Abstract: A power tool, wherein a lubricant for gearbox lubrication can be accommodated in a gearbox housing interior of the gearbox housing, wherein the output shaft has a first end on which an insert tool unit can be mounted, and has a second end, wherein the output shaft is designed as a hollow spindle with a cavity. A hollow cylinder section is formed at its second end. An actuator is arranged in a rotationally resistant manner to the gearbox housing, which engages with the hollow cylinder section. Between the hollow cylinder section and the actuator, a gap extends along the axis of rotation which at its first end is connected to the cavity and at its second end to the gearbox housing interior. A shaft seal is disposed in the gap, which counteracts the leakage of lubricant from the gap towards the first end of the output shaft.

Abstract: A handheld electric power tool, in particular an angle grinder, having a housing that comprises a first housing part and a second housing part, having an electric motor that is accommodated in the housing and drives a rotor shaft that is connected in a force-transmitting manner to an output unit accommodated in a gear head. A housing ring is provided that connects the first housing part to the second housing part at the front.

Abstract: A bearing device for supporting an accumulator module on an interface of a power tool housing section of a handheld tool and a corresponding accumulator housing section of the accumulator module, including at least one bearing element, which is designed to captively support the accumulator module in a connection position, in which the accumulator module is electrically connected to the handheld tool, and to permit the transfer of the accumulator module from the connection position into a removal position, in which the accumulator module may be removed from the handheld tool. The at least one bearing element includes a polymer and is arranged between the power tool housing section and the accumulator housing section in the connection position for the purpose of supporting the power tool housing section and the accumulator housing section.

Abstract: A power tool, in particular an angle grinder, having a drive motor accommodated in a housing which drives a rotor shaft, a tool spindle comprising a tool holder which is preferentially connected to the rotor shaft in a power-transmitting manner by a gearing, as well as a control switch for activating the drive motor, wherein the control switch comprises a first switching element which is pivotably mounted on the housing about a pivot axis between a first switch position for switching on the drive motor and a second switch position for switching off the drive motor, and a second switching element which is rotatable about a rotational axis between a locked position which blocks the first switching element from moving into the first switch position and a release position which enables the first switching element to move into the first switch position.

Abstract: A torque-dependent releasable disconnect coupling for an electric hand-held power tool, in particular a screwdriver, for selectively transmitting a torque from a drive shaft to an output shaft that is coaxial with respect to the drive shaft. An axially nondisplaceable guide ring guides a switching element, in particular a ball, and a second guide ring. A cam ring and the second guide ring are axially pretensioned against one another and accommodate the switching element axially between them. The disconnect coupling may be brought from a first, non-torque-transmitting switching position into a second, torque-transmitting switching position. The switching element is deflected in the axial direction relative to the cam ring, against the action of the pretensioning, when a first release torque in the first switching position is exceeded, thus bringing he disconnect coupling into the second switching position.

Abstract: A protective element, in particular a cover, for the guard of a disk-shaped tool of an electric power tool, in particular an angle grinder. The protective element has a protective element body that is reversibly attached to the guard in an installed position by clamping the guard between attachment elements and a leaf spring of the protective element body. The invention also relates to a manufacturing method for the protective element and an electric power tool having this protective element.

Abstract: A magnetic base for an electric power tool, in particular for a magnetic core drilling machine. The magnetic base having a base body, in which at least one first solenoid coil forming an electromagnet is accommodated in a receiving space, whose magnetic force is switchable between a maximum resulting holding force and a minimum resulting holding force. A first side that is adapted to be coupled with the electric power tool. An oppositely situated second side, which is adapted to be placed on a workpiece to be processed. The receiving space is designed such that an insertion of the at least one solenoid coil into the receiving space is possible only from the first side.

Abstract: A cover element for covering a spring-loaded clamping device which can be connected to a printed circuit board. A connecting section connects the cover element with a connecting section of the spring-loaded clamping device and a cover portion covers a conductor mount of the spring-loaded clamping device. The cover portion has an opening channel for form-fitting and/or force-fit mounting of a connecting strand, through which a conductor of the connecting strand can be guided and inserted into the conductor mount of the spring-loaded clamping device. A clamping system and a method for manufacturing the cover element are also provided.

Abstract: An electric machine, in particular an electric motor, having an encapsulated magnetic air gap and the yoke ring of the stator being wound instead of the pole shoes. A method for manufacturing the electric machine is also provided.

Abstract: A toolholder for a tool having a flat surface that can be rotated about an axis of rotation, in particular, a Weldon toolholder for a milling tool or a core drill. A clamping jaw has a contact surface spaced from the flat surface side of the flat surface and touches the flat surface when the clamping jaw is pressed against the flat surface in a second arrangement of the clamping jaw or in the assembly position of the tool. A stationary machine tool comprising this toolholder and a tool and a method for manufacturing thereof are also provided.

Abstract: A stationary machine tool for machining, in particular core drilling, comprising a tool stand with a first tool stand housing interior. A chip guidance system comprises a magnet, wherein the magnet is arranged in the first tool stand housing interior such that chips produced by a machining process and entering the first tool stand interior are deflected by the chip guidance system.

Abstract: The invention relates to a machine tool with a tool receiving device that is movable around an output shaft. The tool receiving device is designed to hold a tool device on the machine tool such that the output shaft and a tool rotation axis substantially coincide. The tool receiving device has at least one torque transmission region and a holding device. To transmit a driving force to the tool device, the torque transmission region has at least two output area regions arranged at a distance from said output shaft, with each having a multiplicity of surface points. The tangent planes to said surface points are inclined in regard to an axial plane including said output shaft. The tangent planes are inclined in regard to a radial plane extending perpendicularly to the output shaft. The machine tool thus transmits the output torque to the tool device via the tool receiving device.

Abstract: An electric motor of an AC-operated, handheld power tool, with a stator that has multiple windings that are accommodated in a laminated stator core and are electrically insulated therefrom with basic insulation, in which stator a rotor is supported so as to be rotatable about an axis of rotation, wherein the rotor has a rotor shaft on which a laminated rotor core with a multiplicity of permanent magnets is held, which laminated rotor core is electrically insulated from the rotor shaft, characterized in that the stator is enclosed by a motor housing that is electrically insulated from the windings of the stator, and in that a supplementary electrical insulation is formed between the motor housing and the rotor shaft.

Abstract: A housing for an electric hand-held power tool, in particular for an angle grinder, having a housing opening for a mains cable end and having a maintenance opening which can be closed by a maintenance cover in order to permit manual access to the line contacts of the mains cable end which are arranged under the maintenance cover. An electric hand-held power tool formed with the housing is also provided.

Abstract: A motor control unit for a brushless electric motor of a power tool, in particular a hand-held power tool, having an electronic control device having a power limiting device designed to limit the power absorption of the electric motor in order to restrict the power absorption of the electric motor to a maximum permissible maximum power value and to adjust this maximum power value during the operation of the electric motor as a function of the at least one temperature value. A corresponding power tool and a method are also provided.

Abstract: A power tool, wherein a lubricant for gearbox lubrication can be accommodated in a gearbox housing interior of the gearbox housing, wherein the output shaft has a first end on which an insert tool unit can be mounted, and has a second end, wherein the output shaft is designed as a hollow spindle with a cavity. A hollow cylinder section is formed at its second end. An actuator is arranged in a rotationally resistant manner to the gearbox housing, which engages with the hollow cylinder section. Between the hollow cylinder section and the actuator, a gap extends along the axis of rotation which at its first end is connected to the cavity and at its second end to the gearbox housing interior. A shaft seal is disposed in the gap, which counteracts the leakage of lubricant from the gap towards the first end of the output shaft.

Abstract: A handheld electric power tool, in particular an angle grinder, having a housing in which an electric motor is accommodated that drives a rotor shaft that is connected in a force-transmitting manner to an output unit accommodated in a gear head. A housing ring is provided that makes available at least one guide section for the gear head and a guide for the electric motor. An air guide section, in which a fan is accommodated that is attached to the rotor shaft, is formed on the side of the housing ring facing away from the housing.

Abstract: A magnetic base for an electric power tool, in particular for a magnetic core drilling machine. The magnetic base having a base body that has a contact surface for contacting a workpiece to be machined, at least one first permanent magnet and at least one second permanent magnet arranged in the base body, the at least one and second permanent magnet having magnetic forces that interact to form a resulting holding force. The at least one first permanent magnet and the at least one second permanent magnet are supported in the base body and rotatable around its own rotation axis between a first position, in which the resulting holding force of the magnetic base is maximized, and a second position, in which the resulting holding force of the magnetic base is minimized.

Abstract: A bearing device for supporting an accumulator module on an interface of a power tool housing section of a handheld tool and a corresponding accumulator housing section of the accumulator module, including at least one bearing element, which is designed to captively support the accumulator module in a connection position, in which the accumulator module is electrically connected to the handheld tool, and to permit the transfer of the accumulator module from the connection position into a removal position, in which the accumulator module may be removed from the handheld tool. The at least one bearing element includes a polymer and is arranged between the power tool housing section and the accumulator housing section in the connection position for the purpose of supporting the power tool housing section and the accumulator housing section.

Abstract: A magnetic base for an electric machine tool, in particular for a magnetic core drilling machine. A body that is accommodated in a receiving space. At least one first magnet coil constituting an electromagnet, a coil winding of the at least one first magnet coil being wound on a bobbin and a magnetic force of which is switchable between a maximum resultant holding force and a minimum resultant holding force. The coil winding of the magnet coil has two end sections that are each connected to a connecting cable that serves to make electrical contact between the magnetic coil and the electric machine tool. The body has a first side adapted to be coupled to the electric machine tool and has an opposite second side adapted to be placed on a workpiece that is to be processed. End sections of the coil winding are connected to the connecting cables.