Title:
ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2020/189200
Kind Code:
A1
Abstract:
A differential device 5 of an electric actuator 1 is provided with a driving rotating body 2, a driven rotating body 3, and a planetary rotating body 52. A first speed reducer 5a is formed between the planetary rotating body 52 and the driving rotating body 2, and a second speed reducer 5b is formed between the planetary rotating body 52 and the driven rotating body 3. The electric actuator 1 is provided with a first bearing 53 for supporting the planetary rotating body 52, to the inside of a rotor 42 of an electric motor 4, and a second bearing 54 for supporting the planetary rotating body 52 in a position that is offset in the axial direction so as not to overlap the rotor 42. The second bearing 54 is configured using a deep groove ball bearing.
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Inventors:
ISHIKAWA SHINTAROU (JP)
SAITO TAKAHIDE (JP)
SAITO TAKAHIDE (JP)
Application Number:
PCT/JP2020/007744
Publication Date:
September 24, 2020
Filing Date:
February 26, 2020
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/06; F01L1/356; F16C19/46; F16C19/54; F16H1/10; F16H1/32; F16H57/021; H02K7/116
Foreign References:
| JP2016211443A | 2016-12-15 | |||
| JP2018194151A | 2018-12-06 | |||
| JP2014152766A | 2014-08-25 |
Other References:
See also references of EP 3943766A4
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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