Title:
ELECTRIC ACTUATOR
Document Type and Number:
Japanese Patent JP2021143721
Kind Code:
A
Abstract:
To suppress the outflow of a lubricant from an engaging portion of an eccentric speed reducer, and to prevent the depletion of the lubricant.SOLUTION: An electric actuator includes a speed reducer 5 which has an electric motor 4 capable of supplying driving force, an input rotator 2 capable of rotating about a rotation axis X, a planetary rotator 22 capable of rotating and revolving about the rotation axis, and an output rotator 3 capable of rotating about the rotation axis X, and in which the planetary rotator 22 engages with the input rotator 2 and the output rotator 3 to change the rotation phase difference of the output rotator 3 with respect to the input rotator 2. The speed reducer 5 has an eccentric member 21 that can rotate eccentrically with respect to the rotation axis X. A rolling bearing 16 with a seal is arranged between the eccentric member 21 and the output rotator 3, and the output rotator 3 is supported by the rolling bearing 16 with a seal so as to rotate with respect to the eccentric member 21.SELECTED DRAWING: Figure 1
Inventors:
ISHIKAWA SHINTARO
TAKAGI HISASHI
TAKAGI HISASHI
Application Number:
JP2020042983A
Publication Date:
September 24, 2021
Filing Date:
March 12, 2020
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16H1/32; F16C19/06; F16C19/54; F16C33/76; F16J15/3232; H02K7/116
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Tsuyoshi Kumano