公开(公告)号：US20250012324A1

公开(公告)日：2025-01-09

申请号：US18707740

申请日：2022-09-02

Applicant: NIPPON THOMPSON CO., LTD.

Inventor： Mao MOTOYAMA ,  Yusuke TAKAYA

IPC: F16C33/46 ,  F16C19/46 ,  F16C33/34

Abstract: A rolling bearing includes a shell type outer ring having a raceway surface on an inside diameter side thereof, a plurality of rollers arranged on the raceway surface, and a retainer arranged on the inside diameter side of the shell type outer ring and retaining the plurality of needle rollers. The shell type outer ring includes a movement restricting portion that restricts a movement of the retainer in an axial direction. When a diameter of the rollers is a length D1 and a wall thickness of the shell type outer ring is a length T1, the length D1 is not more than 2 mm, and a relationship of 0.5≤length D1/length T1

公开(公告)号：US20240401640A1

公开(公告)日：2024-12-05

申请号：US18697689

申请日：2022-08-05

Applicant: NIPPON THOMPSON CO., LTD.

Inventor： Tomoaki NAKAMURA ,  Mao MOTOYAMA

IPC: F16C29/06

Abstract: A linear motion unit includes: a linear motion mechanism including a track member and a moving member; and a housing including a fastener. The fastener includes a first element, a second element meshable with the first element, a first slider, and a second slider located away from the first slider in longitudinal directions. The first slider and the second slider cause the first element and the second element to be separated from each other when the first slider and the second slider move away from each other, and cause the first element and the second element to mesh with each other when the first slider and the second slider move toward each other. The first slider and the second slider are fixable to the moving member.

公开(公告)号：US12104135B2

公开(公告)日：2024-10-01

申请号：US17752575

申请日：2022-05-24

Applicant: UNIVERSITY OF YAMANASHI ,  NIPPON THOMPSON CO., LTD. ,  Ushio Chemix Corporation

Inventor： Yuichiro Haramoto ,  Shigemasa Itabashi ,  Ayana Takemura ,  Kazuo Okamoto ,  Hiroyuki Otsuki

IPC: C10M105/18 ,  C10N20/00 ,  C10N30/00 ,  C10N40/02 ,  C10N40/18

CPC classification number: C10M105/18 ,  C10M2207/0406 ,  C10N2020/079 ,  C10N2030/30 ,  C10N2030/40 ,  C10N2040/02 ,  C10N2040/18

Abstract: Provided is a lubricant composition including a bicyclic liquid crystal of formula (1), tricyclic liquid crystal compounds of formula (2), and formula (3). The composition is suitable for use in a clean environment, under a high vacuum, under high temperature and a bearing.




R1 and R2 are the same or different from each other, and each is —OCH2CH2CH(R′)CH2CH2OR.





R11 and R21 are the same or different from each other, and each is —OR. R12, R13, R22 and R23 are the same or different from each other, and each is hydrogen or a group —OR.





R31 and R41 are the same or different from each other, and each is —OCH2CH2CH(R′)CH2CH2OR. R32, R33, R42, and R43 are the same or different from each other, and each is hydrogen or —OCH2CH2CH(R′)CH2CH2OR. R is a linear or branched CnH2n+1, 1≤n≤20, and R′ is methyl or ethyl.

公开(公告)号：US12071977B2

公开(公告)日：2024-08-27

申请号：US17759238

申请日：2020-11-12

Applicant: NIPPON THOMPSON CO., LTD.

Inventor： Kenichiro Tsuruta

IPC: F16C29/00 ,  F16C29/04 ,  F16C29/06

CPC classification number: F16C29/005 ,  F16C29/048 ,  F16C29/06

Abstract: A linear motion guide bearing 1 includes a rail 10, a slider 20, and a plurality of rolling elements. The slider 20 has formed therein a pair of circulation passages, which are spaces connecting one end and another end in each of a pair of load-carrying races, which are spaces between a pair of first rolling surfaces 41 and a pair of second rolling surfaces 42. In a cross section perpendicular to the longitudinal direction, the rail 10 includes a bottom wall portion 11, a first side wall portion 12, a second side wall portion 13, and a top wall portion 14. One first rolling surface 41 is made up of a wall surface 15A on an inner side of a first corner portion 15, which is a region where the second side wall portion 13 and the bottom wall portion 11 are connected. The other first rolling surface 41 is made up of a wall surface 16A on an inner side of a second corner portion 16, which is a region where the first side wall portion 12 and the top wall portion 14 are connected.

公开(公告)号：US20240200602A1

公开(公告)日：2024-06-20

申请号：US17904238

申请日：2021-09-17

Applicant: NIPPON THOMPSON CO., LTD.

Inventor： Kenichiro TSURUTA

IPC: F16C33/60 ,  F16C19/36 ,  F16C33/62

CPC classification number: F16C33/60 ,  F16C19/36 ,  F16C33/62

Abstract: A rolling bearing includes a steel outer ring, a steel inner ring having a common central axis with the outer ring and disposed on an inner circumference side of the outer ring, and a plurality of rolling elements disposed to be able to roll on an inner circumferential surface of the outer ring and an outer circumferential surface of the inner ring. The outer ring includes a first outer ring and a second outer ring that is arranged alongside the first outer ring in a first axis direction in which the central axis extends and is fixed to the first outer ring. The inner ring includes a first inner ring and a second inner ring that is arranged alongside the first inner ring in the first axis direction and is fixed to the first inner ring. One and the other of opposing portions in the first and second outer rings and in the first and second inner rings have a protruding portion and a through hole corresponding to the protruding portion formed respectively therein. The protruding portion and the through hole are fitted together, and the protruding portion and the through hole are bonded to each other.

公开(公告)号：US11988276B2

公开(公告)日：2024-05-21

申请号：US17758831

申请日：2020-12-10

Applicant: NIPPON THOMPSON CO., LTD.

Inventor： Tetsuya Sakai ,  Kousuke Tobari

IPC: F16H57/04 ,  B23Q1/25 ,  F16H19/08 ,  F16H57/021 ,  F16H57/039 ,  F16H57/12 ,  F16H57/031

CPC classification number: F16H57/12 ,  B23Q1/25 ,  F16H19/08 ,  F16H57/021 ,  F16H57/039 ,  F16H2057/0213 ,  F16H57/031 ,  F16H57/0424 ,  F16H57/0498

Abstract: A rotary table (1) includes a base body (10), a worm wheel (21), an inner ring (22), a plurality of rolling elements, and a worm screw unit (30). The worm screw unit (30) includes a worm screw (31) held to be rotatable around an axis and having a second gear (31A) meshing with the first gear (215), and a worm screw housing (32) surrounding and holding the worm screw (31) and being fixed to contact the holding surface at a planar contacting surface thereof. One of the holding and contacting surfaces has a cylindrical pin (33) arranged to protrude therefrom. The other of the holding and contacting surfaces has a first recess (11) formed to receive the pin (33), the first recess having a width corresponding to the pin (33) and being elongated in the radial direction of the worm wheel (21).

公开(公告)号：US20240044370A1

公开(公告)日：2024-02-08

申请号：US17904233

申请日：2021-09-17

Applicant: NIPPON THOMPSON CO., LTD.

Inventor： Kenichiro TSURUTA

IPC: F16C33/60 ,  F16C19/36

CPC classification number: F16C33/60 ,  F16C19/36

Abstract: A rolling bearing includes a steel outer ring, a steel inner ring having a common central axis with the outer ring and disposed on an inner circumference side of the outer ring, and a plurality of rolling elements disposed to be able to roll on an inner circumferential surface of the outer ring and an outer circumferential surface of the inner ring. The outer ring includes a first outer ring and a second outer ring that is arranged alongside the first outer ring in a first axis direction in which the central axis extends and is fixed to the first outer ring. The inner ring includes a first inner ring and a second inner ring that is arranged alongside the first inner ring in the first axis direction and is fixed to the first inner ring. The outer ring has a protruding portion and a through hole corresponding to the protruding portion formed in one and the other of opposing portions in the first and second outer rings, the protruding portion and the through hole being fitted together. The inner ring has a protruding portion and a through hole corresponding to the protruding portion formed in one and the other of opposing portions in the first and second inner rings, the protruding portion and the through hole being fitted together. A slit is provided around either one or both of the protruding portion and the through hole.

公开(公告)号：US11807825B2

公开(公告)日：2023-11-07

申请号：US17761917

申请日：2020-08-11

Applicant: NIPPON THOMPSON CO., LTD. ,  Ushio Chemix Corporation

Inventor： Kazuo Okamoto ,  Hiroyuki Otsuki ,  Shigemasa Itabashi ,  Ayana Takemura

IPC: C10M105/18 ,  C10M125/18 ,  C10N30/00 ,  C10N20/00 ,  C10N30/06 ,  C10N30/12 ,  C10N40/02

CPC classification number: C10M105/18 ,  C10M125/18 ,  C10M2201/081 ,  C10M2207/04 ,  C10M2207/0406 ,  C10N2020/079 ,  C10N2030/06 ,  C10N2030/12 ,  C10N2030/41 ,  C10N2040/02

Abstract: Provided are a lubricant composition which is advantageous in that, when applied to a contact area of metal parts, the lubricant composition can suppress generation of rust and can exhibit excellent lubricating performance, and a bearing the lubricant composition having sealed therein. A lubricant composition comprising at least one dicyclic liquid crystal compound represented by the following formula (1), at least one tricyclic liquid crystal compound represented by the following formula (2), and halogen ions, wherein the content of the halogen ions in the lubricant composition is 1 to 900 ppm.

公开(公告)号：US11619262B2

公开(公告)日：2023-04-04

申请号：US17512010

申请日：2021-10-27

Applicant: NIPPON THOMPSON CO., LTD.

Inventor： Tsuguyoshi Nara ,  Yusuke Yamaguchi ,  Daisuke Sato

IPC: F16C29/00 ,  F16C29/06

Abstract: A linear motion guide unit includes a rail having a raceway groove extending on each longitudinal side surface, and a slider fitting over the rail and movable relative to the rail. The rail includes a first rail member and a second rail member connected to each other in a longitudinal direction at a connecting portion. The first rail member has, at least at one end, a protrusion extending in the longitudinal direction. The second rail member has, at least at one end, a notch to be combined with the protrusion. In the connecting portion, the protrusion of the first rail member is combined with the notch of the second rail member to connect the first rail member and the second rail member. The protrusion and the notch are fixed with a columnar member extending in a direction intersecting the longitudinal direction.

公开(公告)号：US20230051758A1

公开(公告)日：2023-02-16

申请号：US17759238

申请日：2021-11-12

Applicant: NIPPON THOMPSON CO., LTD.

Inventor： Kenichiro TSURUTA

IPC: F16C29/00 ,  F16C29/06 ,  F16C29/04

Abstract: A linear motion guide bearing 1 includes a rail 10, a slider 20, and a plurality of rolling elements. The slider 20 has formed therein a pair of circulation passages, which are spaces connecting one end and another end in each of a pair of load-carrying races, which are spaces between a pair of first rolling surfaces 41 and a pair of second rolling surfaces 42. In a cross section perpendicular to the longitudinal direction, the rail 10 includes a bottom wall portion 11, a first side wall portion 12, a second side wall portion 13, and a top wall portion 14. One first rolling surface 41 is made up of a wall surface 15A on an inner side of a first corner portion 15, which is a region where the second side wall portion 13 and the bottom wall portion 11 are connected. The other first rolling surface 41 is made up of a wall surface 16A on an inner side of a second corner portion 16, which is a region where the first side wall portion 12 and the top wall portion 14 are connected.