Title:
HALF BEARING FOR CRANK SHAFT OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2022054960
Kind Code:
A
Abstract:
To provide a half bearing for a crank shaft of an internal combustion engine excellent in embedding performance of foreign matters mixed therein together with an oil.SOLUTION: A depth of circumferential grooves 6 is constituted to be minimum at circumferential central portions of inner peripheral surfaces 5 of half bearings 2, 3, and gradually increased toward circumferential end portions of the inner peripheral surfaces 5 of the half bearings 2, 3. Thus the depth of the circumferential grooves 6 is deep near the circumferential end portions of the inner peripheral surfaces 5 of the half bearings 2, 3, and allowance to embed foreign matters in the circumferential grooves 6 in which a soft bearing material 8 is housed, is increased. Accordingly, the foreign matters can be easily completely embedded in the soft bearing material 8 in the circumferential grooves 6, and hardly project to a radial inner side with respect to the inner peripheral surfaces 5, even when the foreign matters are locally embedded in a concentrated manner near the circumferential end portions in the circumferential grooves 6 in which the soft bearing material 8 is housed.SELECTED DRAWING: Figure 1
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Inventors:
SHIMOFUSA HIROYASU
KATO KENTA
KATO KENTA
Application Number:
JP2020162264A
Publication Date:
April 07, 2022
Filing Date:
September 28, 2020
Export Citation:
Assignee:
DAIDO METAL CO LTD
International Classes:
F16C9/02; F16C33/10
Attorney, Agent or Firm:
Hiroto Furuta
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