公开(公告)号：US20180238389A1

公开(公告)日：2018-08-23

申请号：US15753325

申请日：2016-05-24

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Kwangik NA ,  Shigeyoshi MORI ,  Tadatoshi NAGASAKI

IPC: F16C33/10 ,  F16N7/20 ,  H02K5/167

CPC classification number: F16C33/107 ,  F04D29/582 ,  F16C17/04 ,  F16C17/10 ,  F16C33/10 ,  F16C33/106 ,  F16C33/1085 ,  F16C37/002 ,  F16C2300/34 ,  F16C2360/00 ,  F16N7/14 ,  F16N7/20 ,  F16N39/02 ,  H02K5/167 ,  H02K2205/03

Abstract: When an annular portion of a thrust collar rotates together with a rotating shaft member, centrifugal force and shear force, or differential pressure caused by difference in flow rate, for example, are generated in lubricating oil in a circulation oil chamber. With this, the lubricating oil in the circulation oil chamber is guided from the inner peripheral side to the outer peripheral side of the annular portion, through a circulation hole penetrating the annular portion. The flow of lubricating oil guided by the circulation hole forms a flow of lubricating oil from a lower oil chamber to an upper oil chamber through the circulation oil chamber. As a result, the lubricating oil stored in the lower oil chamber is circulated to the upper oil chamber through the circulation oil chamber, by rotation of the thrust collar.

公开(公告)号：US20210215204A1

公开(公告)日：2021-07-15

申请号：US17059832

申请日：2019-07-05

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Kwangik NA ,  Yuji KAWAAI ,  Tadatoshi NAGASAKI

IPC: F16C41/00 ,  F16C17/24

Abstract: In order to enable a bearing system in which a plurality of bearings operate simultaneously or in association with each other to achieve an optimal overall performance: this bearing system is equipped with a bearing A and a measurement execution unit A therefor, a bearing B and a measurement execution unit B therefor, and a control unit for controlling the measurement execution unit A and the measurement execution unit B; the control unit transmits an instruction to the measurement execution unit A and the measurement execution unit B to enable execution of the performance required of the bearing system. The measurement execution unit A and the measurement execution unit B respectively operate the bearing A and the bearing B under an instructed operation condition. The relationship of an operation condition A of the bearing A and an operation condition B of the bearing B to an index, which indicates each of the operational states of the bearing A and the bearing B when the bearing A and the bearing B are operated under the operation conditions therefor, has been measured and saved in advance. The control unit references the relationship and accordingly transmits an instruction to the measurement execution unit A and the measurement execution unit B.

公开(公告)号：US20170314614A1

公开(公告)日：2017-11-02

申请号：US15523468

申请日：2016-02-24

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Shigeru INAMI ,  Tetsuya OGAWA ,  Tadatoshi NAGASAKI

IPC: F16C17/02 ,  F16C33/20

CPC classification number: F16C17/02 ,  F16C17/04 ,  F16C33/046 ,  F16C33/20 ,  F16C33/206 ,  F16C33/208 ,  F16C2240/54 ,  F16C2240/60 ,  F16C2360/22

Abstract: A resin coating layer in a sliding member has a surface shape indicated by a shape line. This shape line is divided into recessed sections and protruding sections by an average line for uneven areas. The inclination R of a straight line connecting the bottom of these recessed sections and the peak of these protruding sections is classified into Ra: R