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Patent Searching and Data


Title:
ELECTRIC LINEAR ACTUATOR AND ELECTRIC DISC BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/043114
Kind Code:
A1
Abstract:
 To use fewer types of planetary rollers incorporated in an electric linear actuator and reduce costs. A small-diameter part (21b) is provided to one end surface of a planetary roller (21), and the axial length of the small-diameter part (21b) is altered so that a load of uniform axial force is imposed on a thrust bearing (24). A small-diameter part (21c) having an axial length of at least 0 is provided to the other side surface of the planetary roller (21), the combined axial length of the small-diameter part (21c) of the other end surface and the small-diameter part (21b) of the one end surface is equal among a plurality of planetary rollers (21), and the plurality of planetary rollers (21) all have the same axial length.

Inventors:
EGUCHI MASAAKI (JP)
YAMASAKI TATSUYA (JP)
Application Number:
JP2015/075704
Publication Date:
March 24, 2016
Filing Date:
September 10, 2015
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H25/24; F16C19/30; F16D55/00; F16D55/06; F16D55/225; F16H19/02; F16H25/20
Foreign References:
JP2011179539A2011-09-15
JP2011074950A2011-04-14
JPS63172056A1988-07-15
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
Naoya Kamata (JP)
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