A grounding brush assembly includes a grounding brush with a plurality of conductive fibers and a mounting plate. The mounting plate includes a radial main body, a plurality of retaining tongues extending from the main body for axially and radially retaining the brush, and either a plurality of centering tabs or an annular centering flange extending from the main body and at least locally surrounding the grounding brush while remaining radially separated therefrom. The centering tabs or flange have/has an outer surface defining the outer diameter of the mounting plate. The mounting plate further includes at least one mounting tongue which protrudes outwardly with respect to the outer surface of the centering means and which is flexible in the radial direction.

A grounding brush assembly includes a grounding brush, which is provided with a plurality of conductive fibers and with a support inside of which the conductive fibers are mounted, and a brush mounting plate which is secured to the support of the brush. The mounting plate includes a radial portion and at least one centering portion extending at least axially from the radial portion, which is offset radially outwardly with respect to the support and has an outer surface defining the outside diameter of the mounting plate. The mounting plate further includes at least one spacer portion extending obliquely inwardly from the centering portion and on the side opposite the radial portion.

A grounding brush assembly includes a grounding brush including a support and a plurality of conductive fibers disposed within the support, and a brush mounting plate secured to the support of the brush. The mounting plate includes a radial portion and at least one centering portion extending at least axially from the radial portion, which is offset radially outwardly with respect to the support and has an outer surface defining the outside diameter of the mounting plate. The mounting plate includes at least one spacer tongue protruding from the radial portion on the side opposite the support.

A grounding brush assembly includes a grounding brush including a support and a plurality of conductive fibers disposed within the support, and a brush mounting plate which is secured to the support of the brush. The mounting plate includes a radial portion and at least one centering portion extending at least axially from the radial portion, which is offset radially outwardly with respect to the support and has an outer surface defining the outside diameter of the mounting plate. The mounting plate further includes at least one connecting portion connecting the radial portion to the centering portion and provided with at least one oblique part extending obliquely outwardly from the radial portion and on a side opposite to the support.

A grounding brush assembly includes a grounding brush provided with a plurality of conductive fibers and with a support inside of which the conductive fibers are mounted, and a brush mounting plate which is secured to the support of the brush. The assembly further includes a spacer washer supported by the mounting plate and arranged axially on the side opposite the brush in relation to the mounting plate.

A grounding rope assembly for electrically grounding a rotatable conductive shaft of a dynamo-electric machine. The assembly includes a grounding rope member including a plurality of conductive wires extending along the length of the grounding rope member and one or more discrete fixation points intermediate the first and second ends of the grounding rope member. Two or more of the plurality of conductive wires are affixed together at each of the discrete fixation points.

A grounding brush assembly is for an electric machine including a rotatable shaft having a bore, an outer housing, bearing(s) rotatably coupling the shaft with the housing and a fixed shaft extending through the bore of the rotatable shaft and electrically grounded. A conductive base member has a bore sized to receive a portion of the fixed shaft, a centerline and an outer circumferential surface. A conductive brush is coupled with the base member and includes conductive fibers extending radially outwardly from the outer surface of the base member and axially along and circumferentially around the centerline. Each conductive fiber has an inner radial end coupled with the base member and an outer radial end engageable with the inner circumferential surface of the rotatable shaft such that at least one conductive path extends from the rotatable shaft, through the brush and the base member, and to the fixed shaft.

A grounding brush assembly is for an electric machine including a rotatable shaft having a bore, an outer housing, bearing(s) rotatably coupling the shaft with the housing and a fixed shaft extending through the bore of the rotatable shaft and electrically grounded. A conductive base member has a bore sized to receive a portion of the fixed shaft, a centerline and an outer circumferential surface. A conductive brush is coupled with the base member and includes conductive fibers extending radially outwardly from the outer surface of the base member and axially along and circumferentially around the centerline. Each conductive fiber has an inner radial end coupled with the base member and an outer radial end engageable with the inner circumferential surface of the rotatable shaft such that at least one conductive path extends from the rotatable shaft, through the brush and the base member, and to the fixed shaft.

A grounding brush assembly for an electric machine which includes a rotatable, an outer housing, one or more bearings coupling the shaft with the housing, and a fixed shaft extending through the rotatable shaft and electrically grounded. The grounding brush assembly includes an inner conductive base member having a bore sized to receive a portion of the fixed shaft and a radial surface. An outer conductor is engageable with the inner circumferential surface of the rotatable shaft and has a radial contact surface. A conductive brush is coupled with the base member and includes a plurality of conductive fibers extending axially from the radial surface of the base member and circumferentially about the centerline, each conductive fiber having an first axial end coupled with the base member and an opposing second axial end engaged with the radial surface of the outer conductor to provide a conductive path or paths.

A grounding brush assembly for an electric machine which includes a rotatable, an outer housing, one or more bearings coupling the shaft with the housing, and a fixed shaft extending through the rotatable shaft and electrically grounded. The grounding brush assembly includes an inner conductive base member having a bore sized to receive a portion of the fixed shaft and a radial surface. An outer conductor is engageable with the inner circumferential surface of the rotatable shaft and has a radial contact surface. A conductive brush is coupled with the base member and includes a plurality of conductive fibers extending axially from the radial surface of the base member and circumferentially about the centerline, each conductive fiber having an first axial end coupled with the base member and an opposing second axial end engaged with the radial surface of the outer conductor to provide a conductive path or paths.