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公开(公告)号:US11905990B2
公开(公告)日:2024-02-20
申请号:US17627479
申请日:2020-05-07
申请人: THK Co., Ltd.
发明人: Xingjia Yu , Yue Liu , Tomoyuki Aida
CPC分类号: F16C29/0609 , F16C29/064 , F16C33/6651 , F16C33/6681
摘要: A motion guiding device includes a supporting body and a moving body. The moving body includes a moving body main body, a cover body and a circulation component. The cover body includes a first lubrication groove. The motion guiding device is further provided with a lubrication path component, the lubrication path component including a second lubrication groove having a cross-sectional area less than that of the first lubrication groove. When a lubricating oil is used as the lubricant, the lubricant is supplied by a lubricating oil lubrication path formed by the first lubrication groove and the second lubrication groove. In this way, in the motion guiding device, the lubrication path may be widened when the lubricating grease is used to lubricate, while the lubrication path may be narrowed when the lubricating oil is used to lubricate, so that a good lubrication may be easily achieved.
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公开(公告)号:US20190055988A1
公开(公告)日:2019-02-21
申请号:US15681830
申请日:2017-08-21
发明人: Edward J. Wey
CPC分类号: F16C33/6651 , F16C19/463 , F16C33/4605 , F16C2240/44
摘要: A roller-cage assembly that provides both improved lubrication and reduced contact surface of the cage is disclosed. The roller-cage assembly includes a plurality of rolling elements and a cage. The cage includes a first radial flange, a second radial flange, and a plurality of crossbars extending therebetween that define a plurality of rolling element pockets. The plurality of rolling elements are located in at least some of the plurality of rolling element pockets. The plurality of crossbars each include lateral surfaces that support the plurality of rolling elements. The cage includes a radial support surface that includes at least one recess. The at least one recess serves as a lubrication reservoir as well as provides a reduction in surface area of the radial support surface against an associated support element, such as a housing, shaft, or bearing ring.
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公开(公告)号:US10060479B2
公开(公告)日:2018-08-28
申请号:US15305383
申请日:2015-05-13
申请人: The Timken Company
发明人: Xiaolan Ai , Ryan D. Evans , Luc Houpert
CPC分类号: F16C33/664 , B23P9/02 , F16C19/00 , F16C19/06 , F16C19/163 , F16C33/585 , F16C33/64 , F16C33/6648 , F16C33/6651 , F16C33/6681 , F16C2220/70 , F16C2223/06 , F16C2240/54
摘要: A bearing assembly having an inner race ring (14) that defines an inner raceway and an outer race ring that defines an outer raceway on which the plurality of rolling elements (22) roll. The bearing raceways are machined using surface finishing operations to create preferred surface profiles and textures for improving lubrication performance. The profile of the raceway is initially created using a first grinding process to form a rough surface profile including a rough central band (34) and rough recessed side bands (38). A second grinding process is used to smooth the central band. This raceway surface profile increases lubrication performance.
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公开(公告)号:US20180128310A1
公开(公告)日:2018-05-10
申请号:US15867320
申请日:2018-01-10
申请人: SHINE YING CO., LTD
发明人: WEN-CHEN LAI
CPC分类号: F16C19/06 , F16C19/10 , F16C19/507 , F16C33/3818 , F16C33/3887 , F16C33/583 , F16C33/605 , F16C33/6614 , F16C33/6651 , F16C33/6659 , F16C2300/12 , F16C2300/22 , F16C2380/26
摘要: A ball bearing assembly includes at least two units being axially coupled together to allow at least one set of plural spherical balls adapted to be installed between at least one pair of two adjacent units of the at least two units.
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公开(公告)号:US09964150B2
公开(公告)日:2018-05-08
申请号:US14433075
申请日:2013-09-20
申请人: AKTIEBOLAG SKF
发明人: Mikael R Karlsson , Håkan Lindgren
CPC分类号: F16C33/467 , F16C19/38 , F16C23/086 , F16C33/4676 , F16C33/48 , F16C33/541 , F16C33/543 , F16C33/547 , F16C33/6614 , F16C33/6629 , F16C33/6637 , F16C33/6651 , F16C33/6681
摘要: A method for lubricating a rolling element bearing, the method comprising a step of providing a bearing cage for retaining rolling elements when the bearing cage is in use, the bearing cage having at least one first ring structure to which at least one first cage bar is connected. The at least one first cage bar is constructed so that a diameter of the bearing cage is largest at one of a point or a region along the length of the at least one first cage bar so as to improve lubricant flow towards the rotational center of rolling elements when the bearing cage is in use.
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公开(公告)号:US20170370406A1
公开(公告)日:2017-12-28
申请号:US15193077
申请日:2016-06-26
申请人: ATEC Corporation
发明人: Anh Tran
CPC分类号: F16C19/10 , F16C33/3806 , F16C33/3818 , F16C33/3887 , F16C33/445 , F16C33/6622 , F16C33/6651 , F16C33/6659 , F16C33/6688 , F16C33/6696 , F16C2208/02 , F16C2208/04 , F16C2208/32 , F16C2223/70 , F16C2300/14 , Y02T10/865
摘要: A thrust ball bearing retainer a large size of bearings with the bearing raceways being modified using a surface enhancement process such as hard anodizing coating, which provides low friction coefficient and initial wear rate. The retainer material is selected to be molded, synthetic resin, self-lubricated material reinforced with carbon fiber, molybdenum disulfide, and PTPE. This lubrication system eliminates the thermal induced bearing torque effect due to viscosity. The retainer contains multiply segments with an inner race guided configuration, an alternative ball pocket cross section design and a ball pocket slotted configuration (1) to reduce the thermal induced effects due to coefficient of thermal expansion mismatch between the raceway and the retainer material (2) to enhance the producibility of the retainer due to out-of-round, out-of-flatness and torsional wrap, and (3) to reduce the manufacturing cost. The pocket design with an oval cross section instead of a circular cross section also reduces the localized thermal induced effect which would otherwise result in a pinching condition between the ball and the retainer. The alternative slotted retainer pocket design is used to increase the compliance between ball/pocket interfaces, which helps to reduce the dynamic induced effects. The ends of the retainer segments are designed to reduce the interactive transferring, circumferential force between two adjacent segments.
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公开(公告)号:US09850948B2
公开(公告)日:2017-12-26
申请号:US15105859
申请日:2014-12-10
申请人: AKTIEBOLAGET SKF
发明人: Sabine Hofmann , Baozhu Liang
CPC分类号: F16C33/4676 , F16C33/4617 , F16C33/51 , F16C33/6614 , F16C33/6629 , F16C33/6651 , F16C2220/04
摘要: A rolling-element bearing cage or cage element includes at least one axial bridge region having first and second guide surfaces, the first guide surface and the second guide surface each have a recessed region axially between first and second non-recessed regions, at least one V-shaped receiving space in a radial outer surface of the rolling-element bearing cage or cage element configured to receive lubricant, and first and second fluid channels extending from the at least one receiving space to the recessed regions of the first and second guide surfaces. The fluid channels have rectangular cross sections, are about as wide as a width of the recessed regions, and are angled at an acute angle to a radial direction, and the receiving space is approximately as wide as the recessed regions.
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公开(公告)号:US20170363146A1
公开(公告)日:2017-12-21
申请号:US15692028
申请日:2017-08-31
申请人: NSK LTD.
CPC分类号: F16C33/4605 , F16C19/364 , F16C33/4635 , F16C33/4676 , F16C33/583 , F16C33/585 , F16C33/586 , F16C33/6614 , F16C33/6651 , F16C43/065 , F16C2240/30 , F16C2240/34 , F16C2240/70 , F16C2361/61
摘要: A tapered roller bearing (1) is includes an outer ring (2) having an outer ring raceway surface (2a) on the inner peripheral surface thereof, an inner ring (3) having an inner ring raceway surface (3a) on the outer peripheral surface thereof, and a plurality of tapered rollers (4) arranged in a rollable manner between the outer ring raceway surface (2a) and the inner ring raceway surface (3a). A large flange (3b) is formed on an end portion of the inner ring (3) on a large-diameter side of the inner ring, and the inner ring raceway surface (3a) continuously extends to the end face (3c) of the inner ring (3) on a small-diameter side of the inner ring. The contact angle (α) is 37°30′ to 50°. In this manner, the tapered roller bearing having high moment rigidity and long life can be provided.
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公开(公告)号:US20170356497A1
公开(公告)日:2017-12-14
申请号:US15180189
申请日:2016-06-13
申请人: Caterpillar Inc.
发明人: Ryan Lozier , James R. Carlberg
CPC分类号: F16C33/6648 , F16C19/26 , F16C33/427 , F16C33/583 , F16C33/585 , F16C33/64 , F16C33/6611 , F16C33/6614 , F16C33/6651 , F16C2220/24
摘要: Disclosed is a bearing race comprising a surface having a plurality of pores formed therein. A lubricant is provided in the pores. The race has a body having a porous volume contiguous with the surface. The surface includes a load bearing zone configured to be in contact with a rolling element of a bearing, the pores being distributed on the surface to provide the lubricant to the load bearing zone.
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公开(公告)号:US20170314616A1
公开(公告)日:2017-11-02
申请号:US15519969
申请日:2015-05-29
发明人: Yoshitomo NODA , Masaki TOJO
CPC分类号: F16C27/045 , F02B39/14 , F16C19/184 , F16C33/605 , F16C33/664 , F16C33/6651 , F16C33/6674 , F16C33/6681 , F16C2226/60 , F16C2360/24
摘要: A turbocharger comprises: a rolling bearing provided with a plurality of rolling elements arranged between a raceway formed on an inner ring and a raceway formed on an outer ring; and a housing for holding the outer ring. The housing is provided with: a first dam for restricting the outflow of a lubricant through a first discharge passage for discharging the lubricant from the outer ring; and a second dam for restricting the outflow of the lubricant through a second discharge passage for discharging the lubricant from an opening formed so as to be in communication with an axially intermediate portion of the outer ring and with a peripheral wall of a space.
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