Abstract: Various embodiments of the teachings herein include an electric rotating machine or liquid pump. An example includes: a first liquid-free area; a second liquid-containing area; a can separating the first area from the second area, the can defining a stator-side and a rotor-side; and a sealing element at an axial end of the can. The sealing element is arranged symmetrically with respect to force effect on the can so that forces acting at the axial end of the can due to the seal are equalized.

Abstract: Various embodiments of the teachings herein include an electric motor. The electric motor may include: a rotor; a stator; an air-gap sleeve; and a cooling liquid on an inner side of the stator. The air-gap sleeve seals a rotor inner region against the cooling liquid. The air-gap sleeve produces an overpressure of greater than 1 bar in a region of the rotor defined by the air-gap sleeve.

Abstract: Various embodiments of the teachings herein include a can for an electric rotating machine. An example can includes: a bearing seat; and an asymmetric element on the can and/or on the bearing seat. The asymmetric element counteracts an expected deformation in loaded regions of the can, the expected deformation identified by measurement data and/or deformation simulation calculated in advance.

Abstract: Various embodiments of the teachings herein include a canned electrical rotating machine or liquid pump. The machine or pump may include a can made of a first material. The first material comprises, at least in a proportion of more than 50% by weight, a composite material with high-modulus or ultrahigh-modulus (HM/UHM) carbon fiber reinforcement.

Abstract: Various embodiments of the teachings herein include an end plate comprising: a device for receiving a bearing internally with an inner fastening circle; and fasteners for fastening the end plate to the housing of the electric machine externally with an outer fastening circle. The end plate has a geometry suitable for counteracting the deformation of the first natural frequency overcoming a flat and/or planar shape, or side, respectively, of the end plate by bending the end plate, with the same or a reduced mass and/or wall thickness of the end plate.