Title:
BEARING DEVICE WITH SENSOR, AND SPINDLE DEVICE FOR MACHINE TOOL
Document Type and Number:
WIPO Patent Application WO/2024/101268
Kind Code:
A1
Abstract:
In this bearing device with a sensor, configured such that a preload is transmitted to a first inner race (31), a first rolling element (32), a first outer race (30), an outer race spacer (26), a second outer race (35), a second rolling element (37), and a second inner race (36), a pressing force in a direction causing the first outer race (30) and the second outer race (35) to approach one another is applied to an axial direction end surface of the first outer race (30) on the opposite side to the second outer race (35) and to an axial direction end surface of the second outer race (35) on the opposite side to the first outer race (30), and the magnitude of the pressing force is set to be larger than the preload.
Inventors:
HASHIZUME SHOHEI (JP)
YAMAMOTO YOHEI (JP)
YAMAMOTO YOHEI (JP)
Application Number:
PCT/JP2023/039606
Publication Date:
May 16, 2024
Filing Date:
November 02, 2023
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C41/00; F16C19/52; F16C19/54; F16C35/12; G01L5/00; B23B19/02; B23Q17/00
Domestic Patent References:
| WO2022065199A1 | 2022-03-31 | |||
| WO2022210561A1 | 2022-10-06 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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