Abstract: The invention relates to a system for detecting the rotational motion of a shaft in a machine housing, comprising a measuring transmitter, which is connected to the shaft, at least one measuring sensor, which is provided on the machine housing, and a measuring transducer connected to a measuring sensor. The invention is characterized in that the measuring sensor(s) (8 and 15 to 20) is/are supplied with current by a separate energy accumulator (11).

Abstract: A sensor device for a shaft of a machine having a machine housing, the shaft having a shaft circumference and the machine housing having a sealed receiving bore. The sensor device includes a sensor for measuring motion parameters of the shaft and a stationary annular sensor housing that supports the sensor and encircles the shaft about the shaft circumference in a centered manner and at a distance. The sensor housing is retained in the receiving bore by a press fit or screw connection.

Abstract: The invention relates to a system for detecting the rotational motion of a shaft in a machine housing, comprising a measuring transmitter, which is connected to the shaft, at least one measuring sensor, which is provided on the machine housing, and a measuring transducer connected to a measuring sensor. The invention is characterized in that the measuring sensor(s) (8 and 15 to 20) is/are supplied with current by a separate energy accumulator (11).

Abstract: A sensor device for a shaft of a machine having a machine housing, the shaft having a shaft circumference and the machine housing having a sealed receiving bore. The sensor device includes a sensor for measuring motion parameters of the shaft and a stationary annular sensor housing that supports the sensor and encircles the shaft about the shaft circumference in a centered manner and at a distance. The sensor housing is retained in the receiving bore by a press fit or screw connection.

Abstract: A sealing system comprising a seal with a sealing lip and a sensor device provided with a measuring probe that extends into a space to be sealed off. The measuring probe during the intended use is exposed to the medium to be sealed.

Abstract: A sealing ring comprising a bearing ring with a radial flange and a sealing sleeve, which at its free end is connected to a thickened, surrounding bulge.

Abstract: A sealing ring comprising a bearing ring with a radial flange and a sealing sleeve, which at its free end is connected to a thickened, surrounding bulge.

Abstract: A sealing ring comprising a sealing sleeve that is made of a polymeric material and is essentially L-shaped. A fastening region extends essentially in a radial direction and a sealing region extends essentially in an axial direction. The sealing region surrounds, in sealing manner, a surface of a machine element to be sealed by exerting radial tension. The sealing region has, on the side facing the surface, at least one back-feeding device for conveying a medium to be sealed in the direction of the space to be sealed off. The back-feeding device has a profile with a volumetric delivery that decreases from the space to be sealed off in the direction of the surroundings.

Abstract: A sensor device for a shaft of a machine having a machine housing, the shaft having a shaft circumference and the machine housing having a sealed receiving bore. The sensor device includes a sensor for measuring motion parameters of the shaft and a stationary annular sensor housing that supports the sensor and encircles the shaft about the shaft circumference in a centered manner and at a distance. The sensor housing is retained in the receiving bore by a press fit or screw connection.

Abstract: A lip seal for sealing the gap between a housing and a shaft, a seal having a supporting body and static and dynamic sealing elements attached to the supporting body, the sealing elements being made of different materials and the supporting body having an annular part oriented radially to the shaft and a cylindrical part running axially to the shaft. The dynamic sealing element (7) is fastened to the radial annular part (31) of the supporting body and encloses the annular part (31) on both sides at the fastening point (32). The static sealing element (6) is positioned on the axial cylindrical part (33) of the supporting body (5) at a radial distance (8) from the dynamic sealing element (7).

Abstract: A sealing ring for sealing a shaft relative to an interior space. The sealing ring includes a supporting ring and a sealing disc attached to the supporting ring. The sealing disc includes a projection conically deformed in an axial direction of the shaft and has a first section in contact with the shaft. The first section includes a helical groove configured to allow return of a medium toward the interior space and a web separating adjacent turns of the helical groove. The groove has a trapezoidal cross section and/or a cross section larger than a cross section of the web.

Abstract: The invention relates to a rotating element of an electrical machine, rotating electrical contact parts and electrical machines containing these devices.

Abstract: The process comprising the charging into a mould (3) of at least one electrically conductive powder (4), the compression by means of a piston (5) of the contents of the mould to form a crude brush (7), the heat treatment of said crude brush (7) as well as the fixing of the ends of the electrical conductors (2), characterised in that the charging involves at least the simultaneous introduction of at least two conductive powders (4B, 4A and/or 4C . . . ) for obtaining a brush formed by integral blocks (1B, 1A and/or 1C . . . ), the junction (1AB and/or 1BC . . . ) between said blocks being orientated at least in part in the compression direction (13).

Abstract: A process for producing a brush for an electric motor having predetermined final dimensions and including a wearing block and a connecting braid. The brush is produced by preparing at least one mixture including a conductive graphite powder in the form of solid particles of a mean thickness less than 25 .mu.m and a mean shape factor greater than 5, encased with a distillation binder. The mixture is molded together with the connecting braid in a mold to form a crude brush of the final dimensions and the crude brush is baked.