Patent ID: 11959516
Assignee: THK CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 4:
5. A rolling device comprising:
paired diameter-reduced sections respectively formed at both shaft ends of a hollow shaft tubular material by performing swaging processing on both the shaft ends; and
an intermediate section located between the paired diameter-reduced sections, and having an outer diameter larger than an outer diameter of the paired diameter-reduced sections, wherein
shapes of connection boundaries between the intermediate section and the diameter-reduced sections are formed as perpendicular step-shaped sections stepped substantially perpendicular to an axial direction, and the perpendicular step-shaped sections are formed by the swaging processing,
in which the hollow shaft member is used as an inner member, an outer face of the intermediate section included in the hollow shaft member being provided with a track face formed therein, the rolling device comprising:
an outer member having a track face opposite to the track face of the inner member; and
a plurality of rolling elements disposed between both the track faces in a rollable manner, wherein
the rolling device is produced with the outer member being assembled to an outer side of the inner member with an interposition of the plurality of rolling elements.