Title:
COOLING STRUCTURE OF BEARING DEVICE
Document Type and Number:
Japanese Patent JP2015183738
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cooling structure of a bearing device capable of efficiently cooling the bearing device while suppressing power consumption necessary for supplying compressed air.SOLUTION: A bearing device J is provided with a stationary-side spacer 4 and a rotation-side spacer 5 respectively on a stationary-side bearing ring 2 and a rotation-side bearing ring 3 opposed to the inside and outside of a rolling bearing 1, in adjacent to each other. The stationary-side bearing ring 2 and the stationary-side spacer 3 are disposed on a stationary member 6, and the rotation-side bearing ring 3 and the rotation-side spacer 5 are disposed on a rotation member 7. An annular recessed portion 13 is formed on a peripheral face where the spacers are opposed to each other, of the stationary-side spacer 4, and a nozzle hole 15 for discharging compressed air A toward a peripheral face where the spacers are opposed to each other, of the rotation side spacer 5 from an outlet 13a formed on a bottom surface of the recessed portion 13, is formed while inclined forward in the rotating direction of the rotation-side spacer 5.
Inventors:
YOSHINO MASATO
ONDA YUJI
ONDA YUJI
Application Number:
JP2014059358A
Publication Date:
October 22, 2015
Filing Date:
March 22, 2014
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C37/00; B23B19/02; B23Q11/12; F16C33/58
Domestic Patent References:
| JP2008075882A | 2008-04-03 | |||
| JP2010127399A | 2010-06-10 | |||
| JP2000291674A | 2000-10-20 | |||
| JP2011167799A | 2011-09-01 |
Attorney, Agent or Firm:
Masashi Noda
Shuji Sugimoto
Shuji Sugimoto
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