A pump assembly may include a rotor having a rotor shaft portion; a stator having a bore portion defining a bore for receiving the rotor shaft portion; and a circumferential protrusion extending radially into the bore between the bore portion and the rotor shaft portion, wherein at least one of the protrusion and a corresponding surface of the rotor shaft portion or the bore portion is configured to be abraded by the other upon experiencing contact therewith. In this way, the gap between the bore portion and the rotor shaft portion may be at least partially filled by the circumferential protrusion in order to provide a seal. The protrusion and one of the bore portion and the rotor shaft portion may be formed from different hardness materials.

A heterogeneous composite consisting of near-nano ceramic clusters dispersed within a ductile matrix. The composite is formed through the high temperature compaction of a starting powder consisting of a core of ceramic nanoparticles held together with metallic binder. This core is clad with a ductile metal such that when the final powder is consolidated, the ductile metal forms a tough, near-zero contiguity matrix. The material is consolidated using any means that will maintain its heterogeneous structure.

A heterogeneous composite consisting of near-nano ceramic clusters dispersed within a ductile matrix. The composite is formed through the high temperature compaction of a starting powder consisting of a core of ceramic nanoparticles held together with metallic binder. This core is clad with a ductile metal such that when the final powder is consolidated, the ductile metal forms a tough, near-zero contiguity matrix. The material is consolidated using any means that will maintain its heterogeneous structure.

A rotor is for angularly displacing a work piece about a central axis and includes an annular, central axial portion centered about the axis and having opposing, first and second axial ends and inner and outer circumferential surfaces. An outer radial portion extends radially-outwardly from the first axial end of the central portion such that an outer generally annular cavity is at least partially defined between the central portion and the outer radial portion. Further, an inner radial portion extends generally radially-inwardly from the second axial end of the central portion such that an inner generally annular cavity is at least partially defined between the central portion and the inner radial portion. One or more motor stators are disposed at least partially within the outer or inner cavity and are each configured to angularly displace the rotor about the central axis, and preferably contactlessly drives the rotor.

A vehicle wheel hub assembly includes an outer member configured to be mounted to a non-rotatable portion of the vehicle and an inner member rotatably supported in the outer member by a bearing. An annular target body is coupled to the inner member. A first magnetic target track is disposed on the annular target body, and a first sensor is located adjacent to the first magnetic target track and configured to sense angular displacement of the first magnetic target track and to produce a first output signal. A second magnetic target track is disposed on the annular target body, and the second magnetic target track is spaced from the first magnetic target track. A second sensor is located adjacent to the second magnetic target track for sensing angular displacement of the second target track and is configured to produce a second output signal.

A vehicle wheel hub assembly includes an outer member configured to be mounted to a non-rotatable portion of the vehicle and an inner member rotatably supported in the outer member by a bearing. An annular target body is coupled to the inner member. A first magnetic target track is disposed on the annular target body, and a first sensor is located adjacent to the first magnetic target track and configured to sense angular displacement of the first magnetic target track and to produce a first output signal. A second magnetic target track is disposed on the annular target body, and the second magnetic target track is spaced from the first magnetic target track. A second sensor is located adjacent to the second magnetic target track for sensing angular displacement of the second target track and is configured to produce a second output signal.

A self-lubricating composite material is disclosed. The self-lubricating composite material can include discontinuous polymer fiber segments dispersed within a woven matrix of semi-continuous thermoplastic fiber. The woven matrix can be embedded within a thermosetting resin. Also disclosed are methods of manufacturing the self-lubricating composite material.

A self-lubricating composite material is disclosed. The self-lubricating composite material can include discontinuous polymer fiber segments dispersed within a woven matrix of semi-continuous thermoplastic fiber. The woven matrix can be embedded within a thermosetting resin. Also disclosed are methods of manufacturing the self-lubricating composite material.

A sliding member includes a back-metal layer including an Fe alloy and a sliding layer including a copper alloy including 0.5 to 12 mass % of Sn and the balance of Cu and inevitable impurities. The sliding layer has a cross-sectional structure perpendicular to a sliding surface of the sliding layer. The cross-sectional structure includes first copper alloy grains that are in contact with a bonding surface of the back-metal layer and second copper alloy grains that are not in contact with the bonding surface. The first copper alloy grains has an average grain size D1 and the second copper alloy grains has an average grain size D2. D1 and D2 satisfy the following relations: D1 is 30 to 80 m; and D1/D2=0.1 to 0.3.

A method for assembling an annular seal element, formed by a sealing cord which runs around an opening on a seal receptacle which runs around on the outside of a component. The method includes introducing two assembly fingers into the opening of the annular seal element, stretching the annular seal element by moving the assembly fingers apart from one another, with the formation of a cord portion of the sealing cord, the cord portion being freely tensioned between the assembly fingers, placing the freely tensioned cord portion onto the seal receptacle in a contact region, applying the annular seal element, by way of its opening, onto the seal receptacle, and removing the assembly fingers from the annular seal element. The assembly fingers are moved so as to follow the profile of the seal receptacle, to travel around the seal receptacle in opposite directions.