公开(公告)号：US20010012420A1

公开(公告)日：2001-08-09

申请号：US09739965

申请日：2000-12-20

发明人： Tetsuo Unno ,  Yoshio Shoda

IPC分类号： F16C033/58

CPC分类号： F16C19/364 ,  F16C19/225 ,  F16C33/36 ,  F16C33/585 ,  F16C2240/50 ,  F16C2240/70 ,  F16C2300/02

摘要： In the roller bearing, plural of rollers 15 are interposed between an outer raceway 11 of an outer race 12 and an inner raceway 13 of an inner race 14, and a collar portion 16 is formed along one of the axial-direction end portions of the inner raceway 13. The central portion of one of the outer race and inner raceways 11, 14 and the opposing outer peripheral surface of the roller 15 is formed of a first bus with a given radius of curvature. The two end portion sides adjacent to the central portion are formed of a second bus with such a radius of curvature that causes the two end portion sides to part away from the other. The collar surface 19 of the collar portion 16 contacting with an end face of the roller 15 being a convex-shaped spherical surface is formed as a concave-shaped spherical surface.

摘要翻译： 在滚子轴承中，多个辊15插入在外座圈12的外滚道11和内座圈14的内滚道13之间，并且沿着轴承座16的轴向端部之一形成有轴环部16 外圈和内滚道11,14中的一个的中心部分和滚子15的相对的外周面由具有给定曲率半径的第一总线形成。 与中心部分相邻的两个端部侧部分由具有这样的曲率半径的第二总线形成，使得两个端部侧部分远离另一个。 与凸轮状球面的辊15的端面接触的轴环部分16的轴环表面19形成为凹形球面。

公开(公告)号：US5073038B1

公开(公告)日：1999-05-11

申请号：US55128690

申请日：1990-07-12

申请人： TUTHILL CORP

发明人： O'CONNELL TIMOTHY B

IPC分类号： F16C11/06 ,  F16C23/04

CPC分类号： F16C11/0614 ,  F16C11/0638 ,  F16C2220/06 ,  F16C2240/70

公开(公告)号：US5433533A

公开(公告)日：1995-07-18

申请号：US169631

申请日：1993-12-20

申请人： Toshiyuki Imazaike

发明人： Toshiyuki Imazaike

IPC分类号： F16C33/78 ,  F16C33/80

CPC分类号： F16C33/80 ,  F16C33/7846 ,  F16C2240/40 ,  F16C2240/70 ,  F16C2300/12

摘要： In a bearing having inner and outer rings concentrically disposed about a bearing axis, the outer ring is provided with an annular mounting groove in an inner surface facing the axis for receiving a shield plate. The shield plate is an annular disk-like plate having a central opening for receiving the inner ring as the shield plate is mounted between the rings. The shield plate has an annular generally V-shaped groove in a surface facing in the axial direction, the groove being bounded on the outer circumferential side by a first portion of the plate having a nearly triangular shape, and bounded on the inner circumferential side by a second portion of the plate. The first portion of the plate has a thickness in the radial direction which is 1/2 to 1/6 the thickness of the second portion, and a height in the axial direction which is 1/2 to 1/5 the thickness of the second portion. Variations in the depth of the mounting groove occurring during formation of the outer ring are absorbed by variations in the deformation of the first portion of the shield plate so that the shield plate lies normal to the bearing axis and the outer ring is not deformed.

摘要翻译： 在具有围绕轴承轴线同心设置的内环和外环的轴承中，外环在面向轴线的内表面中设置有环形安装槽，用于接收屏蔽板。 屏蔽板是具有用于接纳内圈的中心开口的环形盘状板，因为屏蔽板安装在环之间。 屏蔽板在面向轴向的表面上具有环形的大致V形的槽，该槽在外周侧由板的第一部分限定为近似三角形，并且在内周侧被 板的第二部分。 板的第一部分的径向厚度为第二部分的厚度的1/2至1/6，轴向的高度为第二部分的厚度的1/2至1/5 一部分。 在形成外圈期间发生的安装槽的深度的变化被屏蔽板的第一部分的变形的变化所吸收，使得屏蔽板垂直于轴承轴线并且外圈不变形。

公开(公告)号：US2609256A

公开(公告)日：1952-09-02

申请号：US22363751

申请日：1951-04-28

申请人： BELL TELEPHONE LABOR INC

发明人： BAKER WILLIAM O ,  WINSLOW FIELD H

IPC分类号： F16C33/32 ,  G01R1/10

CPC分类号： G01R1/10 ,  F16C33/32 ,  F16C2206/04 ,  F16C2240/70 ,  Y10T29/49694 ,  Y10T29/49702 ,  Y10T29/4971

公开(公告)号：US12055184B2

公开(公告)日：2024-08-06

申请号：US17919663

申请日：2021-04-20

申请人： NTN Corporation

发明人： Tomoki Matsushita

IPC分类号： F16C19/38 ,  F16C33/36 ,  F16C33/58

CPC分类号： F16C33/583 ,  F16C19/386 ,  F16C33/366 ,  F16C33/585 ,  F16C2240/46 ,  F16C2240/70 ,  F16C2326/02

摘要： The present invention provides a bearing device for vehicle wheel reducing the occurrence of abnormal heat generation caused by metal contact and enhancing anti-seizing properties. Each of the tapered rollers 4 has a large diameter-side end surface 41, the inner raceway surface 31, and the large flange part 32. The large flange part 32 includes a chamfered part 32c and a rounded part 32d. The large flange part 32 has a large flange part-side cutout part 34, the large diameter-side end surface 41 of each of the tapered rollers 32 has a tapered roller-side cutout part 43 having a circular shape formed coaxially with the large diameter-side end surface 41, and a clearance of the large diameter-side end surface 41 as viewed from a contact point between the large diameter-side end surface 41 and the guide surface 32a is greater than or equal to 15 μm.

公开(公告)号：US20240093721A1

公开(公告)日：2024-03-21

申请号：US17932762

申请日：2022-09-16

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Mateusz KESEK ,  Tomasz ROZPUTYNSKI

IPC分类号： F16C3/02 ,  B64D35/00

CPC分类号： F16C3/02 ,  B64D35/00 ,  F16C2240/30 ,  F16C2240/70 ,  F16C2326/43

摘要： A propeller shaft assembly for an aircraft engine includes a shaft having a bore extending through the shaft at a front end thereof, the front end of the shaft having an outer surface facing radially outwardly from the shaft and an inner surface spaced apart from the outer surface and facing radially inwardly to the bore. A front flange extends radially outwardly on the outer surface, the front flange defining a hub side surface adapted to abut with a propeller hub. A reinforcement rib extends radially inwardly towards a central axis of the shaft. At least part of the reinforcement rib is radially aligned with the front flange.

公开(公告)号：US20240003383A1

公开(公告)日：2024-01-04

申请号：US17854878

申请日：2022-06-30

申请人： SCHAEFFLER TECHNOLOGIES AG & CO. KG

发明人： Rajmohan Kolli ,  Zheng Wang ,  Shakeel Shaikh ,  Victoria Poole

IPC分类号： F16C19/18 ,  F16C33/58

CPC分类号： F16C19/181 ,  F16C33/585 ,  F16C2240/34 ,  F16C2240/70

摘要： A bearing assembly is disclosed herein. The bearing assembly includes a first inner ring and a second inner ring, as well as an outer ring. A first plurality of rolling elements are arranged to be supported between the first inner ring and the outer ring. A second plurality of rolling elements are arranged to be supported between the second inner ring and the outer ring. A third plurality of rolling elements are arranged to be supported between the second inner ring and the outer ring. The second plurality of rolling elements is arranged axially between the first and third plurality of rolling elements. Various dimensions and aspects of the bearing assembly are designed in order to provide increased efficiency and a reduced envelope.

公开(公告)号：US20230332647A1

公开(公告)日：2023-10-19

申请号：US18028655

申请日：2021-10-11

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Benjamin KRANK ,  Matthias LEPSCHI ,  Maximilian ROSENBERGER ,  Thomas SPIESS

IPC分类号： F16C33/80 ,  F16C33/66

CPC分类号： F16C33/805 ,  F16C33/66 ,  F16C2240/46 ,  F16C2240/70

摘要： A shaft bearing point has a radial shaft bearing in which a drive shaft is rotatably supported relative to a machine housing. The radial shaft bearing is arranged directly or indirectly in a machine housing wall separating a lubricant space from a lubricant-free space. The radial shaft bearing has a lubricant side facing the lubricant space, and a seal side facing away from the lubricant space, in the axial direction, and a radial shaft seal is provided which is arranged at an axial distance to the seal side such that a lubricant chamber is produced between the seal side and the radial shaft seal ring in the axial direction. The lubricant chamber is equipped with a chamber separating wall. The chamber separating wall separates the lubricant chamber into a storage chamber, which is arranged between the seal side and the chamber separating wall, and a seal chamber, which is arranged between the chamber separating wall and the radial shaft seal ring. The storage chamber and the seal chamber are fluidically connected together via a separating wall throttle. The separating wall throttle has an annular gap as a fluid-conducting connection between the two chambers. The annular gap is formed between the chamber separating wall and the drive shaft and has a permeable height, which is greater than 0.1 mm and less than 3 mm, in the radial direction.

公开(公告)号：US11668343B2

公开(公告)日：2023-06-06

申请号：US17540971

申请日：2021-12-02

申请人： NTN CORPORATION

发明人： Takanori Ishikawa ,  Takashi Kawai ,  Tomoki Matsushita ,  Nozomi Isobe

IPC分类号： F16C33/36 ,  F16C19/36 ,  F16C33/58 ,  C21D9/40

CPC分类号： F16C19/364 ,  F16C33/585 ,  C21D9/40 ,  F16C33/366 ,  F16C2240/50 ,  F16C2240/54 ,  F16C2240/70 ,  F16C2361/61

摘要： A difference between a maximum value and a minimum value of arithmetic mean roughness Ra of an annular surface region in contact with a larger flange surface, in a larger end face of the tapered roller, is not greater than 0.02 μm. A value of a ratio R/RBASE is not smaller than 0.75 and not greater than 0.87 where R represents a set radius of curvature of the larger end face of the tapered roller and RBASE represents a distance from a point which is an apex of a cone angle of the tapered roller to the larger flange surface of the inner ring. A ratio Rprocess/R is not lower than 0.5 where Rprocess represents an actual radius of curvature after grinding of the larger end face of the tapered roller and R represents a set radius of curvature.

公开(公告)号：US20230160429A1

公开(公告)日：2023-05-25

申请号：US17912580

申请日：2020-04-20

申请人： Mitsubishi Electric Corporation

发明人： Naomichi YANAGIDATE ,  Shinsaku MAEDA

IPC分类号： F16C33/58 ,  F16C19/36

CPC分类号： F16C33/585 ,  F16C19/361 ,  F16C2240/70

摘要： An outer ring case includes an annular guide groove housing an end of each of a plurality of inner rollers. A groove width representing a radial length of the guide groove is greater than a diameter of each inner roller. A radius representing a distance from a bearing axis to an inner wall face of the guide groove that is radially outer is smaller than a distance from the bearing axis to an axial center of each of rollers plus a radius of each inner roller.