Abstract: A bearing unit having a roller bearing that includes an outer ring and an inner ring that is rotatable with respect to the same about an axis, The inner ring is fastened to a first component, and the outer ring is fastened to an adapter ring that is nonrotatably and axially movably supported on a second component. A method for manufacturing a structural unit and an electric motor are also provided.

Abstract: A coolable machine housing of an electric machine has a housing shell formed as an extruded section with integrated cooling ducts. The housing shell can be covered at the end faces by bearing end plates. The axially extending cooling ducts communicate with one another through connecting ducts. The cooling ducts in the extruded housing shell extend in pairs as cooling duct pairs between the shell end faces. The connecting ducts are boreholes that penetrate the outer wall by way of borehole openings that are closed by way of closing elements.

Abstract: A coolable machine housing of an electric machine has a housing shell formed as an extruded section with integrated cooling ducts. The housing shell can be covered at the end faces by bearing end plates. The axially extending cooling ducts communicate with one another through connecting ducts. The cooling ducts in the extruded housing shell extend in pairs as cooling duct pairs between the shell end faces. The connecting ducts are boreholes that penetrate the outer wall by way of borehole openings that are closed by way of closing elements.

Abstract: An electrical machine has a machine housing, which encloses a machine interior, and a flange bearing shield formed with a shaft feedthrough for a machine shaft. A leakage space that communicates with at least one drain opening is provided in the region of the shaft feedthrough.

Abstract: An electrical machine includes a coolable stator having an annular laminated stator core formed of a number of stator laminations having stator teeth which point radially inwards and form stator slots therebetween for accommodating a field winding wound onto the stator teeth. The laminated stator core has peripheral passage openings aligned with one another and forming cooling ducts.

Abstract: An electric machine, in particular an electric motor, has a one-piece can disposed between a stator and a rotor. The can has a tubular casing, which is loaded with external pressure by a coolant in a machine housing and which is made of fiber composite material. The casing thickness of the can lies between 2.5 mm and 0.5 mm. The can is axially fitted onto a sleeve and the sleeve is mounted to a collar of an end plate of the machine housing. The sleeve has a first axial section projecting into the can and a second axial section aligned with the can.