Title:
BALL SCREW DEVICE, MANUFACTURING METHOD OF MACHINE COMPONENT, MANUFACTURING METHOD OF MACHINE DEVICE, MANUFACTURING METHOD OF VEHICLE, MACHINE COMPONENT, MACHINE DEVICE, VEHICLE, HYDRAULIC FORMING METHOD, AND FORM BLOCK FOR HYDRAULIC FORMING
Document Type and Number:
Japanese Patent JP2022084719
Kind Code:
A
Abstract:
To provide a ball screw device which is advantageous for cost reduction, and to provide a manufacturing method of a machine component.SOLUTION: A ball screw device includes a nut (3), a screw shaft, balls disposed between the nut (3) and the screw shaft. The nut (3) has: a first member (11) which is disposed enclosing the screw shaft; a second member (10) disposed between the screw shaft and the first member (11); and a third member (12) disposed between the first member (11) and the second member (10). The third member (12) has a laminate (12A) in which plates (22a, 22b) are laminated in an axial direction. The laminate (12A) has an inner surface facing an outer surface of the second member (10). The inner surface of the laminate (12A) has a shape which corresponds to a shape of the outer surface of the second member (10).SELECTED DRAWING: Figure 5
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Inventors:
YAMAMOTO MASATO
Application Number:
JP2022035692A
Publication Date:
June 07, 2022
Filing Date:
March 08, 2022
Export Citation:
Assignee:
NSK LTD
International Classes:
F16H25/22; B21D26/033; B21D26/047; F16H25/24
Attorney, Agent or Firm:
Shu Oikawa
Yuichiro Shimizu
Hiroki Ninai
Ryohei Ishida
Yuichiro Shimizu
Hiroki Ninai
Ryohei Ishida
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