Title:
SEALING DEVICES FOR ANTI-FRICTION BEARING
Document Type and Number:
WIPO Patent Application WO/2015/041337
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an anti-friction bearing device (11) in which it is possible to perceive whether or not an oil supply unit (13) is working properly while the device remains assembled, without a disassembled inspection or without drawing a communication line or the like out to the exterior. An anti-friction bearing device comprises a combination of an anti-friction bearing (11) and an oil supply unit (13) provided at least with a lubricating oil tank (46), a pump (45) for suctioning lubricating oil from the lubricating oil tank (46) and discharging the lubricating oil from a discharge port, a drive part (44) for driving the pump (45), and a power generator (41) for providing electrical energy to the drive part (44), the oil supply unit (13) being attached to a fixed-ring-side member (12b) of the anti-friction bearing (11) or a spacer (16) adjacent to the anti-friction bearing, wherein a communication device (49) for transmitting working information of the oil supply unit (23) to the exterior is provided inside the oil supply unit.
Inventors:
SUZUKI TAKAYUKI (JP)
MIYAZAKI HIROYUKI (JP)
MIYAZAKI HIROYUKI (JP)
Application Number:
PCT/JP2014/074921
Publication Date:
March 26, 2015
Filing Date:
September 19, 2014
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/78; F16C19/36; F16C33/80; F16J15/3232
Foreign References:
| JP2008008458A | 2008-01-17 | |||
| JP2002328133A | 2002-11-15 | |||
| JP2006010057A | 2006-01-12 | |||
| JP2011256895A | 2011-12-22 | |||
| JP2006342828A | 2006-12-21 | |||
| EP0378939A1 | 1990-07-25 | |||
| JPS5993573A | 1984-05-30 |
Other References:
See also references of EP 3048319A4
Attorney, Agent or Firm:
TORII Kazuhisa et al. (JP)
Kazuhisa Torii (JP)
Kazuhisa Torii (JP)
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