A power transmitting component with a housing, a pinion rotatably disposed in the housing, a flange and a retainer. The pinion has a stem that defines male threads and a plurality of first teeth that intersect the male threads. The flange has an internal aperture that defines female threads, a plurality of second teeth. The female threads are threadably engaged with the male threads. The retainer is insert molded between the stem and the flange and includes a body, a plurality of third teeth, a plurality of fourth teeth and a retainer member. The third teeth extend from the body and engage the first teeth. The fourth teeth extend from the body and engage the second teeth. The retainer member is engaged to one of the flange and the stem. A method for coupling a flange to a stem is also provided.

A tolerance ring (200) including a tolerance ring sidewall (404) including a plurality of waves (or bridges) (452) extending at least one of radially inward or outward and having first (416) and second end portions (420) terminating at first (417) and second ends (421), respectively, where the tolerance ring has a first radius of curvature R.sub.i, measured at a point bisecting a circumferential length, L.sub.C, of the tolerance ring sidewall, and a second radius of curvature, R.sub.2, measured along one of the first and second end portions of the tolerance ring sidewall, and wherein at least one of: 1) R.sub.i is greater than R.sub.2, or 2) wherein R.sub.i is negative and R.sub.2 is positive.

A keyless timing gear assembly for securing a bull gear to a crankshaft of a power end of a reciprocating pump assembly, the keyless timing gear assembly including at least one actuator, an expansion member and at least one wedge member disposed between the at least one actuator and the expansion member, the wedge member having a sloped surface to slideably engage a corresponding sloped surface on the expansion member such that, in response to actuation of the at least one actuator, the at least one wedge member exerts a force on the expansion member for securing a bull gear to a crankshaft.

A kit for use with a drivetrain of a rotatable assembly includes a tapered bushing, a tapered adapter, and a bushing lock. The tapered bushing includes a flange, a sleeve portion, a central opening, a keyway located along the central opening, at least one fastener hole, and a tapered mating surface facing outward. The tapered adapter includes a hub body with an end face portion, an interior cavity, a threaded shaft, at least one fastener hole extending substantially axially through the hub body, and a tapered mating surface facing inward. The fastener hole(s) of the tapered adapter and tapered bushing are configured to align. The bushing lock includes a bushing lock central opening extending axially, a keyway located along the bushing lock central opening, and a fastener hole extending substantially radially.

A connection adapter for the detachable connection of an impeller with a shaft made of ceramic or tungsten carbide, to a rotor assembly for a turbo compressor. The connection adapter has an impeller section for fixing the impeller to the connection adapter and a shaft section for fixing the connection adapter to the shaft, and the impeller section has a first axial alignment means for axial alignment and a first radial alignment means for radial alignment of the impeller to the connection adapter. The shaft section has a second axial alignment means for axial alignment and a second radial alignment means for radial alignment of the shaft to the connection adapter, by way of which the impeller and the shaft are in a predetermined axial and radial alignment to one another on the connection adapter.