Title:
BEARING DEVICE AND SPINDLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/166542
Kind Code:
A1
Abstract:
Provided are: a bearing device in which changes in bearing temperature can be precisely and rapidly detected; and a spindle device equipped with said bearing device. A bearing device (1) comprises a bearing (2), a preloading part (3), a housing (4), and a heat flux sensor (11). The purpose of the bearing (2) is to support a rotating element (5). The preloading part (3) includes an elastic body (9) for preloading the bearing (2). The housing (4) anchors the bearing (2). The heat flux sensor (11) is anchored to either the housing (4) or the preloading part (3), and detects heat flux.
Inventors:
KOIKE TAKASHI (JP)
FUKUSHIMA YASUYUKI (JP)
SHIBUYA YUSUKE (JP)
FUKUSHIMA YASUYUKI (JP)
SHIBUYA YUSUKE (JP)
Application Number:
PCT/JP2020/005024
Publication Date:
August 20, 2020
Filing Date:
February 10, 2020
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B23B19/02; B23Q17/00; F16C19/16; F16C19/52; F16C25/08; F16C33/66; F16C35/12; F16C41/00; F16N7/38; G01M13/04
Foreign References:
| JP2016011691A | 2016-01-21 | |||
| JPS55155918A | 1980-12-04 | |||
| JP2017187451A | 2017-10-12 | |||
| JP2012037013A | 2012-02-23 | |||
| JP2004169756A | 2004-06-17 | |||
| JP2007177850A | 2007-07-12 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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