Abstract: A seal assembly component includes an annular body having a centerline, first and second axial ends spaced along the centerline, an inner circumferential surface, and an opposing outer circumferential surface. The inner surface defines a bore for receiving a shaft and is sized such that the body inner surface frictionally engages the shaft outer surface to couple the component with the shaft. At least three cavities extend axially from the body first axial end and are spaced circumferentially about the centerline. Each cavity is located adjacent to the bore so as to define a separate centering body portion between a radially innermost surface section of the cavity and an axially-extending centering surface section of the body inner circumferential surface located inwardly of the cavity. Any radial growth of each centering body portion is lesser than concurrent radial growth of remaining portions of the body during rotation of the shaft.

Abstract: A seal assembly component includes an annular body having a centerline, first and second axial ends spaced along the centerline, an inner circumferential surface, and an opposing outer circumferential surface. The inner surface defines a bore for receiving a shaft and is sized such that the body inner surface frictionally engages the shaft outer surface to couple the component with the shaft. At least three cavities extend axially from the body first axial end and are spaced circumferentially about the centerline. Each cavity is located adjacent to the bore so as to define a separate centering body portion between a radially innermost surface section of the cavity and an axially-extending centering surface section of the body inner circumferential surface located inwardly of the cavity. Any radial growth of each centering body portion is lesser than concurrent radial growth of remaining portions of the body during rotation of the shaft.

Abstract: A telemetry unit for high speed shafts includes a metallic annular carrier having an inner circumferential surface defining a bore, for receiving a shaft or sleeve to rotatably couple the telemetry unit with the shaft, an outer circumferential surface, opposing axial ends, and interior cavities. An annular insulator formed of an electrically insulative material has an inner circumferential surface disposed about the carrier outer surface, an outer circumferential surface, and opposing axial ends. A generally circular antenna is disposed circumferentially about the insulator outer surface and an annular retainer is disposed about the insulator outer surface such that the antenna is generally sandwiched between the retainer and the insulator to generally fix the antenna relative to the carrier. The carrier engages a portion of the insulator outer surface to prevent radially-outward displacement of the insulator when the telemetry unit rotates about the axis.

Abstract: A telemetry unit for high speed shafts includes a metallic annular carrier having an inner circumferential surface defining a bore, for receiving a shaft or sleeve to rotatably couple the telemetry unit with the shaft, an outer circumferential surface, opposing axial ends, and interior cavities. An annular insulator formed of an electrically insulative material has an inner circumferential surface disposed about the carrier outer surface, an outer circumferential surface, and opposing axial ends. A generally circular antenna is disposed circumferentially about the insulator outer surface and an annular retainer is disposed about the insulator outer surface such that the antenna is generally sandwiched between the retainer and the insulator to generally fix the antenna relative to the carrier. The carrier engages a portion of the insulator outer surface to prevent radially-outward displacement of the insulator when the telemetry unit rotates about the axis.