公开(公告)号：US11867227B2

公开(公告)日：2024-01-09

申请号：US17596755

申请日：2020-06-11

Applicant: MINEBEA MITSUMI Inc.

Inventor： Hideo Fujiura ,  Yukinori Hirai ,  Shintaro Takata

IPC: F16C19/52 ,  F16C33/58 ,  G01L5/00 ,  G01M13/04 ,  F16C19/06 ,  F16C35/073 ,  F16C35/077 ,  G01M13/045

CPC classification number: F16C19/06 ,  F16C19/522 ,  F16C33/586 ,  F16C35/073 ,  F16C35/077 ,  G01L5/0019 ,  G01M13/045 ,  F16C2233/00

Abstract: A bearing monitoring apparatus includes a rolling bearing, multiple rolling elements, a strain gauge configured to detect strain of the outer ring or the inner ring, the strain gauge including at least two resistors, and the resistors being arranged in a same direction as an arrangement direction of the rolling elements so as to correspond to spacing between rolling elements that are next to each other. The bearing monitoring apparatus includes a first circuit configured to generate a first distorted waveform based on an output of one resistor and to generate a second distorted waveform based on an output of another resistor. The bearing monitoring apparatus includes a second circuit configured to subtract the second distorted waveform from the first distorted waveform to generate a differential waveform. The second circuit is configured to compare the differential waveform against a reference value to detect a wear state of the rolling bearing.

公开(公告)号：US20230265890A1

公开(公告)日：2023-08-24

申请号：US18168611

申请日：2023-02-14

Applicant: AKTIEBOLAGET SKF

Inventor： Andrea A. Bertolini ,  Fausto Baracca ,  Alessio Nebbia Colomba ,  Pasquale Frezza

IPC: F16C35/073

CPC classification number: F16C35/073 ,  F16C2226/16

Abstract: A bearing unit configured to be clamped on a machine shaft includes a stationary radially outer ring, a rotatable radially inner ring having a radially inner surface, a row of rolling bodies interposed between the radially outer ring and the radially inner ring, and a clamping device that includes a clamping sleeve between the radially inner ring and the machine shaft, the clamping sleeve including a threaded flange portion and a circumferential slit configured to deform and tighten around the machine shaft, and a ring nut to screw onto the threaded flange portion and exert an axial force on the radially inner ring, the radially inner surface of the radially inner ring engages the radially outer surface of the clamping sleeve.

公开(公告)号：US20190003529A1

公开(公告)日：2019-01-03

申请号：US16064363

申请日：2017-08-25

Applicant: NSK LTD.

Inventor： Tomohiro MOTODA ,  Hideyuki UYAMA

IPC: F16C33/62 ,  F16C19/06 ,  F16C33/66

CPC classification number: F16C33/62 ,  F16C19/06 ,  F16C21/00 ,  F16C33/1095 ,  F16C33/127 ,  F16C33/201 ,  F16C33/205 ,  F16C33/24 ,  F16C33/586 ,  F16C33/64 ,  F16C33/6696 ,  F16C35/07 ,  F16C35/073 ,  F16C35/077 ,  F16C2202/52 ,  F16C2202/54 ,  F16C2204/30 ,  F16C2204/46 ,  F16C2223/30

Abstract: A rolling bearing has an outer diameter surface of the outer ring which is a fitting surface with a housing and the inner diameter surface of the inner ring, which is a fitting surface with a shaft. The outer diameter surface of the outer ring or the inner diameter surface of the inner ring is coated with a bonded film containing an organic binder, a solid lubricant powder such as molybdenum disulfide powder, and a friction/wear modifier such as antimony oxide powder. According to the rolling bearing, a creep resistance is kept excellent without causing increase in cost and size and being deformed and softened.

公开(公告)号：US20180195550A1

公开(公告)日：2018-07-12

申请号：US15916700

申请日：2018-03-09

Applicant: T.K.T. Enterprises, Inc. (d/b/a Dealers Transmission Exchange)

Inventor： David Horvath

IPC: F16C3/02 ,  F16H57/04 ,  F16C35/067 ,  F16D1/02 ,  F16D1/10 ,  F16C35/073 ,  F16H57/00 ,  F16H57/021

CPC classification number: F16C3/023 ,  F16C35/067 ,  F16C35/073 ,  F16C2226/80 ,  F16D1/02 ,  F16D1/101 ,  F16D2001/103 ,  F16H57/042 ,  F16H57/0423 ,  F16H57/046 ,  F16H57/0471 ,  F16H2057/0075 ,  F16H2057/0216 ,  Y10T74/19074 ,  Y10T74/19991

Abstract: A transmission is provided including a splitter shaft having a concentric cavity defined in a distal end thereof and an outer wall surrounding the cavity. The outer wall has an increased thickness in order to reduce failure and fracturing in the outer wall area. A bearing hub adapted for supporting a larger bearing is also provided. The improved transmission may include a system for utilizing existing lubrication lines in order to lubricate a center section of the transmission. The components of the present invention may be provided as part of a kit for retrofitting an existing transmission in order to reduce failures and increase lifespan.

公开(公告)号：US09909451B2

公开(公告)日：2018-03-06

申请号：US15198776

申请日：2016-06-30

Applicant: General Electric Company

Inventor： Bruce Alan Carter ,  Ravindra Shankar Ganiger ,  Bhaskar Nanda Mondal ,  Jacob Patrick Miller ,  Sivakumar Mahesh ,  Kevin L. Kirkeng ,  Veeraraju Vanapalli

IPC: F01D25/16 ,  F16C35/073 ,  F16C33/30 ,  F02C3/04 ,  F02C7/06 ,  F01D5/02 ,  F01D21/04 ,  F16C27/04 ,  F16C19/16

CPC classification number: F01D25/164 ,  F01D5/027 ,  F01D21/045 ,  F02C3/04 ,  F02C7/06 ,  F05D2220/32 ,  F05D2240/24 ,  F05D2240/52 ,  F05D2240/60 ,  F16C19/16 ,  F16C27/04 ,  F16C33/30 ,  F16C35/073 ,  F16C2360/23 ,  Y02T50/671

Abstract: In one aspect, a bearing assembly for supporting a rotor shaft relative to a support structure of a gas turbine engine may generally include a bearing including an outer race and an inner race, an outer bearing housing configured to extend radially between the outer race of the bearing and the support structure of the gas turbine engine and an inner bearing support configured to extend radially between the inner race of the bearing and the rotor shaft. In addition, the outer bearing housing and the inner bearing support each include at least one radially extending spring arm such that the outer bearing housing and the inner bearing support collectively form two springs coupled in series between the support structure and the rotor shaft.

公开(公告)号：US20170370789A1

公开(公告)日：2017-12-28

申请号：US15538728

申请日：2016-01-15

Applicant: Robert Bosch GmbH

Inventor： Frank Klopf ,  Simon Schneider

IPC: G01L5/00 ,  G01L1/18 ,  G01L3/10 ,  G01L9/00 ,  G01P3/44 ,  F16C19/52 ,  F16C35/073

CPC classification number: G01L5/0019 ,  F16C19/522 ,  F16C35/073 ,  G01L1/18 ,  G01L3/108 ,  G01L9/0052 ,  G01P3/443

Abstract: A sensor arrangement for indirect detection of a torque of a rotatably mounted shaft includes a sensor with at least one sensor element arranged in the surroundings of a bearing of the shaft. The bearing is linked to a supporting structure. The sensor element is configured to detect a proportion of a bearing force acting in a predetermined direction. The torque of the shaft is configured to be calculated from the acting proportion of the bearing force. The sensor has at least one sensor body with an outer contour that supports a corresponding sensor element and is pressed into a receiving hole. The sensor element has a predetermined distance and a predetermined angle to the bearing.

公开(公告)号：US09719560B2

公开(公告)日：2017-08-01

申请号：US14781467

申请日：2014-02-27

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Stephan Dreizler ,  Jorg Bauer

IPC: F16F7/10 ,  F16C33/58 ,  F16C35/073 ,  F16C41/00 ,  F16M11/08 ,  F16M11/20 ,  F16M13/02 ,  F16C19/24 ,  F16D55/02

CPC classification number: F16C33/585 ,  F16C19/24 ,  F16C35/073 ,  F16C41/001 ,  F16C2226/60 ,  F16C2226/62 ,  F16D55/02 ,  F16M11/08 ,  F16M11/2014 ,  F16M13/027 ,  F16M2200/024

Abstract: A rotary joint which, in order to limit the mutual rotation of the outer bearing ring (2) with respect to the inner bearing ring (2), is provided with a raceway (11), which is limited by one or two stops (14) and in which a projection connected to the outer bearing ring engages. In order to ensure that a rotation greater than 360° is possible, the raceway is of helical design.

公开(公告)号：US09702399B2

公开(公告)日：2017-07-11

申请号：US14636214

申请日：2015-03-03

Applicant: Benoît Arnault ,  Laurent Varnoux

Inventor： Benoît Arnault ,  Laurent Varnoux

IPC: F16C13/00 ,  B29C45/14 ,  F16C35/073 ,  F16H7/20 ,  F16H7/12 ,  F16C23/10 ,  F16H7/08 ,  F16B41/00 ,  F16C19/08

CPC classification number: F16C13/006 ,  B29C45/1459 ,  F16B41/002 ,  F16C19/08 ,  F16C23/10 ,  F16C35/073 ,  F16C2361/63 ,  F16H7/1245 ,  F16H7/20 ,  F16H2007/0842 ,  F16H2007/0865 ,  F16H2007/088 ,  Y10T29/49549

Abstract: A chain or belt tensioning roller or winder device having a rolling bearing, the rolling bearing comprising an inner ring, an outer ring and at least one row of rolling elements mounted between the rings. The pulley is overmolded onto the outer ring and with a fixing screw axially immobilized with respect to the rolling bearing. The device comprises a sleeve overmolded inside the bore of the inner ring and provided with a through-bore for mounting the fixing screw. The sleeve is provided with means of axially retaining the fixing screw inside the through-bore of the sleeve.

公开(公告)号：US09694627B2

公开(公告)日：2017-07-04

申请号：US14753178

申请日：2015-06-29

Applicant: Aktiebolaget SKF

Inventor： Domenico Bosco ,  Laura Sguotti

IPC: B60B27/00 ,  F16C35/067 ,  F16C19/28

CPC classification number: B60B27/0005 ,  B60B27/0042 ,  B60B27/0078 ,  B60B2360/10 ,  B60B2380/12 ,  B60B2380/73 ,  B60B2900/111 ,  B60B2900/114 ,  F16C19/16 ,  F16C19/184 ,  F16C19/28 ,  F16C23/082 ,  F16C33/585 ,  F16C35/067 ,  F16C35/073 ,  F16C2326/02

Abstract: A hub-bearing assembly provided with a bearing unit and a rotatable rotor-hub. The bearing unit includes a stationary radially outer ring, a couple of rotatable radially inner rings, and a double row of rolling elements, wherein the rolling elements are interposed between the outer ring and the inner rings, whose centers are located along a first circle having a radius, with respect to a symmetry axis of the assembly. The rotor-hub is made of a light alloy. A tubular portion is assembled on top of the radially inner rings. The tubular portion is steadily fixed a flange portion, axially external and includes a plurality of fixing holes. Axes of the fixing holes are located along a second circle defined by a radius respective to the symmetry axis of the assembly. The radius of the first circle (rolling elements) is greater than the radius of the second circle (fixing holes).

公开(公告)号：US20170158220A1

公开(公告)日：2017-06-08

申请号：US15322518

申请日：2015-06-30

Applicant: TRW Limited

Inventor： Michael Appleyard

IPC: B62D1/185 ,  F16C33/60 ,  F16C27/04 ,  F16C19/26 ,  F16C23/08

CPC classification number: B62D1/185 ,  F16C19/06 ,  F16C19/16 ,  F16C19/26 ,  F16C23/06 ,  F16C23/08 ,  F16C27/04 ,  F16C31/04 ,  F16C33/60 ,  F16C35/073 ,  F16C2326/24

Abstract: A telescopic steering column assembly comprises an upper and a lower shroud portion able to move relatively during telescopic adjustment, a telescopic steering shaft that passes through and is supported by the shroud portions through at least one support bearing assembly that acts between an upper portion of the telescopic steering shaft and a lower portion of the shroud that move relative to one another axially during telescopic adjustment. The at least one support bearing assembly comprises a first bearing race which is separate from the shroud portions and the steering shaft, a resilient spacer that applies a biasing force that is directed in a radial direction from the axis of the shaft and that is located between the first race and an adjacent face of one of the lower shroud portion and the upper shaft portion; a set of bearings, and a cage that locates the bearings relative to the first bearing race. The bearings bear onto a second bearing race that is defined by a surface of the other one of the lower shroud portion and the upper shaft portion, the second bearing face permitting the bearings to slide or roll in the direction of adjustment of the steering column assembly when it is adjusted for reach.