A method for producing an internally structured slide bearing bushing involves the following steps: a) providing a slide bearing bushing with at least one bearing region which is formed as a hollow cylinder with an internal surface and which has an external diameter and an internal diameter, b) providing an external tool with a through-opening, c) providing an internal tool which has an integral cylindrical operating region with an external surface with a structure, d) inserting the internal tool into the bearing region of the slide bearing bushing, e) introducing the slide bearing bushing and the internal tool into the conical widened portion of the through-opening of the external tool, f) pressing the slide bearing bushing into the through-opening of the external tool, g) removing the slide bearing bushing from the through-opening of the external tool, and h) radially widening the slide bearing bushing.

A metallic/composite joint may comprise a composite member having a flared end or an angled end, a liner perimetrically surrounding the composite member, and a metallic member perimetrically surrounding the liner. A first side of the liner contacts the composite member and a second side of the liner contacts the metallic member. The liner perimetrically surrounds at least a portion of the flared end. A through-thickness compressive stiffness of the liner may be less than a similar stiffness of the composite member.

A device EA that manufactures a projection-bearing body having a structure in which projections CV are formed on a bearing sheet BS comprises: a material transfer unit 10 that executes a material transfer step of transferring a base material BM containing a plastic material PM; a material support unit 20 that executes a material support step of supporting the base material BM transferred by the material transfer unit 10, by a support member 22 having a support surface 22A in which recesses 22B corresponding to the projections CV are formed; and a press unit 30 that executes a pressing step of pressing the base material BM in a direction toward the support surface 22A to fill the plastic material PM in the recesses 22B and forming the projections CV from the plastic material PM. In the base material BM, the plastic material PM is stacked on one surface of the bearing sheet BS. When transferring the base material BM, the material transfer unit 10 places the base material BM on the support member 22, with the plastic material PM in contact with the support surface 22A.

Disclosed is a composite beam structure having: an end piece, an end piece outer periphery surface, and an end piece mating end defining an end piece axial boundary, the end piece includes wedge-shaped inner locking features that are formed to project outwardly from the end piece outer periphery surface at the end piece mating end and are spaced apart from one another in the hoop direction; and a composite tube configured to surround at least a portion of the end piece mating end to form a beam joint, wedge-shaped imprints are formed through the composite tube, corresponding to the wedge-shaped inner locking features, the wedge-shaped imprints define respective composite tube wedge-shaped depression surfaces about a composite tube inner periphery and composite tube wedge-shaped boss surfaces about a composite tube outer periphery, and the wedge-shaped inner locking features of the end piece are covered by the composite tube wedge-shaped depression surfaces.

Methods and apparatus for manufacturing a circular laminated component are disclosed herein. In one embodiment, a method comprises stamping an inlet stock of material to form a line of arc segments, the line of arc segments having: a plurality of notches along a first edge; a first longitudinal end; and a second longitudinal end opposite the first longitudinal end; wrapping the line of arc segments to form a circular segment having the first edge along an inner-circumferential diameter of the circular segment; joining the first longitudinal end to the second longitudinal end to form a circular laminate layer; and stacking a plurality of circular laminate layers to form a laminate disc.

A method of imparting compressive residual stress to a first plurality of balls includes a) placing the balls between a first body having a first surface and a second body having a second surface, the first surface including a smooth contact portion, the smooth contact portion being substantially flat or convex and having a surface hardness greater than or equal to an initial surface hardness of the balls, b) imparting a compressive stress along a first diameter of the balls by pressing the first body toward the second body or the second body toward the first body or the first and second bodies toward one another with a force, and c) causing relative movement between the first surface and the second surface while maintaining the force at or above a minimum level to impart the compressive stress along other diameters of the balls different than the first diameter.

A forged crankshaft production method includes a first preforming step, a second preforming step, and a final preforming step. The first pair of dies includes web processing parts to come into contact with portions to be formed into arms and portions to be formed into weights integrated with the arms. Each of the web processing parts includes an arm processing part and a weight processing part. The arm processing part and the weight processing part form a recessed portion, and the width of the open side of the weight processing part becomes greater with increasing distance from the bottom of the recessed portion. Accordingly, in the blank, volume can be distributed between a portion to be formed into an arm and a portion to be formed into a weight integrated with the arm, and the material yield rate can be improved.

A thrust roller bearing includes rollers arranged in a radial manner, an annular cage that retains the rollers such that the rollers are rollable, an annular outer race located on one side of the cage in an axial direction of the cage and having a first raceway on which the rollers roll, and an annular inner race located on the other side of the cage in the axial direction and having a second raceway on which the rollers roll. At least one of the first raceway and the second raceway has a Vickers hardness that is greater than or equal to 800 and less than or equal to 950. The outer circumferential surface of each of the rollers has a Vickers hardness that is greater than or equal to 697 and less than 800.

A tilting pad journal bearing manufacturing method includes a first process and a second process. In the first process, a pivot fitting hole is formed on a convex curved outer circumferential surface of the tilting pad. The pivot fitting hole is recessed from the outer circumferential surface toward an inner circumferential surface and has an inner diameter smaller than an outer diameter of the distal end portion of the pivot. In the second process, a concave portion is formed on the concave curved inner circumferential surface of the tilting pad by attaching the distal end portion of the pivot to the pivot fitting hole by interference-fitting.

A rolling-element bearing cage or rolling-element bearing cage segment is formed from aluminum alloy AA6082 and/or AA7020 and may have a tensile strength of at least 350 MPa and/or a yield strength of at least 310 MPa and/or a hardness of at least 100 HBW. Also a method of forming a rolling-element bearing cage or rolling-element bearing cage segment from aluminum alloy AA6082 and/or AA 7020.