STRAIN-WAVE GEARING AND INDUSTRIAL ROBOT

Title:

STRAIN-WAVE GEARING AND INDUSTRIAL ROBOT

Document Type and Number:

WIPO Patent Application WO/2023/210114

Kind Code:

A1

Abstract:

This strain-wave gearing is provided with an inner spline (3), an outer spline (5), and a wave generator (6). The wave generator (6) is provided with: a cam (31) having a non-circular outer peripheral surface (31a); and a fourth bearing (32) disposed between the inner peripheral surface (21a) of the outer spline (5) and the outer peripheral surface (31a) of the cam (31). The fourth bearing (32) is provided with an outer ring (33), an inner ring (34), a plurality of spheres (35), and a retainer (36). Also provided is a limiter (37) that abuts on the inner ring (34) so as to avoid contact with the retainer (36), and that limits movement of the fourth bearing (32) in the direction of the rotational axis (C). The limiter (37) is formed so that the radial projection length of the cam (31) from the outer peripheral surface (31a) is uniform over the entire periphery of the outer peripheral surface (31a).

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Inventors:

ASAKAWA YUICHI (JP)
KAWACHI RYOTA (JP)

Application Number:

PCT/JP2023/005188

Publication Date:

November 02, 2023

Filing Date:

February 15, 2023

Export Citation:

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Assignee:

NABTESCO CORP (JP)

International Classes:

B25J19/00; F16C35/063; F16H1/32

Foreign References:

JPH03119645U	1991-12-10
JP2020197264A	2020-12-10
JPS6113056A	1986-01-21

Attorney, Agent or Firm:

TAZAKI Akira et al. (JP)

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