BEARING DEVICE AND MACHINE DEVICE - NTN TOYO BEARING CO LTD

Title:

BEARING DEVICE AND MACHINE DEVICE

Document Type and Number:

WIPO Patent Application WO/2016/148009

Kind Code:

A1

Abstract:

A bearing device (10) is provided with a bearing (11) and a lubricating oil supply unit (20) which is connected to the bearing (11). The bearing (11) includes an outer ring (13), an inner ring (14) which has an inner ring rolling surface on the outer peripheral surface thereof and which is disposed inside the outer ring (13), and a plurality of rolling bodies (15) which are in contact with the inner ring rolling surface and which are arranged side by side on an annular raceway. The lubricating oil supply unit (20) includes: a supply section (drive circuit, pump, and nozzle member (37)) which supplies lubricating oil to the inside of the bearing (11); and an electric power generation section which generates electric power. The supply section is operated by electric power generated by the electric power generation section. The outer peripheral surface of the inner ring (14) includes a sloped section (14a), the distance of which to the outer ring (13) decreases as the sloped section (14a) extends from an axial end of the bearing (11) toward the inner ring rolling surface. The supply section supplies lubricating oil toward the sloped section (14a) of the inner ring (14).

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Inventors:

ONDA YUSHI (JP)

Application Number:

PCT/JP2016/057560

Publication Date:

September 22, 2016

Filing Date:

March 10, 2016

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)

International Classes:

F16C19/06; F16C33/58; F16C33/66; F16N7/38

Foreign References:

JP2011169362A	2011-09-01
JP2014037878A	2014-02-27
JP2014062618A	2014-04-10
JP2013083335A	2013-05-09

Other References: