Title:
BEARING AND BEARING UNIT
Document Type and Number:
Japanese Patent JP2018151024
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To liquefy an ambient fluid which is evaporated by temperature rise caused when a bearing is cooled.SOLUTION: A bearing 12 includes: an inner ring 15; an outer ring 16; rolling elements 17 disposed between the inner ring 15 and the outer ring 16; and a retainer 18 which retains the rolling elements 17. The bearing 12 causes an ambient fluid having a cryogenic temperature to pass through an interior part to perform cooling. The bearing 12 includes: an inflow port 20 which is located at the upstream side in an ambient fluid flow direction and introduces the ambient fluid thereinto; and an outflow port 21 which is located at the downstream side of the inflow port 20 and discharges the ambient fluid flowing thereinto to the downstream side. The retainer 18 has: a body part 18a disposed between the inflow port 20 and the rolling elements 17; and a pocket 18b which retains the rolling elements 17 and opens to the downstream side.SELECTED DRAWING: Figure 3
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Inventors:
NAKAMURA TOMOYA
INOUE WAKANA
INOUE WAKANA
Application Number:
JP2017048501A
Publication Date:
September 27, 2018
Filing Date:
March 14, 2017
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C33/41; F01D25/16; F02K9/48; F04D7/02; F04D29/049; F04D29/18; F04D29/58; F16C19/16; F16C19/54; F16C33/66; F16C37/00
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Junya Yamamoto
Tsuyoshi Kumano
Junya Yamamoto