Methods of producing an assembly, e.g., a bearing assembly, for a vehicle, with reduced thermal expansion in a linear direction as well as methods for minimizing linear thermal expansion in an assembly, are provided. The assembly has at least two components with substantially different linear coefficients of thermal expansion (CLTEs). The assembly has a lightweight planar metal component (e.g., a housing) with a first CLTE, a second component (e.g., a bearing component) having a second CLTE, and a polymeric composite with a third CLTE. The first CLTE is greater than the second CLTE. The third CLTE is less than or equal to the second CLTE, so that the polymeric composite structure attached to the first planar metal component reduces thermal expansion of the first planar metal component in at least one linear direction and minimizes separation of the second surface of the first planar metal component from the second component.

A bearing assembly for an electrical generator includes a frame, a bearing liner and a ring. The frame is configured to connect with a housing of an electrical generator. The frame includes a frame opening and is made from a first material. The bearing liner connects with the frame. The bearing liner is made from a second material, which is dissimilar from the first material. At least a portion of the bearing liner passes through the frame opening. The ring surrounds the bearing liner. The ring contacts the frame and the bearing liner and maintains a clearance between the portion of the bearing liner passing through the frame opening and the frame.

A steering gear for a steer-by-wire steering system of a motor vehicle may include a coupling rod mounted in a steering gear housing. A threaded spindle may be formed on the coupling rod and surrounded by a spindle nut as part of a spiral gear. The coupling rod may be displaceable along a longitudinal axis by way of the spiral gear. The coupling rod can be mounted in the steering gear housing by way of a plain bearing so as to be displaceable along the longitudinal axis. The plain bearing is configured to compensate for thermal expansions between the steering gear housing and the spindle nut.

A system, in certain embodiments, includes a composite crosshead. The composite crosshead comprises a crosshead body made of a first composite material, wherein the first composite material comprises a first reinforcing material distributed in a first matrix material, wherein the composite crosshead is configured to move in a reciprocating motion in a machine.

A bearing system that accepts a journal of a roll includes a housing defining a cavity and having a forward wall that defines an opening into the cavity, the opening configured to accept the journal through the opening and into the cavity. A sleeve is positioned within the cavity of the housing, the sleeve configured to surround the end of the journal. A first seal is positioned within the cavity of the housing adjacent to the forward wall of the housing, the first seal having an engagement surface. A second seal is positioned within the cavity of the housing and operably connected to the sleeve, the second seal having an engagement surface in contact with the engagement surface of the first seal.

A bearing assembly includes a bearing, in particular a non-locating bearing, for supporting a shaft within a housing. The bearing provides an inner ring and an outer ring. A radially outer surface of the outer ring and/or a radially outer surface of the shaft and/or a radially inner surface of the inner ring and/or a radially inner surface of the housing has a protection layer. The protection layer is a thermally expanding or shrinking layer being thermally heated and expanded to or shrunk on the respective radially inner surface and/or radially outer surface. Further, a method for manufacturing a bearing ring for such a bearing assembly is disclosed.

The invention relates to an exhaust-gas-driven turbocharger having a hydrodynamic plain bearing having a rotor and a stator, the rotor being rotatable with respect to the stator, the rotor bearing surface being located opposite a counter-surface of the stator in order to generate hydrodynamic pressure in the region of a converging gap. In such a hydrodynamic plain bearing, the application properties can be improved by the fact that the rotor bearing surface and/or the counter-surface constitutes in a section view, in the context of a section along and through the rotation axis, a continuous bearing contour that is constituted from convex or concave curvatures and/or from at least two contour segments that are embodied as straight lines and/or curvatures. The invention also relates to a hydrodynamic plain bearing or bearing arrangement having such a plain bearing.

A differential includes a unitized double row angular contact ball bearing supporting a pinion stub shaft. The bearing includes two inner rings which are slightly separated before assembly. As the stub shaft is inserted into the bearing, one of the inner rings is pushed against a land such as the back of the pinion gear. Pushing the inner rings together ensures a suitable pre-load. The inner rings have an interference fit with the stub shaft such that friction maintains the pre-load without a nut. The bearing and shaft are then inserted between halves of a two-piece case.

A bearing system that accepts a journal of a roll includes a housing defining a cavity and having a forward wall that defines an opening into the cavity, the opening configured to accept the journal through the opening and into the cavity. A sleeve is positioned within the cavity of the housing, the sleeve configured to surround the end of the journal. A first seal is positioned within the cavity of the housing adjacent to the forward wall of the housing, the first seal having an engagement surface. A second seal is positioned within the cavity of the housing and operably connected to the sleeve, the second seal having an engagement surface in contact with the engagement surface of the first seal.

A bearing assembly may be provided for mounting a rotor which can be rotated about a rotational axis. In particular, for a rotary fluid pump or rotary blood pump comprising: a main body, a bearing element which can be displaced relative to the main body in the direction of the rotational axis for receiving the rotor, and an adjusting device which is connected to the bearing element for displacing the bearing element in the direction of the rotational axis by a predefined distance, wherein the predefined distance is <=500 micrometres.