To realize a method for manufacturing a hub unit bearing capable of increasing the processing efficiency of a staking portion. An axial inner end portion of a hub ring 22 is processed into a staking portion 26 by rotating a die 31 around a reference axis C in a state in which the die 31 having a rotation axis α inclined with respect to the reference axis C is pressed against the axial inner end portion of the hub ring 22 under a condition that the hub ring 22 is disposed so that a center axis of the hub ring 22 is coaxial or parallel to the reference axis C and the hub ring 22 is supported to be radially movable.

A method and tool for obtaining face teeth having a plurality of radial teeth on an annular collar of an inner ring of a wheel hub; in which annular roughed-out face teeth are first formed on the collar coaxial with an axis of symmetry (A) of the collar and having a plurality of radial first teeth arranged in a crown and alternating at constant pitch with a plurality of radial first concavities; then a shaping tool comprising a pressing head provided with annular calibration face teeth is axially pressed onto the collar to engage with the annular roughed-out face teeth, second radial concavities of the annular calibration teeth each being delimited by a bottom wall having a rounded circumferential profile exactly reproducing in negative the rounded circumferential profile of the tips or ridges of the radial teeth of the required face teeth.

Equipment and method in which a creator tool is pressed against an annular upset collar of an inner ring of a wheel hub and is provided towards the collar with a toothing complementary to the toothing to be obtained, formed by a plurality of radial teeth separated by respective radial spaces, all arranged radially in a circular crown, symmetrically with respect to a first axis (B) defining the axis of symmetry of the tool; wherein the creator tool is provided with an annular radial containment element configured to delimit a continuous wall which closes off respective radially outer ends of the radial spaces.

An apparatus including a plurality of first and second pressing elements arranged in crown symmetrically around an axis of symmetry (B) so that a first end of a first pressing element cooperates in contact with a second end of a second pressing element; wherein the first and second pressing elements are supported slidingly and passing through by, respectively, a first and a second plate coupled and bound to each other, in respective second and first slits angularly spaced apart; the first pressing elements being provided with hammerheads circumferentially wider than the second slits and which cooperate circumferentially without play in contact with each other, and the second pressing elements being provided with engraving heads circumferentially wider than the first slits, which cooperate circumferentially without play in contact with each other.

A method of manufacturing an engine valve intermediate product with a boss portion formed in integral fashion at an outer circumferential surface at an intermediate location on a stem forming portion. The manufacturing method may comprise a stem retaining operation in which an intermediate location of the stem forming portion is retained by a plurality of intermediate jigs removably installable radially with respect to a center of the stem forming portion, and a base end portion is retained by a base end jig. The manufacturing method may further comprise a stem enlarging operation in which compressive forces are applied from both ends of the intermediate product and the boss portion is formed as the intermediate product is made to rotate and alternating loads that cause tensile forces and compressive forces to act in repeated and alternating fashion at the outer circumferential surface of the stem forming portion are applied.

Provided is construction which is able to downsize an orbital forging device comprising a spherical seat with shaft that swings and rotates with a molding die. The end section on the other side in the axial direction of the swinging shaft 13 is supported with respect to the driving mechanism 17 in a state where the movement toward one side in the axial direction (lower side) is prevented, and a member for preventing the swinging shaft 13 from moving toward the one side in the axial direction with respect to the frame 10 is not assembled in a section which is located between the convex spherical seat 14 and the driving mechanism 17 in the axial direction of the swinging shaft 13.

A hub main body (13z) is supported by a support portion (18). At least one block (22) is engaged with a stationary flange (6) of an outer ring (2). As a support plate (21) rotates, the outer ring (2) rotates. A caulking portion (16) is formed by pressing a pressing die (20) on a cylindrical portion (31).

Provided is construction which is able to downsize an orbital forging device comprising a spherical seat with shaft that swings and rotates with a molding die. The end section on the other side in the axial direction of the swinging shaft 13 is supported with respect to the driving mechanism 17 in a state where the movement toward one side in the axial direction (lower side) is prevented, and a member for preventing the swinging shaft 13 from moving toward the one side in the axial direction with respect to the frame 10 is not assembled in a section which is located between the convex spherical seat 14 and the driving mechanism 17 in the axial direction of the swinging shaft 13.

The inspection device of the swing forging apparatus includes an inspection tool and a laser irradiation surface. When inspecting the swing forging apparatus, the inspection tool is supported to the head to which the processing roll is not supported, with a substantially same condition as the processing roll, and the inspection tool has a function of emitting a laser beam onto a central axis of the inspection tool. When inspecting the swing forging apparatus, the laser irradiation surface is arranged so that a relative position of the laser irradiation surface to the head in an axial direction of the head can be changed and the laser beam can be irradiated to the laser irradiation surface.

A slinger, or slinger ring, for a melt spinning apparatus has a cylindrical, mechanically shaped main element that is composed of a refractory metal or a refractory metal-based alloy and has a circumferential surface running in a tangential direction. The circumferential surface is delimited in the axial direction by two end faces. A degree of deformation in the radial direction is greater than the degree of deformation in the axial direction.