Title:
BEARING DEVICE
Document Type and Number:
Japanese Patent JP2015001251
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a bearing device capable of reducing an oil-supply amount of a lubricant to a main bearing, and being excellent in the supply of the lubricant to a crank pin portion side.SOLUTION: A bearing device 1 for supporting a journal portion 6 includes: a journal portion 6, a main bearing 4 composed of half-split bearings 41 and 42, a cylinder block 81 and a bearing cap 82. One half-split bearing 41 held by a holding hole 81a of the cylinder block 81 has a first circumferential direction oil groove 41a and a second circumferential direction oil groove 41b formed at positions opposite to an inlet 6b of an oil path 6a of the journal portion 6 on an inner peripheral surface, a separating portion 41c for partitioning the first circumferential direction oil groove 41a and the second circumferential direction oil groove 41b, and an oil hole 41d penetrating from the first circumferential direction oil groove 41a to an outer peripheral surface. The circumferential length of the separating portion 41c at an inner peripheral surface position of the one half-split bearing 41 is made to be shorter than the circumferential length of the inlet 6b of the journal portion 6.
Inventors:
KATO KENTA
YAMAMOTO TAKEHARU
YAMAMOTO TAKEHARU
Application Number:
JP2013125171A
Publication Date:
January 05, 2015
Filing Date:
June 14, 2013
Export Citation:
Assignee:
DAIDO METAL CO LTD
International Classes:
F16C9/02; F16C33/10
Attorney, Agent or Firm:
Patent business corporation Asamura patent firm
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