CN113107968A - 具有导电介质的轴承 - Google Patents

具有导电介质的轴承 Download PDF

Info

Publication number
CN113107968A
CN113107968A CN202110012783.5A CN202110012783A CN113107968A CN 113107968 A CN113107968 A CN 113107968A CN 202110012783 A CN202110012783 A CN 202110012783A CN 113107968 A CN113107968 A CN 113107968A
Authority
CN
China
Prior art keywords
bearing
bearing assembly
shaft
wall portion
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110012783.5A
Other languages
English (en)
Inventor
里亚德·鲍赫
伊戈尔·多雷斯庭
马蒂厄·休伯特
卡尔·普里斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF AB
Original Assignee
SKF AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SKF AB filed Critical SKF AB
Publication of CN113107968A publication Critical patent/CN113107968A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
    • F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
    • F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7859—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element
    • F16C33/7863—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element mounted to the inner race, e.g. a flinger to use centrifugal effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/002—Conductive elements, e.g. to prevent static electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/30—Electric properties; Magnetic properties
    • F16C2202/32—Conductivity
    • F16C2202/34—Superconductivity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2210/00—Fluids
    • F16C2210/02—Fluids defined by their properties

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

一种具有导电介质的轴承组合体，能够装配在轴上，包含有轴承单元，所述轴承单元包含径向内侧轴承圈，所述径向内侧轴承圈包含径向内侧滚道，所述径向内侧轴承圈能够与所述轴一起旋转。所述轴承单元进一步包含径向外侧轴承圈和多个滚动体：所述径向外侧轴承圈包含径向外侧滚道，所述径向外侧轴承圈相对于所述轴是静止的；所述多个滚动体支撑在径向内侧轴承圈的径向内侧滚道与径向外侧轴承圈的径向外侧滚道之间，能够进行滚动。环形腔体被设置为毗邻所述的轴承单元，导电介质设置在所述腔体中。

Description

具有导电介质的轴承
技术领域
本发明总体涉及一种轴承技术，尽管并不排他，但尤其涉及包含导电介质的轴承组合体(/轴承组件)(bearing assembly)。
背景技术
滚动轴承在电机中的使用会导致电流的通过。来自逆变器的脉冲会在滚动轴承的轴承圈之间引发电动势。电流会引起滚动体和轴承滚道源于火花或电蚀(electricalerosion)的持续性电损伤。电蚀可能会引起接触表面源于电流通过所导致的损伤，比如材料脱落。结果，轴承可能会严重提前失效，从而引起整个机器的失效。这导致维修费用和故障成本。
已知的解决方案包括混合轴承(hybrid bearings)、涂覆轴承(coated bearings)和绝缘衬套(insulated bushing)。此外，经常使用的还有独立的接地环，例如，弹簧加载石墨刷和碳纤维环之类的波接地系统(wave grounding systems)。所述接地环用来保护滚动轴承不受损害。这些都是独立部件，经常通过夹压或者旋拧的方式附着在壳体上。这些部件与石墨刷一起工作，仅部分为全寿命设计。部分由于在机器中受到污染以致失效，这些系统总是需要额外的装配工作、空间和成本。石墨刷增加摩擦力，并且在性能下降时加剧污染，同时也限制速度。
发明内容
本发明通过根据技术方案1所述的轴承组合体实现。
附图说明
图1是一种示范性实施方式下轴承组合体和轴的截面图；
图2是另外一种示范性实施方式下轴承组合体和轴的截面图；
图3是另外一种示范性实施方式下轴承组合体的截面图；
图4是另外一种示范性实施方式下轴承组合体的截面图；
图5是另外一种示范性实施方式下轴承组合体的截面图，其中所述轴承组合体包含盘形层状刷(disk-shaped laminar brush)。
具体实施方式
本发明披露的轴承组合体适用于轴承单元，尤其是滚动轴承。文中披露的示范性实施方式尽管并不排他，但尤其适用于诸如汽车牵引电机之类的电机轴承单元。所述轴承单元设置在轴上。
文中披露的示范性实施方式减小摩擦颗粒和摩擦力，从而延长轴承单元的寿命。由于摩擦力的降低，示范性实施方式也可以以更高的速度运行。
现在仅通过非限制性示例，参照转轴上的轴承组合体来描述示范性实施方式的发明构思。示范性实施方式在转动部件和非转动部件之间创设导电性。
参照图1，示范性实施方式中的轴承组合体总体以数字10指代，包含装配在可转动轴14上的轴承单元12。在本说明书和权利要求书的全部表述中，诸如“径向”和“轴向”之类的表征位置和朝向的词汇和表述应当被理解为参照轴承单元12和轴14的中心旋转轴线X(图中未显示)。附图通过示例的方式展示结构细节。
轴承单元12具有径向内侧轴承圈(以下简称“轴承内圈”)16，装配在轴14上，并能够与轴14一起旋转。轴承单元12进一步包含径向外侧轴承圈(以下简称“轴承外圈”)18。轴承外圈18相对于轴承内圈16和轴14是静止的(指外圈18不随内圈18和轴14一起转动)。轴承内圈16包含位于轴承径向内侧的滚道(以下简称“内圈滚道”)20，轴承外圈18包含位于轴承径向外侧的滚道(以下简称“外圈滚道”)22。多个滚动体(/滚动元件)(rolling elements)24支撑在内圈滚道20和外圈滚道22之间，能够进行滚动。滚动体24可以是不锈钢球或者类似的部件。第一密封件26和第二密封件27固定在轴承内圈16上，或者与轴承内圈16形成为一体，并且在内圈滚道20和外圈滚道22的两侧，从轴承内圈16向轴承外圈18沿径向向外延伸。作为另外一种选择，第一密封件26和第二密封件(/密封构件)(seal member)27也可以固定在轴承外圈18上，或者与轴承外圈18形成为一体，从轴承外圈18朝向轴承内圈16沿径向向内延伸。
图1所示的具体实施方式进一步包含环形盒28，该环形盒可装配在轴14上，毗邻轴承单元12。盒28具有内腔，腔体由盒的外壳30构成。外壳30相对于轴14是静止的(指外壳30不随轴14一起转动)。外壳30可包含第一主体部32和第二主体部38。这两个主体部32和38在设计上通过可开启的锁定部件31彼此衔接在一起，所述锁定部件31使第一主体部32和第二主体部38能够以可释放的方式彼此连接在一起。第一主体部32具有第一径向壁部分34和第一轴向壁部分36，第二主体部38具有第二径向壁部分40和第二轴向壁部分42。第二径向壁部分40可在设计上具有适配部44，该适配部44被构建为能够压装(/压配)(press fit)在轴承外圈18上，使得与轴承外圈18一起处于静止。包含轴承单元12和盒28的整个轴承组合体(/整个轴承组件)20可以在外壳30被压装在轴承组合体10上以后作为一个整体压装在轴14上，抑或分别被压装在轴14上。外壳30可由任何适宜材料制成，包括不锈钢、钢和铝之类的导电材料。
盒28进一步包含设置在外壳30中的环形抛油环(flinger ring)46。抛油环46被构建为具有L型截面，具有轴向抛油环部分48和径向抛油环部分50。轴向抛油环部分48在设计上被压装在轴14上，从而使抛油环46能够与轴14一起旋转。抛油环46进一步具有两个密封唇52，分别从径向抛油环部分50的相对两侧沿一定的角度延伸。密封唇52可以由任何适宜的材料，例如硫化橡胶(vulcanized rubber)制成，并通过二次成型(overmolding)或者粘合的方式附着在径向抛油环部分50上。取决于性能指标，密封唇52也可以由任何适宜的聚合物制成。例如，当用于较低性能(低速/低温125℃)时，密封唇52可以由丁腈橡胶(nitrilrubber)和氢化丁腈橡胶(hydronated nitril rubber)制成；当用于高性能(高速/高温150℃)时，密封唇52可由含氟弹性体(fluoroelastomers)或者碳氟化合物(fluorocarbons)制成；当用于非常高性能(非常高速/高温175℃)时，密封唇52可由聚四氟乙烯(PTFE)制成。
盒28在设计上用于容纳导电介质58。导电介质58可以是导电膏、流体、油脂、颗粒、凝胶或者其他介质。导电介质58可以进一步是离子液体、导电脂肪或者油基基质(oilbased matrix)。导电材料可以是较差的润滑剂，因为良好的润滑剂在典型情况下具有低导电性。因此，可通过使用通体散布(dispersed throughout)有导电颗粒的非导电材料来实现一种平衡。导电介质58被密封唇52保持在盒28内，处于密封唇52的上方。
图2显示另外一种示范性实施方式的轴承组合体110。出于简洁之目的，备选实施方式中的类似部件将被赋予与之前实施方式中相同的附图标记，不过前方附以100的倍数。盒128与轴承单元112形成为一体。盒128包含盒的外壳130，相对于轴114是静止的(不随轴114一起旋转)。外壳130可包含第一主体部132和第二主体部138。第一主体部132具有第一径向壁部分134和第一轴向壁部分136，第二主体部138具有第二径向壁部分140和第二轴向壁部分142。第一径向壁部分134可被构建为具有适配部145，在设计上被压装在轴承外圈118上，从而与轴承外圈118保持静止。整个轴承组合体110可作为一个整体压装在轴114上。第一密封件126固定在轴承内圈116上，或者与轴承内圈116形成为一体。第二密封件未被提供。与之前一样，盒128进一步包含环形抛油圈146、密封唇152和导电介质158。
图3显示另外一种实施方式下装配在轴214上的轴承组合体210。在该实施方式下，轴承组合体210包含与轴承单元212形成为一体的密封腔体228。其中，所述盒被密封227从轴承单元212处隔开。密封腔体228是至少部分充有导电介质258的环形腔室。
图4显示另外一种示范性实施方式下的轴承组合体310。轴承组合体310包含与轴承单元312形成为一体的密封腔体328，所述密封腔体328是一个至少部分充有导电介质358的环形腔室。密封腔体328进一步包含能够与轴314一同旋转的内部环形圈347。
在图3和4所示的具体实施方式中，由于没有额外部件需要空间，故轴承组合体210和310可以在紧凑空间中使用。密封腔228和328可用于密封保持导电介质258和358。额外的密封(/密封件)(seal)229和329可被用于覆盖密封腔228和328的内壁231和331。额外的密封229和329还可包含铜、铝或银之类的导电介质，用于提供额外的导电性。
图5显示另外一种示范性实施方式下的轴承组合体410。轴承组合体410包含与轴承单元412形成为一体的密封腔体428。密封腔体428被密封427从轴承单元412处隔开，可包含之前图3和4描绘的额外的密封。密封腔体428中设置有盘形装置(disk-shaped device)，例如，类似于接地环之类的盘形层状接地刷(laminar grounding brush)460，能够与轴414一同旋转。接地刷460可以包含夹持在导电环464之间的导电刷细丝(conductive brushfilaments)462，可以是标题为“具有集成接地刷的轴承密封”的美国专利No.9,790,995所披露的那种。该美国专利通过援引其内容已包含于本文当中。作为另外一种选择，密封腔体428可被充以铜丝棉或银丝棉之类的金属棉，用以确保轴承单元412的转动部分和静止部分之间形成导电连接。为增加轴承单元的导电性，轴承单元的旋转部分和静止部件还可以被覆以导电材料，例如银。
发明构思进一步优选和/或特别具有优势的示范性实施方式将跟据随附从属权利要求中表明的区别特征加以限定。

Claims (15)

1.一种能够装配在轴上的轴承组合体，包括：
轴承单元，所述轴承单元包括：
径向内侧轴承圈，所述径向内侧轴承圈包括径向内侧滚道，所述径向内侧轴承圈能够与所述轴一起旋转；
径向外侧轴承圈，所述径向外侧轴承圈包括径向外侧滚道，所述径向外侧轴承圈相对于所述轴是静止的；和
多个滚动体，被支撑使得在径向内侧轴承圈的径向内侧滚道与径向外侧轴承圈的径向外侧滚道之间滚动；
环形腔体，被构建为毗邻所述轴承单元；
导电介质，设置在所述腔体之中。
2.根据权利要求1所述的轴承组合体，其特征在于：所述腔体由环形盒的外壳构成，所述外壳相对于所述轴是静止的。
3.根据权利要求2所述的轴承组合体，其特征在于：所述环形盒被构建为压配于所述轴承单元。
4.根据权利要求2所述的轴承组合体，其特征在于：所述环形盒包括第一主体部和被构建为附着于所述第一主体部的第二主体部。
5.根据权利要求4所述的轴承组合体，其特征在于：所述第一主体部具有第一径向壁部分和第一轴向壁部分，所述第二主体部具有第二径向壁部分和第二轴向壁部分。
6.根据权利要求5所述的轴承组合体，其特征在于：所述第一径向壁部分和所述第二径向壁部分其中之一被构建为与所述轴承单元压配。
7.根据权利要求5所述的轴承组合体，其特征在于：所述第一轴向壁部分和所述第二轴向壁部分其中之一被构建为与所述轴承单元压配。
8.根据权利要求2所述的轴承组合体，其特征在于：所述轴承组合体还包括抛油环，所述抛油环设置在所述外壳中，被构建为与所述轴一起旋转。
9.根据权利要求8所述的轴承组合体，其特征在于：所述抛油环包括轴向抛油环部分和径向抛油环部分，其中所述轴向抛油环部分被构建为被压配在所述轴上。
10.根据权利要求9所述的轴承组合体，其特征在于：所述轴承组合体还包括设置在所述径向抛油环部分上的至少一个密封唇。
11.根据权利要求1所述的轴承组合体，其特征在于：所述轴承组合体还包括设置在所述腔体与所述轴承单元之间的密封件。
12.根据权利要求11所述的轴承组合体，其特征在于：所述腔体具有内壁，所述内壁上覆盖有导电密封。
13.根据权利要求1所述的轴承组合体，其特征在于：所述导电介质选自导电膏、流体、油脂、颗粒、离子液体、脂肪以及油基基质。
14.根据权利要求1所述的轴承组合体，其特征在于：所述导电介质由通体分布有导电材料的非导电材料形成。
15.根据权利要求1所述的轴承组合体，其特征在于：所处导电介质由设置在所述腔体中并且被构造为与所述轴一起旋转的接地刷的导电刷细丝形成。
CN202110012783.5A 2020-01-10 2021-01-06 具有导电介质的轴承 Pending CN113107968A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/739,808 US11035413B1 (en) 2020-01-10 2020-01-10 Bearing with conductive medium
US16/739,808 2020-01-10

Publications (1)

Publication Number Publication Date
CN113107968A true CN113107968A (zh) 2021-07-13

Family

ID=76321036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110012783.5A Pending CN113107968A (zh) 2020-01-10 2021-01-06 具有导电介质的轴承

Country Status (4)

Country Link
US (1) US11035413B1 (zh)
CN (1) CN113107968A (zh)
DE (1) DE102020134537A1 (zh)
FR (1) FR3106171B1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD937331S1 (en) * 2018-12-19 2021-11-30 Aktiebolaget Skf Housing for ball bearings

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1293461B1 (it) 1997-07-17 1999-03-01 Skf Ind Spa Cuscinetto di rotolamento con dispositivo di tenuta e di scarico di correnti elettrostatiche.
US6755572B1 (en) * 1999-11-15 2004-06-29 Mitsubishi Denki Kabushiki Kaisha Antifriction bearing
US6589918B2 (en) 2000-06-22 2003-07-08 Nsk Ltd. Conductive grease and rolling apparatus packed with the same
FR2913543A1 (fr) * 2007-03-08 2008-09-12 Skf Ab Module conduteur de courant et alternateur
US9790995B2 (en) 2015-10-19 2017-10-17 Schaeffler Technologies AG & Co. KG Bearing seal with integrated grounding brush
US10006393B2 (en) 2016-01-22 2018-06-26 GM Global Technology Operations LLC Methods and systems for determining and reporting a remaining useful life of an air filter
DE102018115732A1 (de) * 2018-06-29 2020-01-02 Schaeffler Technologies AG & Co. KG Wälzlager mit integrierter Stromableitfunktion
US10578164B1 (en) * 2018-09-26 2020-03-03 Schaeffleer Technologies Ag & Co. Kg Bearing having integrated soft connected grounding device

Also Published As

Publication number Publication date
FR3106171B1 (fr) 2023-04-21
DE102020134537A1 (de) 2021-07-15
US11035413B1 (en) 2021-06-15
FR3106171A1 (fr) 2021-07-16

Similar Documents

Publication Publication Date Title
US5139425A (en) Rolling bearing with rotating electrical contacts
US8183727B2 (en) Grounding mechanism for electric motor
CN103978837B (zh) 车轴轴承系统
EP3048340B1 (en) Sealing arrangement
US6755572B1 (en) Antifriction bearing
US3997805A (en) Resilient electric motor bearing seal
US20210003221A1 (en) Mechanical seal
JP2014240676A (ja) シール付車輪支持用軸受ユニット
US10578164B1 (en) Bearing having integrated soft connected grounding device
US10907689B2 (en) Heavy duty wheel seal with dry running resistance
CN113107968A (zh) 具有导电介质的轴承
JP2001153145A (ja) 密封形転がり軸受
WO2023238392A1 (ja) 転がり軸受
CN111720446B (zh) 一种密封型推力球轴承
JP2009162272A (ja) 転がり軸受及びブラシレスモータ
CN218494032U (zh) 滚动轴承
CN111828485A (zh) 密封装置和轴承组件
CN113028063A (zh) 密封装置和轴承组件
JP2020076427A (ja) 転がり軸受装置
JP2005083442A (ja) 通電軸受
CN112805482A (zh) 具有密封组件的滚动轴承和具有该滚动轴承的水泵
CN113775653A (zh) 密封装置和轴承组件
US20170125960A1 (en) Electrical grounding of bearing seal
US20240072618A1 (en) Electrical shunt device
EP4379242A1 (en) Sealing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination