to form a fibre composite, curing the fibre composite, and slidably arranging each of a plurality of functional elements, including at least a plurality of cam elements, onto a corresponding support element, such that the support elements are fixedly seated at least partially inside a passage defined through the functional elements.

Abstract: A method for joining structural elements onto a shaft may include generating at least one projection at a respective joining position on the shaft, sliding at least one of the structural elements over at least one projection and maintaining the structural elements in at least on projection.

Abstract: A multiple variable valve lift apparatus may include a camshaft rotating by drive of an engine, at least two cam portions slidably disposed on the camshaft and rotatable together with the camshaft, and forming a high cam and a low cam, a valve opening/closing unit operated by one of the high or low cams, at least two operating unit movable along the camshaft to move the at least two cam portions along the camshaft, a control portion selectively moving the operating unit along the camshaft, a pin disposed at the control portion, and a guide rail formed in a groove shape on an exterior circumference of the operating unit such that the pin is insert therein and guiding relative movement of the pin according to rotation of the camshaft and the operating unit such that the operating unit is moved along an axial direction of the camshaft by the pin.

Abstract: The invention relates to a method for the simplified and accurately positioned fixing of a camshaft module with a camshaft and bearing blocks on a cylinder head. The bearing blocks, aligned in axial direction and with respect to an angle, may be fastened on the camshaft. The camshaft may be aligned via two alignment elements with respect to the cylinder head. Further, the individual bearing blocks may be screwed tightly with the cylinder head with simultaneous or interim rotation of the camshaft.

Abstract: A variable valve lift apparatus that has a simplified configuration is provided. The apparatus includes a camshaft and first and second cam forming portions inserted with the cam shaft to rotate together with the camshaft and be movable in a shaft direction of the camshaft, and includes an upper cam and a lower cam. A valve opening/closing device is actuated by the upper cam or the lower cam. First and second moving units are inserted with the camshaft and are movable together with the cam forming portions. First and second actuating units selectively move the moving units in the shaft direction of the camshaft and are mounted on a mounting portion. A positioning unit is connected with the moving units, and has first and second grooves. A stopper unit is mounted on the mounting portion, and is selectively inserted into the grooves to align the cam forming portions.

Abstract: An internal combustion engine may include at least one camshaft mounted via at least one bearing with at least one phase adjuster. The at least one bearing may be a rolling bearing. An oil feed ring may surround the camshaft adjacent to the rolling bearing, wherein the oil feed ring may have at least one external annular channel and at least one first radial bore aligned with a second radial bore in the camshaft. An outer diameter of the oil feed ring may be smaller than an outer diameter of the rolling bearing. An oil supply of the at least one phase adjuster may be introduced via an oil gallery defined in a cylinder head through the annular channel through the second radial bore into the camshaft.

Abstract: In an internal combustion engine a valve actuation control arrangement is provided, which has at least three independently axially displaceable cam elements and a switch gate which has at least one continuous gate track for displacing the at least three cam elements sequentially one after the other.

Abstract: A camshaft module may include a shaft and at least one functional element. The functional element may have a functional element opening through which the shaft passes. The functional element may be fixed to the shaft in a seat portion of the shaft. The camshaft module may include a bearing arrangement in which at least one bearing portion of the shaft is mounted. The shaft may include at least one adjusting portion axially adjacent to the at least one seat portion. The adjusting portion may have a first outer diameter smaller than a second outer diameter of the seat portion. The functional element opening may have an inner diameter smaller than the second outer diameter of the seat portion and larger than the first outer diameter of the adjusting portion such that a press fit fixing is realized between the functional element and the seat portion of the shaft.

Abstract: A camshaft adjusting device of an internal combustion engine having two camshafts supported concentrically to one another, the axial position of the outer camshaft being determined by an axial bearing and the outer camshaft interacting with a sealing cover of an adjusting apparatus. A first cam is rotationally fixed to the outer camshaft. A second cam is rotationally fixed to the inner camshaft, which can be rotated relative to the outer camshaft by the adjusting apparatus, wherein the inner camshaft has a locking contour on at least one section of the outside of the inner camshaft, which locking contour engages in a form-closed manner in a mating contour on at least one section of the inside of the outer camshaft in order to fix the axial position of the inner camshaft relative to the outer camshaft.

Abstract: A shaft, such as a camshaft for use in the internal combustion engine of a motor vehicle, in which the shaft includes a basic shaft body, a plurality of functional bodies, such as cams, mounted in axially spaced positions on the basic shaft body, and at least one balancing element mounted on the basic shaft body, in which the at least one balancing element is produced separately from the basic shaft body and from the functional bodies, and the functional bodies and the at least one balancing element are subsequently mounted on said basic shaft body, for example, by axial press fitting.

Abstract: An exemplary camshaft for a high pressure common rail oil pump and a manufacturing method thereof is provided. The method achieves interference assembly between the mandrel and cam piece, and satisfies anti-rotating torque of the cam piece relative to the mandrel while ensuring the surface hardness of the cam piece. The camshaft includes a mandrel and a cam piece arranged on the mandrel. The anti-rotating torque of the cam piece relative to the mandrel is at least 500 NM after the cam piece and the mandrel are connected by interference fit by hot charge practice. Surface hardness of the cam piece 1 is at least HRC58. The method includes performing interference assembly of the cam piece and the mandrel while performing quenching heat treatment on the cam piece, then quickly cooling the cam piece equipped with the mandrel at the cooling stage during the quenching heat treatment.

Abstract: A dual independent phaser, including: one only single locking cover; a first phaser section including a first stator, a first rotor, a first plurality of chambers formed by a first rotor and the first stator, and first locking pin non-rotatably engaged with the first rotor and axially displaceable to non-rotatably connect the first rotor and the one only single locking cover; and second phaser section including second stator, a second rotor, a second plurality of chambers formed by a second rotor and the second stator, and second locking pin non-rotatably engaged with the second rotor and axially displaceable to non-rotatably connect the second rotor and the one only single locking cover.

Abstract: A method for manufacturing an assembled camshaft for valve-controlled internal combustion engines, in which at least one cam disc with a base circle region and cam region is machined on the running surface and has a cam-disc recess, includes shrinking the cam disc onto a corresponding shaft designed with a defined dimensional overlap by cooling the shaft and heating the cam disc. Temporally before being shrunk onto the shaft, the at least one cam disc is clamped by a clamping device such that a tension force acts on the recess wall region, which defines the cam-disc recess, the tension force corresponding to a predetermined extent to the state of stresses and/or deformation state of the recess wall region after the operation of shrinking the cam disc onto the corresponding shaft. The running-surface machining of the at least one cam disc takes place when the cam disc is clamped by the clamping device.

Abstract: A camshaft assembly, comprising a camshaft (2) having a receiving space (6) in an interior thereof, at least some sections of the assembly being made of a magnetizable material, and an electromagnetic actuating unit (4) for actuating an actuating partner (5), comprising a control valve of a camshaft adjuster (3), a coil winding (8) and an armature (7) for cooperating with the actuating partner (5), the armature being adjustable by energizing the coil winding (8).

Abstract: A camshaft guide member is provided for guiding a camshaft through a plurality of axially aligned camshaft bearings in an engine along a camshaft rotation axis. The camshaft guide member includes a first end, a second end and a contact surface extending between the first end and the second end. The camshaft guide member further includes a connecting portion configured to attach the contact surface to the engine between at least a pair of camshaft bearings.

Abstract: A camshaft phaser, including: a drive sprocket; a phaser section including a rotor with a first radially aligned channels, first axially aligned channels connected to the first radially aligned channels, and chambers formed by the rotor and a stator; and a rotor nose separately formed from the phaser section and non-rotatably connected to the phaser section, extending past a front side of the phaser section in an axial direction, and including second radially aligned channels and second axially aligned channels connected to the second radially aligned channels and the first axially aligned channels. The second radially aligned channels are arranged to receive fluid for the plurality of chambers to phase the phaser. The first radially aligned channels and the first and second axially aligned channels form respective flow paths for the fluid from the second radially aligned channels to the plurality of chambers.

Abstract: A cam unit for arranging on a camshaft main part of a camshaft in a rotationally fixed and axially movable manner. The cam unit includes a tubular sleeve main part and at least one cam element that lies on the sleeve main part in a rotationally fixed and non-movable manner. The sleeve main part and the at least one cam element are designed as individual parts that can be separately produced and subsequently assembled.

Abstract: A machining device for machining crankshafts has a rotationally driven disk-shaped base body with blade inserts arranged peripherally thereon. A first supply line for a cryogenic cooling medium is arranged concentrically with the axis of rotation and is thermally insulated in at least some sections. The tool has a plurality of second supply lines for the cryogenic cooling medium running across the axis of rotation and leading to the blade inserts, the second supply lines each being thermally insulated in at least some sections. A distributor unit connects the first supply line to at least one of the second supply lines for supplying the cryogenic cooling medium to at least one of the blade inserts. The cryogenic cooling medium can be conducted directly to the blade inserts which are engaged with the crankshaft that is to be machined.

Abstract: A camshaft assembly includes a base shaft extending along a longitudinal axis. The base shaft is configured to rotate about the longitudinal axis. The camshaft assembly further includes a series of lobe packs mounted on the base shaft. The lobe pack includes a first cam lobe, a second cam, and a third cam lobe. The lobe pack further includes a barrel cam defining a control groove. The camshaft assembly further includes an actuator including an actuator body and at least one pin movably coupled to the actuator body. The lobe pack is configured to move axially relative to the base shaft between a first position, a second position, and a third position. These three lobe pack positions are used to define three discrete valve lift profiles for the intake or exhaust valves in the cylinder. The lift profiles can be different for each engine valve.

Abstract: A camshaft that is assembled or is to be assembled carries at least one cam element that is to be disposed on a main camshaft body to be rotationally fixed and axially movable, and at least one cam element to be disposed on the main camshaft body so as to be rotationally fixed and axially immovable. The main camshaft body has first axial sub-sections having a multi-tooth profile, so that due to a positive connection between shaft and hub the cam element to be disposed in the sub-section so as to be axially movable is seated so as to be rotationally fixed. The main camshaft body also has second axial sub-sections having an extended diameter so that by a non-positive connection between shaft and hub it is ensured that the cam element to be disposed in the sub-section is seated so as to be rotationally fixed and secured against movement.

Abstract: A concentric cam shaft phaser, including: a first camshaft; a second camshaft located radially inside of the first camshaft; a control gear in contact with the first camshaft and fixedly connected to the first camshaft by a weld, a press fit, or a shrink fit; a rotor non-rotatably connected to the second camshaft; and a stator non-rotatably connected to the control gear.

Abstract: The invention relates to a camshaft adjusting device (1) for an internal combustion engine and to a method for producing a camshaft adjusting device having a stator wheel (10) and a rotor wheel (11), wherein the rotor wheel (11) has a first body part (19) and a second body part (20), wherein a joining surface (19a) of the first body part (19) and a joining surface (20a) of the second body part (20) are joined to one another, and wherein depressions (21, 22) are formed in at least one of the joining surfaces (19a, 20a) in order to form the fluid ducts (17, 18) at least in sections.

Abstract: A camshaft for an internal combustion engine may include a shaft and at least one component that is joined to said shaft. The component may be connected via a joint surface of the component to a joint surface of the shaft. At least one of the joint surface of the component and the joint surface of the shaft may have a predefined roughness only partially on load-critical regions.

Abstract: The invention relates to a camshaft, especially for motor vehicle engines, comprising a hollow outer shaft (1) and an inner shaft (2) arranged coaxially in the outer shaft (1) and mounted in such a way that it can rotate in relation to the outer shaft (1). Said camshaft also comprises first cams (3a) arranged on the outer shaft (1) in a rotationally fixed manner, and second cams (3b) that are arranged on the outer shaft (1) and fixed to the inner shaft (2). According to the invention, a supporting element (7) is provided on at least one of the end regions of the inner shaft (2), said supporting element projecting past the outer shaft (1) in the radial direction. An outer peripheral surface (8) of the outer shaft (1) and an associated inwardly facing surface (9) of the supporting element (7) form a radial bearing.

Abstract: Disclosed herein is a method of manufacturing a camshaft. Particularly, the present invention relates to a method of manufacturing a camshaft which includes a single sintering operation and a brazing operation, thus reducing the time for manufacturing.

Abstract: An inner hole to which a driving shaft is inserted is formed in a cam piece of a camshaft, and a plurality of grooves extending in the insertion direction of the driving shaft are formed in the inner hole. The driving shaft is inserted into the inner hole with the cam piece heated to expand the diameter of the inner hole. By reducing again the diameter of the inner hole by cooling it in this state, an outer circumferential surface of the driving shaft is pressed and raised by the inner hole and enters the groove, by which the cam piece is firmly fixed onto the driving shaft.

Abstract: A flexible coupling linkage (14) anchors a housing (16) that at least partially encloses a rotor (18) of an actuator (22) against rotation, while allowing free movement of the housing (16) in two other planes relative to the rotor (18) to match an angular rotational plane orientation of the rotor (18) to prevent binding between the housing (16) and the rotor (18) due to misalignment. The flexible coupling linkage (14) can be selected from a group of pivot joints (24a, 24b) including at least one of a pivot pin joint (30, 34), a ball-and-socket joint (32), and any combination thereof.

Abstract: An engine assembly includes an engine structure, a camshaft supported on the engine structure, a first cam phaser coupled to a first axial end of the camshaft, and a locating pin. The camshaft includes a first shaft, a second shaft, a first cam lobe and a second cam lobe. The first shaft defines a first opening. The second shaft is supported within the first shaft and defines a second opening. The first cam lobe is located on and fixed for rotation with the first shaft. The second cam lobe may be located on the first shaft and fixed for rotation with the second shaft. During assembly, the first cam phaser is located on the camshaft and the locating pin may be inserted through the first and second openings to rotationally fix the first and second shafts. The first cam phaser is then secured to the camshaft.

Abstract: A variable valve actuation system in one form includes a rocker coupled with a valve stem at one end and a cam follower at the other end. The rocker is operable to rotate about a fixed axis and the cam follower includes a set of lower rollers operable to follow one cam lobe and an upper roller operable to follow another cam lobe. A leaf spring can be used to couple the cam follower with the rocker. A cam shaft can have a nested configuration that includes an inner shaft, an intermediate tube, and an outer tube. Cam lobes can be fastened to the cam shaft by fastening through each of the inner shaft, intermediate tube, and outer tube. The cam lobes can be attached by at least two devices inserted from either side of the cam shaft and that are not inserted at least through the inner shaft.

Abstract: A variable cam timing phaser (10) includes a fluid transfer assembly with at least one of a fluid transfer sleeve (72) having a plurality of pressurized fluid passages (74a, 74b, 74c, 74d), and a fluid transfer plate (60) having a plurality of pressurized fluid passages (62a, 62b, 62c, 62d). Each passage (74a, 74b, 74c, 74d) extends in fluid communication with a corresponding circumferentially spaced annular groove segment portion (74f, 74g, 74h, 74i) for selective communication with first and second vane type hydraulic couplings (40, 50) depending on an angular orientation of the fluid transfer sleeve (72) during rotation. Each passage (62a, 62b, 62c, 62d) extending from a corresponding centrally located port (64a, 64b, 64c, 64d) in fluid communication with a radially extending passage portion (66a, 66b, 66c, 66d) and with an arcuately extending passage portion (68a, 68b, 68c, 68d).

Abstract: A method may include thermally joining at least one of a non-round functional component to a shaft and a cam to a camshaft, elastically compressing the functional component during introduction of a round through-opening, and creating a through-opening which is not round when the functional component is unstressed and at least minimizes an asymmetrical deformation of the shaft after the thermal joining of the functional component to the shaft.

Abstract: A camshaft contains a support tube, on which components including at least one cam are arranged at predetermined locations. The support tube extends at least partially through a hole in the components, and wherein a press fit is produced between the support tube and the components by hydroforming. Accordingly, at least one locally formed material formation is provided between the support tube and the hole. Via the material formation, the component is retained at the location in a desired orientation relative to the support tube in such a way that the support tube having the mounted components can be fed for hydroforming.

Abstract: A valve train of an internal combustion engine includes at least one basic camshaft with a cam carrier provided thereupon in a rotationally fixed and axially displaceable manner. The cam carrier has at least one valve-actuating cam as well as a tubular basic element that receives the basic camshaft in at least some sections. At least one cam element of the cam carrier, in particular the valve-actuating cam, is arranged on the basic element. At least one torque-transmitting connecting element is located between the basic element and the cam element. An internal combustion engine having at least one valve train and a method for producing a valve train are also disclosed.

Abstract: A camshaft includes a carrier shaft to be mounted rotatably along a shaft axis and at least one cam pack or package axially displaceably disposed on the carrier shaft. The cam pack includes at least two cams and at least one adjusting member for axial adjustment of the cam pack. The cams and the at least one adjusting member are connected to one another in an axially adjacent configuration and can be mounted axially displaceably as a composite structure in a direct configuration on the carrier shaft by a rolling element guide with rolling elements. A cam pack or package and a method for producing a camshaft are also provided.

Abstract: A variable cam timing assembly (10) and method for an internal combustion engine of a motor vehicle includes a cam phaser (22) connected between an inner camshaft (12a) and an outer camshaft (12b) of a concentric camshaft (12). A torsional drive mechanism (14) connects between the cam phaser (22) and the inner camshaft (12a) for transmitting rotational torque. The torsional drive mechanism (14) permits adjustment for perpendicularity and axial misalignment of the inner and outer camshafts (12a, 12b), while maintaining a torsionally stiff coupling between the cam phaser (22) and one of the inner and outer camshafts (12a, 12b) of the concentric camshaft (12). The torsional drive mechanism (14) can be formed from one of a flexible shaft coupling (40), a transversely split driven gear (140), a transversely split sprocket ring gear (240), a transverse face spline gear (340), and a pin and slot combination drive (440).

Abstract: In a cam element for a valve drive train device of an internal combustion engine having at least one cam comprising at least two partial cams which are arranged next to one another and have a shared base circle phase in at least one angular camshaft range for valve lift switching by displacing their axial position with respect to a cam follower from one of the partial cams to another of the partial cams, the partial cams are angularly displaced in an axially overlapping arrangement. Also, between adjacent partial cams, a circular undercut is formed which has a center that is slightly offset from the rotational axis of the cam element so as to facilitate a switch over of valve actuation from one to another of the adjacent partial cams.

Abstract: A camshaft includes a carrier shaft which can be mounted rotatably along a shaft axis and at least one cam pack disposed axially displaceably on the carrier shaft. The cam pack includes at least two cams and at least one adjusting member for axial adjustment of the cam pack. The cams and the at least one adjusting member are connected to one another in an axially adjacent configuration and can be mounted axially displaceably as a composite structure in a direct configuration on the carrier shaft. A method for producing a camshaft and a cam pack are also provided.

Abstract: A camshaft includes a carrier shaft which can be mounted rotatably along a shaft axis and at least one cam pack or package axially displaceably disposed on the carrier shaft. The cam pack includes at least two cams and at least one adjusting member for axial adjustment of the cam pack. The cams and the at least one adjusting member are cast integrally with a carrier body in an axially adjacent configuration and are connected to one another by the carrier body. The cams and/or the adjusting member include an inner toothing which engages in an axially displaceable manner with an outer toothing of the carrier shaft. A cam pack and a method for producing a camshaft are also provided.

Abstract: A camshaft includes a carrier shaft to be mounted rotatably in a shaft axis and at least one cam pack axially displaceable on the carrier shaft. The cam pack includes at least two cams and at least one adjusting member for axial adjustment of the cam pack. The cams and adjusting member are interconnected in an axially adjacent configuration by an integrally molded body. The body is integrally molded on at least one cam and the adjusting member by an original molding process and a composite structure is formed by the integrally molded body. The composite structure can be mounted in a direct configuration on the carrier shaft to be axially displaceable thereon. The cams and the adjusting member include inner toothing engaging in an axially displaceable manner with outer toothing of the carrier shaft. A cam pack and a method for producing a camshaft are also provided.

Abstract: The instant invention relates to a cam shaft for internal combustion engines of motor vehicles, which is supported on a cylinder head housing via at least one roller bearing, wherein provision is made for at least one thrust bearing, which supports the cam shaft in axial direction and which is embodied as ball or also as roller bearing.

Abstract: Reciprocating-piston internal combustion engine having a crank mechanism, with at least one cylinder head, the intake and exhaust ducts of which are controlled by in each case at least one gas exchange valve which is configured as an intake or exhaust valve, which gas exchange valves can be actuated by cams of at least one camshaft and by transmission elements which are driven by said cams, wherein the cams are configured as sliding cams with at least two cams per sliding cam unit, which sliding cams are arranged via internal splining on an externally splined basic shaft such that they are fixed so as to rotate with it but can be displaced axially, at least one device which is fixed to the internal combustion engine for displacing the sliding cam unit into different axial positions via displacement grooves on the circumference of the sliding cam unit which interact with an actuator pin, and bearings for fixing the camshaft radially and axially on a component of the internal combustion engine, wherein the basi

Abstract: A cam for a camshaft of an internal combustion engine may include an axial extension with a holding contour for receiving a holding tool.