Title:
SPEED REDUCER
Document Type and Number:
Japanese Patent JP2022149594
Kind Code:
A
Abstract:
To provide a speed reducer capable of achieving reduction in weight and compactification, and capable of suppressing an increase in surface pressure occurring in components of a bearing.SOLUTION: A speed reducer (1) comprises a reduction mechanism having internal gears (21g, 22g) and an external gear (15), an output member (22) that outputs rotation reduced by the reduction mechanism; and a bearing (28) supporting the output member. The bearing (28) has: an inner ring (28i) having an inner ring-side convex surface (Si) that is convex as a whole toward a first radial side, which is one side in a radial direction; an outer ring (28o) having an outer ring-side convex surface (So) that is convex as a whole toward the first radial direction and faces the inner ring-side convex surface (Si); and an intervening member (28k) arranged between the inner ring-side convex surface and the outer ring-side convex surface.SELECTED DRAWING: Figure 1
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Inventors:
ARAKI TADAYOSHI
ISHIZUKA MASAYUKI
ISHIZUKA MASAYUKI
Application Number:
JP2021051817A
Publication Date:
October 07, 2022
Filing Date:
March 25, 2021
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES
International Classes:
F16H1/32; F16C23/04; F16C23/08; F16J3/04
Attorney, Agent or Firm:
Hiroshi Arafune
Yoshio Arafune
Yoshio Arafune
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