公开(公告)号：US12129891B2

公开(公告)日：2024-10-29

申请号：US17244308

申请日：2021-04-29

Applicant: NTN CORPORATION

Inventor： Tomonori Yamashita ,  Yoshinori Ito ,  Daisuke Takeda ,  Yuta Ohashi

IPC: B22F5/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/16 ,  F16C33/10 ,  F16C33/12 ,  F16C33/14

CPC classification number: F16C33/121 ,  B22F5/00 ,  C22C33/0278 ,  C22C38/00 ,  C22C38/008 ,  C22C38/16 ,  F16C33/10 ,  F16C33/104 ,  F16C33/128 ,  F16C33/14 ,  F16C33/145 ,  B22F2998/10 ,  F16C2204/10 ,  F16C2204/60 ,  F16C2240/48 ,  Y10T428/12014 ,  B22F2998/10 ,  B22F1/09 ,  B22F3/02 ,  B22F3/10

Abstract: Provided is a sintered bearing formed mainly of an iron structure (33) and a copper structure (31) which are formed of a partially diffusion-alloyed powder (11) of an iron powder (12) and a copper powder (13). The sintered bearing includes a copper structure (31d) formed of a granular elemental copper powder (13′) having a grain diameter of 45 μm or less, the ratio of the copper structure (31d) being 10 mass % or less. With this, a further increase in strength of the sintered bearing can be realized.

公开(公告)号：US11867230B2

公开(公告)日：2024-01-09

申请号：US18047081

申请日：2022-10-17

Applicant: TRANE INTERNATIONAL INC.

Inventor： Sung Hwa Jeung ,  Jay H. Johnson ,  Donald Lee Hill ,  Matthew Cambio

IPC: F16C32/06 ,  F16C33/10 ,  F25B31/00 ,  F16F15/023 ,  F16F15/02

CPC classification number: F16C32/0618 ,  F16C32/0677 ,  F16C33/104 ,  F16C33/1005 ,  F16F15/022 ,  F16F15/0237 ,  F25B31/00 ,  F16C2360/00 ,  F16C2360/44 ,  F16C2362/52 ,  F25B2400/07 ,  F25B2500/16

Abstract: A porous gas bearing is disclosed. The porous gas bearing includes a housing having a fluid inlet and an aperture. A porous surface layer is disposed within the housing surrounding the aperture in a circumferential direction. The porous surface layer is in fluid communication with the fluid inlet. A damping system includes a damping system including a biasing member, the biasing member being disposed in a passageway that extends along the longitudinal direction of the aperture and circumferentially about the aperture, wherein the biasing member is arranged radially outward from the porous surface layer.

公开(公告)号：US20180258989A1

公开(公告)日：2018-09-13

申请号：US15865398

申请日：2018-01-09

Applicant: Deutsches Zentrum fuer Luft- und Raumfahrt e.V.

Inventor： Andreas Haberzettl ,  Hermann Hald ,  Wolfgang Kitsche ,  Markus Ortelt

IPC: F16C33/10 ,  F16C37/00 ,  F16C33/20

CPC classification number: F16C33/104 ,  B29C70/06 ,  F16C33/043 ,  F16C33/18 ,  F16C33/201 ,  F16C33/208 ,  F16C33/24 ,  F16C37/002 ,  F16C2208/02 ,  F16C2360/44

Abstract: A sliding bearing device is proposed which comprises a bearing seating having a first sliding surface and a bearing body having a second sliding surface, wherein the bearing body is accommodated by the bearing seating and the first sliding surface and the second sliding surface face each other, wherein the bearing seating and/or the bearing body is made of an open-pore fibre composite material at least in a sliding region which forms the respective sliding surface.

公开(公告)号：US20180221956A1

公开(公告)日：2018-08-09

申请号：US15944271

申请日：2018-04-03

Applicant: NTN CORPORATION

Inventor： Makoto JINNOU ,  Natsuhiko MORI ,  Yoshinori ITO

IPC: B22F5/00 ,  C22C9/01 ,  F16C33/14 ,  C22C1/08 ,  B22F5/10 ,  B22F3/11 ,  B22F3/10

CPC classification number: B22F5/00 ,  B22F1/007 ,  B22F3/02 ,  B22F3/1003 ,  B22F3/11 ,  B22F3/12 ,  B22F3/24 ,  B22F5/10 ,  B22F5/106 ,  B22F2201/01 ,  B22F2301/10 ,  B22F2302/40 ,  B22F2302/45 ,  C22C1/08 ,  C22C1/10 ,  C22C9/01 ,  C22C9/10 ,  F16C33/104 ,  F16C33/128 ,  F16C33/145 ,  F16C2204/10 ,  F16C2204/20

Abstract: Provided is a sintered bearing (1), including 3 to 12% by mass of aluminum, 0.05 to 0.5% by mass of phosphorus, and the balance including copper as a main component, and inevitable impurities, the sintered bearing (1) having a structure in which an aluminum-copper alloy is sintered with a sintering aid added to raw material powder, a pore (db, do) in a surface layer portion of the sintered bearing (1) being formed smaller than an internal pore (di).

公开(公告)号：US20180051747A1

公开(公告)日：2018-02-22

申请号：US15561184

申请日：2016-03-15

Applicant: NTN CORPORATION

Inventor： Tomonori YAMASHITA ,  Yoshinori ITO ,  Daisuke TAKEDA ,  Yuta OHASHI

IPC: F16C33/12 ,  B22F5/00 ,  F16C33/14 ,  F16C33/10

CPC classification number: F16C33/121 ,  B22F5/00 ,  B22F2998/10 ,  C22C33/0278 ,  C22C38/00 ,  C22C38/008 ,  C22C38/16 ,  F16C33/10 ,  F16C33/104 ,  F16C33/128 ,  F16C33/14 ,  F16C33/145 ,  F16C2204/10 ,  F16C2204/60 ,  F16C2240/48 ,  Y10T428/12014 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/10

Abstract: Provided is a sintered bearing formed mainly of an iron structure (33) and a copper structure (31) which are formed of a partially diffusion-alloyed powder (11) of an iron powder (12) and a copper powder (13). The sintered bearing includes a copper structure (31d) formed of a granular elemental copper powder (13′) having a grain diameter of 45 μm or less, the ratio of the copper structure (31d) being 10 mass % or less. With this, a further increase in strength of the sintered bearing can be realized.

公开(公告)号：US20170211622A1

公开(公告)日：2017-07-27

申请号：US15329446

申请日：2015-07-22

Applicant: OILES CORPORATION

Inventor： Maki HIRAYAMA ,  Taku WATAKABE

IPC: F16C33/10 ,  F16C17/02 ,  B29C45/66

CPC classification number: F16C33/1095 ,  B29C45/661 ,  B29C45/83 ,  F16C11/045 ,  F16C17/02 ,  F16C33/102 ,  F16C33/104 ,  F16C33/1065 ,  F16C33/16 ,  F16C33/24 ,  F16C2322/00

Abstract: A bearing bush 1 for use in a toggle has a cylindrical metallic base material 2 and a solid lubricant 3 embedded in the metallic base material 2, and the metallic base material 2 has dead end grooves 5 formed in a cylindrical inner peripheral surface 4, an annular groove 6 formed in the cylindrical inner peripheral surface 4, and circular holes 7a and 7b as well as 7c and 7d formed in each of a pair of semicylindrical inner peripheral surfaces 4a and 4b adjacent to each other in an axial direction X and two pairs of semicylindrical inner peripheral surfaces 4c and 4d sandwiching the pair of semicylindrical inner peripheral surfaces 4a and 4b in a circumferential direction R and adjacent to each other in the axial direction X in each pair.

公开(公告)号：US20170167537A1

公开(公告)日：2017-06-15

申请号：US15287029

申请日：2016-10-06

Applicant: Tokyo Parts Industrial Co., Ltd.

Inventor： Masahisa TUCHIYA

IPC: F16C33/12 ,  H02K5/167 ,  F16C17/10

CPC classification number: F16C33/128 ,  F16C17/107 ,  F16C33/104 ,  F16C2226/12 ,  F16C2380/26 ,  H02K5/1675

Abstract: A double bearing comprising an inner bearing and an outer bearing, which has a greater oil content than the inner bearing, is used as a bearing for a brushless motor. The inner bearing has an upper bearing part, a lower bearing part, and a central relief part. Gaps are provided between the bearing parts and a bearing housing, along the entire axial length of all of the bearing parts of the inner bearing.

公开(公告)号：US20160230769A1

公开(公告)日：2016-08-11

申请号：US15021771

申请日：2014-09-05

Applicant: Shinji KOMATSUBARA

Inventor： Shinji KOMATSUBARA

IPC: F04D25/08 ,  F04D29/056 ,  F16C33/14 ,  F16C33/12 ,  F16C17/02 ,  F16C33/10

CPC classification number: F04D25/08 ,  F04D25/062 ,  F04D29/056 ,  F04D29/057 ,  F05D2230/22 ,  F16C17/02 ,  F16C17/107 ,  F16C33/1015 ,  F16C33/104 ,  F16C33/107 ,  F16C33/109 ,  F16C33/128 ,  F16C33/145 ,  F16C2202/10 ,  F16C2220/20 ,  F16C2240/40 ,  F16C2240/70 ,  F16C2360/46 ,  F16C2361/00 ,  F16C2370/12 ,  F16C2380/26 ,  G11B19/2036

Abstract: A sintered metal bearing is formed of a porous body formed through sintering of a compact obtained through compression molding of raw-material power. The sintered metal bearing includes a dynamic pressure generating portion formed on an inner peripheral surface, the dynamic pressure generating portion including dynamic pressure generating groove array regions formed continuously to each other in an axial direction of the sintered metal bearing. The dynamic pressure generating groove array regions each include a plurality of dynamic pressure generating grooves arrayed so as to be inclined with respect to a circumferential direction of the sintered metal bearing. An axial dimension of the sintered metal bearing is set to 6 mm or less, and a density ratio of the sintered metal bearing is set to 80% or more and 95% or less.

Abstract translation: 烧结金属轴承由通过压缩成型原料获得的压块的烧结而形成的多孔体形成。 烧结金属轴承包括形成在内周面上的动压产生部，动压产生部包括在烧结金属轴承的轴向上彼此连续形成的动压产生槽阵列区域。 动压产生槽阵列区域各自包括排列成相对于烧结金属轴承的圆周方向倾斜的多个动压产生槽。 将烧结金属轴承的轴向尺寸设定为6mm以下，将烧结金属轴承的密度比设定为80％以上且95％以下。

公开(公告)号：US09404535B2

公开(公告)日：2016-08-02

申请号：US14426902

申请日：2013-09-24

Applicant: HITACHI CHEMICAL COMPANY, LTD.

Inventor： Hidekazu Tokushima ,  Hideaki Kawata ,  Daisuke Fukae ,  Osamu Mawatari ,  Hideki Akita ,  Makoto Sugaya ,  Akiko Satou ,  Osamu Gokita ,  Shigeyuki Sakurai

IPC: F16C33/04 ,  F16C33/10 ,  C22C38/00 ,  F16C17/00 ,  F16C11/02 ,  F16C33/12 ,  C22C38/04 ,  C22C38/16 ,  C22C38/60 ,  C21D9/40 ,  F16C33/14

CPC classification number: F16C33/104 ,  C21D9/40 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/04 ,  C22C38/16 ,  C22C38/60 ,  F16C11/02 ,  F16C17/00 ,  F16C33/1095 ,  F16C33/128 ,  F16C33/145 ,  F16C2204/10 ,  F16C2204/60

Abstract: A sliding bearing assembly for joints of construction equipment can be provided, in which production cost is reduced by decreasing the used amount of Cu and sulfides having high fixability to a matrix are dispersed. The sliding bearing assembly for joints of construction equipment, includes at least a shaft and a bush made of an iron-based sintered material which functions as a sliding bearing, in which the bush has the overall composition of, by mass %, 0.1 to 10% of Cu, 0.2 to 1.2% of C, 0.03 to 0.9% of Mn, 0.36 to 1.68% of S, and the balance of Fe and inevitable impurities, a metal structure has pores dispersed in a matrix mainly including a martensite structure and sulfide particles precipitated and dispersed, and the sulfide particles are dispersed at 1 to 7 volume % in the matrix.

Abstract translation: 可以提供一种用于施工设备接头的滑动轴承组件，通过减少对基体的定影性高的Cu和硫化物的使用量的降低来降低生产成本。 用于施工设备接头的滑动轴承组件至少包括由用作滑动轴承的铁基烧结材料制成的轴和衬套，其中衬套的总组成按质量％计为0.1至10 Cu的％，Cu的0.2〜1.2％，Mn的0.03〜0.9％，S的0.36〜1.68％，Fe和不可避免的杂质的余量，金属结构体在主要包含马氏体组织和硫化物的基体中分散有孔 颗粒沉淀并分散，硫化物颗粒以基体中的1〜7体积％分散。

公开(公告)号：US20160138651A1

公开(公告)日：2016-05-19

申请号：US14899896

申请日：2014-06-25

Applicant: NTN CORPORATION

Inventor： Tetsuya KURIMURA ,  Fuyuki ITO ,  Shinji KOMATSUBARA ,  Tadahiro UCHIYAMA

IPC: F16C33/14 ,  B22F3/16 ,  H02K7/08 ,  C22C9/00 ,  F16C32/06 ,  F16C33/10 ,  B22F1/00 ,  B22F5/00

CPC classification number: F16C33/145 ,  B22F1/0003 ,  B22F1/0014 ,  B22F3/16 ,  B22F5/00 ,  B22F2301/10 ,  B22F2301/30 ,  B22F2301/35 ,  C22C1/0425 ,  C22C9/00 ,  C22C9/02 ,  F16C17/08 ,  F16C17/102 ,  F16C32/0633 ,  F16C33/104 ,  F16C33/128 ,  F16C2204/10 ,  F16C2370/12 ,  H02K7/08

Abstract: A sintered bearing includes a sintered metal formed by using a metal powder mixture containing copper powder and iron powder. The metal powder mixture contains 80 wt % or more of particles having an average particle diameter of less than 45 μm. The copper powder contains electrolytic copper powder. The electrolytic copper powder contains 40 number % or more of particles having a circularity of 0.64 or more.

Abstract translation: 烧结轴承包括通过使用含有铜粉和铁粉的金属粉末混合物形成的烧结金属。 金属粉末混合物含有平均粒径小于45μm的80重量％以上的粒子。 铜粉含有电解铜粉。 电解铜粉末含有40个数％以上的圆形度为0.64以上的粒子。