Nsk Corporation

Nobuyuki Hagiwara

Kazuto Kobayashi

Hiroshi Koyama

Tokumasa Kikuchi

Tetsurou Maruno

Isao Shintou

Toshio Nakamura

Yuuki Mizushima

Shoji Horike

Tsuyoshi Kamoda

Masahiro Yasumura

Sonji Ryu

Xuexiao Zhao

Kiyoshi Sadakata

Ikunori Sakatani

Hiroaki Yamazaki

Kazuo Chikaraishi

Osamu Tatewaki

Kaname Yasuda

Minao Umeda

Tadashi Hibino

Hiroki Mizuno

Masaharu Igarashi

Masahiro Inoue

Kazuho Chikaraishi

Yukio Higuchi

Tatsuya Enomoto

Ryusuke Nagae

Reiji Hirasaki

Satoshi Sugai

Atsuhiro Ishii

Axial relative movement of an auxiliary member () and a hub body () is performed, the hub body () and an inner race () are combined with each other in an axial direction, and a part of the hub body () deformed by a blade () of the auxiliary member () is disposed inside an engagement concave portion () of the inner race ().

Staking assembly, staking assembly manufacturing method, hub unit bearing, hub unit bearing manufacturing method, automobile, and automobile manufacturing method

A measuring pressing die () is supported by a spherical concave seat (). A measuring shaft member () is disposed coaxially with a reference axis (α) and is linearly guided in a direction of the reference axis (α) between the measuring pressing die () and a support table (). After that, the load application apparatus measures an actual load in the direction of the reference axis (α) applied to the measuring shaft member () using a load cell () in a state in which the measuring pressing die () is pressed against the measuring shaft member () while the measuring pressing die () is rotated about the reference axis (α).

Dynamic load measurement method for rotary forging device, dynamic load measuring device, method for calibrating rotary forging device, method for manufacturing hub unit bearing, and method for manufacturing vehicle

An application position of a processing force directed radially outward is continuously changed in the circumferential direction of a cylindrical portion () while applying the processing force to a part of the cylindrical portion () of a hub main body () in the circumferential direction. An application position of a processing force directed radially inward is continuously changed in the circumferential direction of a staking portion intermediary body () while applying the processing force to a part of the staking portion intermediary body () in the circumferential direction.

Method of manufacturing staking assembly, method of manufacturing hub unit bearing, staking device, staking assembly, and method of manufacturing vehicle

A plurality of press rolls () each having an inclined roll central axis () are used. Each of press rolls () and a bub ring () are relatively rotated while pressing a roll processing surface portion () of each of the press rolls () against a plurality of locations of a tubular portion () of the hub ring () in a circumferential direction to plastically deform the tubular portion ().

Staking apparatus and staking method for bearing unit, manufacturing method and manufacturing apparatus of hub unit bearing, and manufacturing method of vehicle

A method of manufacturing a hub unit bearing () includes the step of applying an axial load to a shaft end of a hub body () so that a staking portion () for inner races () is formed in the hub body (). The load is adjusted based on at least one of first information acquired before applying the load and second information acquired while applying the load.

Staking assembly manufacturing method, hub unit bearing manufacturing method, and vehicle manufacturing method

A moving element () holding a workpiece (a hub unit bearing ()) is horizontally loaded into an internal space () of an exterior () from an external space of the outer package (), while being guided by a guide member () through an opening portion (a front surface side opening portion ()) provided in the exterior () constituting a rotary forging apparatus (). After completion of the loading process, the workpiece is subjected to rotary forging, using a forming die ().

Conveying system, rotary forging method, rotary forging apparatus, method for manufacturing bearing, method for manufacturing vehicle, and method for manufacturing mechanical device

A method of performing pressing on a workpiece using a press machine. The pressing method includes: performing pressing on the workpiece between a lower die and an upper die by causing the upper die to approach the lower die by using the hydraulic cylinder in a state in which the workpiece is disposed between the lower die and the upper die, and performing the pressing on the workpiece between the lower die and the upper die, in a state in which a shape of each of the frame, the lower die and the upper die has a rotationally symmetric shape about the reference axis and in which the workpiece center axis coincides with the reference axis.

Pressing method and method of manufacturing mechanical apparatus

A producing method of a bearing unit includes: a step of measuring torque of a first bearing unit under each of a plurality of load conditions during production of the first bearing unit; a step of determining a target value of each of a plurality of production parameters based on of a load-torque relationship obtained from measurement results of the torque; and a step of producing a second bearing unit on the basis of the target value of each of the plurality of production parameters.

Producing method of bearing unit, producing method of machine, and producing method of vehicle

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 shaftis supported with respect to the driving mechanismin a state where the movement toward one side in the axial direction (lower side) is prevented, and a member for preventing the swinging shaftfrom moving toward the one side in the axial direction with respect to the frameis not assembled in a section which is located between the convex spherical seatand the driving mechanismin the axial direction of the swinging shaft

Orbital forging device, method for orbital forging, method for manufacturing hub unit bearing using method for orbital forging, and method for manufacturing vehicle

Provided are an oil receiver () having an annular recess portion () which faces an entire circumference of an outer circumferential edge of a concave spherical portion (), and a guide member () which guides lubricating oil, which has flowed out from a spherical engagement portion between a convex spherical portion () and a concave spherical portion (), toward an annular recess portion ().

Rotary machining device, method of manufacturing hub unit bearing and method of manufacturing vehicle

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 ringis processed into a staking portionby rotating a diearound a reference axis C in a state in which the diehaving a rotation axis &#x3b1; inclined with respect to the reference axis C is pressed against the axial inner end portion of the hub ringunder a condition that the hub ringis disposed so that a center axis of the hub ringis coaxial or parallel to the reference axis C and the hub ringis supported to be radially movable.

Method for manufacturing hub unit bearing, swaging device, and method for manufacturing vehicle

A hub main body () is supported by a support portion (). At least one block () is engaged with a stationary flange () of an outer ring (). As a support plate () rotates, the outer ring () rotates. A caulking portion () is formed by pressing a pressing die () on a cylindrical portion ().

Rotary caulking device, method of manufacturing hub unit bearing and method of manufacturing vehicle

Provided are an oil pan () which has an annular recess portion () facing an outer circumferential edge of a spherical concave portion () throughout a whole circumference; and a cover () which is constituted in a tubular shape, of which one axial end portion is rotatably supported by a part adjacent to a radially inner side of the annular recess portion (), and of which an axially opposite end portion is rotatably supported by a part of a shaft-equipped spherical seat () on the one axial end side.

Rotary machining apparatus, method of manufacturing hub unit bearing, and method of manufacturing vehicle

In a preparation step, a frame (), a concave spherical seat (), a convex spherical seat (), a rotation body (), a rotating shaft (), and a work holder () are assembled, a laser head () is attached to the convex spherical seat (), and a light receiving unit () is attached to the work holder (). In a rotation body centering step, an irradiation position of a laser beam (LB) with respect to a laser irradiation surface () is changed by rotating the rotation body () while allowing the laser irradiation surface () to be irradiated with the laser beam (LB) emitted from the laser head () and a trajectory of the irradiation position is checked.

Centering method of rotary caulking device, rotary caulking device manufacturing method, hub unit bearing manufacturing method, vehicle manufacturing method, centering device of rotary caulking device, and rotary caulking system

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Fujisawa, Japan

Nobuyuki Hagiwara