JPH0614548U - Energized rolling bearing - Google Patents
Energized rolling bearingInfo
- Publication number
- JPH0614548U JPH0614548U JP059689U JP5968992U JPH0614548U JP H0614548 U JPH0614548 U JP H0614548U JP 059689 U JP059689 U JP 059689U JP 5968992 U JP5968992 U JP 5968992U JP H0614548 U JPH0614548 U JP H0614548U
- Authority
- JP
- Japan
- Prior art keywords
- current
- carrying
- cage
- ring
- outer 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
Links
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
- 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
- F16C33/7893—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a cage or integral therewith
-
- 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
- F16C33/38—Ball cages
-
- 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
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
(57)【要約】
【目的】 軸受回転数の増加に伴う通電材接触部の滑り
速度の増加を緩和する。
【構成】 保持器３の幅面にリング状の保持器通電板６
を設け、これに摺接する内輪通電材７および外輪通電材
８を内輪１および外輪２に各々取付ける。内輪通電材７
および外輪通電材８はシールを兼用するリング状のもの
であり、リップ部７ａ，８ａの弾性で保持器通電板６に
押し付け状態に接する。これら内輪通電材７および外輪
通電材８の摺接部の滑り速度は、保持器３と内輪１また
は外輪２との相対速度となるため、内外輪間に直接に摺
接させるものに比べて遅くなる。
(57) [Abstract] [Purpose] To mitigate the increase in the sliding speed of the current-carrying material contact part due to the increase in the bearing rotation speed. [Structure] The cage-shaped energizing plate 6 in a ring shape on the width surface of the cage 3.
The inner ring current-carrying material 7 and the outer ring current-carrying material 8 which are slidably contacted thereto are attached to the inner ring 1 and the outer ring 2, respectively. Inner ring current-carrying material 7
The outer ring current-carrying material 8 is a ring-shaped material that also serves as a seal, and is pressed against the cage current-carrying plate 6 by the elasticity of the lip portions 7a and 8a. Since the sliding speed of the sliding contact portion between the inner ring current-carrying material 7 and the outer wheel current-carrying material 8 is the relative speed between the cage 3 and the inner ring 1 or the outer ring 2, it is slower than that in the case of directly sliding contact between the inner and outer rings. Become.
Description
【０００１】[0001]
この考案は、通電性を必要とされる箇所あるいは電食の発生する恐れのある箇 所に使用される通電転がり軸受に関する。 The present invention relates to an electrically-conductive rolling bearing used in a place where electrical conductivity is required or a place where electrolytic corrosion may occur.
【０００２】[0002]
複写機、レーザプリンタ、その他の事務機等において、軸受を介して通電し、 回転軸に電流の供給や電圧の印加を行うことが要求されることがある。また、車 両用軸受等では、静電気の発生や周辺電気回路からの漏れ電流によって内外輪間 に電位差が生じ、転動体を介して電流が流れることがある。この場合に、その大 きな接触抵抗や放電のために転動体表面に電食が生じることがある。 In copiers, laser printers, and other office machines, it is sometimes required to energize through a bearing to supply current and voltage to the rotating shaft. Also, in vehicle bearings, etc., a potential difference may occur between the inner and outer rings due to the generation of static electricity or leakage current from the peripheral electric circuit, and current may flow through the rolling elements. In this case, electrolytic corrosion may occur on the rolling element surface due to the large contact resistance and discharge.
【０００３】 このような問題に対処するため、内外輪間に低電気抵抗で通電を行うようにし た通電軸受が種々提案されている（例えば実開昭６１−９３６２８号公報、実開 昭平２−１１０７１７号公報）。これらの通電軸受は、いずれも内輪および外輪 の一方に通電シールまたは通電線等の通電材を取付け、他方に摺接させるもので ある。In order to deal with such a problem, various current-carrying bearings have been proposed in which power is supplied between the inner and outer rings with low electric resistance (for example, Japanese Utility Model Laid-Open No. 61-93628 and Shohei 2-). No. 110717). In each of these current-carrying bearings, a current-carrying material such as a current-carrying seal or a current-carrying wire is attached to one of the inner ring and the outer ring, and is brought into sliding contact with the other.
【０００４】[0004]
しかし、このように内外輪の一方に通電材を取付け、他方に摺接させる構造で は、軸受の回転数が上がるに従い、通電材の接触部の滑り速度が速くなり、その ため通電材の滑り部の摩耗や、滑り部における滑り音の影響が大きくなると考え られる。 However, in such a structure in which the current-carrying material is attached to one of the inner and outer races and slidably contacts the other, the sliding speed of the contact area of the current-carrying material increases as the number of revolutions of the bearing increases, which causes the current-carrying material to slip. It is considered that the influence of the wear of the parts and the sliding noise at the sliding parts will increase.
【０００５】 この考案の目的は、軸受回転数の増加に伴う通電材接触部の滑り速度の増加が 緩和できる通電転がり軸受を提供することである。An object of the present invention is to provide an electrically-conductive rolling bearing capable of reducing the increase in the sliding speed of the current-carrying material contact portion as the bearing rotation speed increases.
【０００６】[0006]
【課題を解決するための手段】 この通電転がり軸受は、保持器の幅面に保持器通電板を設け、この保持器通電 板に摺接する通電材を介して内外輪を導通させたものである。 通電材は、第１および第２の２種類のものを設け、第１の通電材は、内輪およ び外輪の一方に設けられて保持器通電板に弾性的に摺接するものとする。第２の 通電材は、内輪および外輪の他方と前記保持器通電板との一方に固定状態にあっ て他方に弾性的に摺接するものとする。換言すれば、第２の通電材は、第１の通 電材と同様に内輪または外輪に固定されて保持器通電板に摺接するものとし、あ るいは保持器通電板に設けられて内輪または外輪に摺接するものとする。Means for Solving the Problems This energizing rolling bearing is one in which a cage energizing plate is provided on the width surface of a cage, and the inner and outer rings are electrically connected via an energizing material that is in sliding contact with the cage energizing plate. Two kinds of current-carrying materials, first and second, are provided, and the first current-carrying material is provided on one of the inner ring and the outer ring and elastically slidably contacts the cage current-carrying plate. The second current-carrying member is fixed to one of the other of the inner ring and the outer ring and the cage current-carrying plate and elastically comes into sliding contact with the other. In other words, the second conductive material is fixed to the inner ring or the outer ring and slidably contacts the cage current-carrying plate like the first current-carrying material, or is provided on the cage current-carrying plate and is attached to the inner ring or the outer ring. Shall be in sliding contact with.
【０００７】[0007]
この構成によると、第１の通電材と、保持器通電板と、第２の通電材とを介し て内輪と外輪とが電気的に導通状態となる。第１の通電材は内輪または外輪に取 付けられて保持器通電板に摺接し、また第２の通電材は内外輪または保持器通電 板の一方に固定されて他方に摺接する。そのため、第１および第２の通電材の滑 り速度は、いずれも保持器と内輪または外輪との相対速度となる。一方、保持器 は内外輪間で回転自在であり、内輪と外輪の中間速度で回転する。そのため、各 通電材の滑り接触箇所における滑り速度は、従来の内外輪の一方に取付けた通電 材を直接に他方に摺接させるものに比べて遅くなる。 According to this structure, the inner ring and the outer ring are electrically connected to each other through the first conductive material, the cage conductive plate, and the second conductive material. The first current-carrying member is attached to the inner ring or the outer ring and is in sliding contact with the cage current-carrying plate, and the second current-carrying member is fixed to one of the inner and outer rings or the cage current-carrying plate and is in sliding contact with the other. Therefore, the sliding speeds of the first and second conductive materials are both relative speeds between the cage and the inner ring or the outer ring. On the other hand, the cage is rotatable between the inner and outer rings and rotates at an intermediate speed between the inner and outer rings. Therefore, the sliding speed at the sliding contact portion of each current carrying member is slower than that of the conventional one in which the current carrying member attached to one of the inner and outer races is brought into direct sliding contact with the other.
【０００８】[0008]
この考案の一実施例を図１および図２に基づいて説明する。この実施例は、深 溝玉軸受に適用した例であり、内輪１と外輪２との間に、保持器３で保持された 鋼球製の転動体４を介在させてある。保持器３は転動体４を保持するポケットを 櫛状に形成したリング状のものであり、そのポケット開口側の軸受幅面を蓋する シール５が外輪２に取付けてある。 An embodiment of this invention will be described with reference to FIGS. This embodiment is an example applied to a deep groove ball bearing, and a rolling element 4 made of steel balls held by a cage 3 is interposed between an inner ring 1 and an outer ring 2. The cage 3 is a ring-shaped pocket in which pockets for holding the rolling elements 4 are formed in a comb shape, and a seal 5 for covering the bearing width surface on the pocket opening side is attached to the outer ring 2.
【０００９】 保持器３の非開口側の幅面には、リング状の保持器通電板６が固定してあり、 この保持器通電板６に弾性リップ部７ａ，８ａが各々摺接するシール兼用の内輪 通電材７および外輪通電材８が設けられている。これら内輪通電材７および外輪 通電材８は、いずれも断面がＬ字状に屈曲成形されたリング状板からなり、図２ に拡大して示すように、内輪１の外径面の軸方向端部および外輪２の内径面の軸 方向端部に形成された取付溝９，１０に各々固定されている。この取付状態で、 各通電材７，８はリップ部７ａ，８ａの弾性で保持器通電板６に図１の矢印方向 に押し付け状態に接触する。A ring-shaped retainer current-carrying plate 6 is fixed to the width surface of the retainer 3 on the non-opening side, and elastic lip portions 7 a and 8 a are slidably contacted with the retainer current-carrying plate 6, respectively. A current-carrying material 7 and an outer ring current-carrying material 8 are provided. The inner ring current-carrying material 7 and the outer ring current-carrying material 8 each consist of a ring-shaped plate that is bent and formed into an L-shaped cross section, and as shown in the enlarged view of FIG. Section and mounting grooves 9 and 10 formed at the axial ends of the inner diameter surface of the outer ring 2 respectively. In this mounted state, the current-carrying materials 7 and 8 are pressed against the cage current-carrying plate 6 in the direction of the arrow in FIG. 1 by the elasticity of the lip portions 7a and 8a.
【００１０】 各通電材７，８および保持器通電板６の材質は、ステンレス板等の金属板が用 いられるが、通電材７，８に導電ゴムを使用しても良い。保持器３は、樹脂材料 等の電気絶縁性の材質が好ましいが、金属製であっても良い。内外輪１，２は、 通常の軸受鋼等からなる。 なお、この実施例の場合、内輪通電材７および外輪通電材８は、いずれもが特 許請求の範囲で言う第１の通電材および第２の通電材に該当する。A metal plate such as a stainless steel plate is used as a material for each of the current-carrying members 7, 8 and the cage current-carrying plate 6, but conductive rubber may be used for the current-carrying members 7, 8. The cage 3 is preferably made of an electrically insulating material such as a resin material, but may be made of metal. The inner and outer rings 1, 2 are made of normal bearing steel or the like. In the case of this embodiment, the inner ring current-carrying material 7 and the outer ring current-carrying material 8 both correspond to the first current-carrying material and the second current-carrying material referred to in the claims.
【００１１】 この構成によると、内輪１と外輪２とは、内輪通電材７、保持器通電板６、お よび外輪通電材８を介して低電気抵抗で導通状態になる。そのため、内輪１内に 固定される軸（図示せず）に外輪２から電圧印加や電流の供給を行うことができ 、また静電気や周辺機器の漏れ電流で内外輪１，２間に電位差が生じることがな くなり、軌道面と転動体４との間の放電による電食が防止される。According to this configuration, the inner ring 1 and the outer ring 2 are brought into a conductive state with low electrical resistance through the inner ring current-carrying material 7, the cage current-carrying plate 6, and the outer ring current-carrying material 8. Therefore, it is possible to apply a voltage or supply a current from the outer ring 2 to a shaft (not shown) fixed in the inner ring 1, and a potential difference occurs between the inner and outer rings 1 and 2 due to static electricity or leakage current of peripheral equipment. And the electrolytic corrosion due to the electric discharge between the raceway surface and the rolling elements 4 is prevented.
【００１２】 内輪通電材７および外輪通電材８は、いずれも各々内輪１および外輪２に固定 されて、保持器３に固定状態の保持器通電板６に摺接する。そのため、これら通 電材７，８が摺接する部分の滑り速度は、いずれも保持器３と内輪１または外輪 ２との相対速度となる。一方、保持器３は内外輪１，２間で回転自在であり、内 輪１と外輪２の中間速度で回転する。そのため、各通電材７，８の滑り速度は、 従来の内外輪の一方に取付けた通電材を直接に他方に摺接させるものに比べて遅 くなる。したがって、軸受が高速回転で使用される場合においても、各通電材７ ，８および保持器通電板６の滑り部の摩耗や、滑り音の増大を抑えることができ る。The inner ring current-carrying material 7 and the outer ring current-carrying material 8 are fixed to the inner ring 1 and the outer ring 2, respectively, and are in sliding contact with the cage current-carrying plate 6 fixed to the cage 3. Therefore, the sliding speed of the portion where these conductive materials 7, 8 are in sliding contact is the relative speed between the cage 3 and the inner ring 1 or the outer ring 2. On the other hand, the cage 3 is rotatable between the inner and outer races 1 and 2, and rotates at an intermediate speed between the inner race 1 and the outer race 2. Therefore, the sliding speed of each of the current-carrying members 7 and 8 is slower than that of the conventional one in which the current-carrying member attached to one of the inner and outer races is brought into direct sliding contact with the other. Therefore, even when the bearing is used at high speed rotation, it is possible to suppress wear of the sliding portions of the current-carrying materials 7 and 8 and the cage current-carrying plate 6 and increase of the sliding noise.
【００１３】 図２はこの考案の他の実施例を示す。この例は、保持器通電板６に、第２の通 電材である外輪通電材１１を設け、外輪通電材１１の外径端を外輪２の内径面の からなる滑り面２ａに接触させたものである。外輪通電材１１は、保持器通電板 ６と一体に形成したリング板部分からなり、自身の弾性で滑り面２ａに押し付け 状態に接触する。内輪通電材７は第１の通電材となるものであり、前記実施例と 同様に設けられて保持器通電板６にリップ部７ａが接触する。FIG. 2 shows another embodiment of the present invention. In this example, the cage energizing plate 6 is provided with an outer ring energizing member 11 which is a second energizing member, and the outer diameter end of the outer ring energizing member 11 is brought into contact with the sliding surface 2a consisting of the inner diameter surface of the outer ring 2. Is. The outer ring current-carrying material 11 is composed of a ring plate portion integrally formed with the cage current-carrying plate 6, and is pressed against the sliding surface 2a by its own elasticity and comes into contact with the sliding surface 2a. The inner ring current-carrying material 7 serves as a first current-carrying material, and is provided in the same manner as in the above-mentioned embodiment, and the lip 7a contacts the cage current-carrying plate 6.
【００１４】 この構成の場合も、内輪通電材７、保持器通電板６、および外輪通電材１１を 介して内外輪１，２が導通する。また、外輪通電材１１と外輪２の滑り面２ａと の滑り速度も、保持器３と外輪２との相対速度となり、滑り速度が遅くなる。Also in the case of this configuration, the inner and outer rings 1 and 2 are electrically connected via the inner ring current-carrying material 7, the cage current-carrying plate 6, and the outer wheel current-carrying material 11. Further, the sliding speed between the outer ring current-carrying material 11 and the sliding surface 2a of the outer ring 2 is also the relative speed between the cage 3 and the outer ring 2, and the sliding speed becomes slow.
【００１５】 なお、図３の実施例は、外輪通電材１１を保持器通電板６と一体に形成したが 、同図の例と逆に、内輪通電材７を保持器通電板６に一体に形成して内輪１に摺 接させ、外輪通電材１１を保持器通電板６に摺接させるようにしても良い。 また、前記各実施例は何れも通電材７，８，１１がリング状に形成されてシー ルを兼用するものとしたが、各通電材７，８，１１は、周方向の複数箇所に分割 して設けたものであっても良い。各通電材７，８，１１の弾性的な押し付け力は 、通電材とは別に設けた弾性体で与えるようにしても良い。 さらに、この考案は、深溝玉軸受に限らず、転がり軸受一般に適用することが できる。Although the outer ring current-carrying material 11 is formed integrally with the cage current-carrying plate 6 in the embodiment shown in FIG. 3, the inner-wheel current-carrying material 7 is integrally formed with the cage current-carrying plate 6 in the opposite manner to the example shown in FIG. Alternatively, the inner ring 1 may be formed in sliding contact with the inner ring 1 and the outer ring energizing member 11 may be slid in contact with the cage energizing plate 6. In each of the above embodiments, the current-carrying materials 7, 8 and 11 are formed in a ring shape and also serve as a seal. However, the current-carrying materials 7, 8 and 11 are divided into a plurality of portions in the circumferential direction. It may be provided by doing. The elastic pressing force of each current-carrying material 7, 8, 11 may be given by an elastic body provided separately from the current-carrying material. Furthermore, the present invention can be applied not only to deep groove ball bearings but also to rolling bearings in general.
【００１６】[0016]
この考案の通電転がり軸受は、保持器の幅面に保持器通電板を設け、この保持 器通電板を介して第１および第２の通電材で内外輪間を導通させたため、各通電 材の滑り接触箇所における滑り速度が、保持器と内輪または外輪との相対速度と なって遅くなる。このため、軸受が高速回転で使用される場合においても、通電 材の滑り部の摩耗や、滑り部の異音の発生を抑えることができる。 The energized rolling bearing of the present invention is provided with a retainer energizing plate on the width surface of the retainer, and the inner and outer races are electrically connected by the first and second energizing members through the retainer energizing plate. The sliding speed at the contact point becomes slow due to the relative speed between the cage and the inner or outer ring. Therefore, even when the bearing is used at high speed, it is possible to suppress wear of the sliding portion of the conductive material and generation of abnormal noise of the sliding portion.
【図１】（Ａ）はこの考案の一実施例の断面図、（Ｂ）
はその正面図である。FIG. 1A is a sectional view of an embodiment of the present invention, and FIG.
Is a front view thereof.
【図２】図１の部分拡大断面図である。FIG. 2 is a partially enlarged sectional view of FIG.
【図３】他の実施例の部分断面図である。FIG. 3 is a partial cross-sectional view of another embodiment.
１…内輪、２…外輪、３…保持器、４…転動体、６…保
持器通電板、７…内輪通電材、８…外輪通電材、１１…
外輪通電材DESCRIPTION OF SYMBOLS 1 ... Inner ring, 2 ... Outer ring, 3 ... Cage, 4 ... Rolling element, 6 ... Cage energizing plate, 7 ... Inner ring energizing material, 8 ... Outer ring energizing material, 11 ...
Outer ring current-carrying material
Claims (1)
の保持器通電板に弾性的に摺接する第１の通電材を内輪
および外輪の一方に設け、内輪および外輪の他方と前記
保持器通電板との一方に固定状態にあって他方に弾性的
に摺接する第２の通電材を設けた通電転がり軸受。1. A retainer current-carrying plate is provided on a width surface of the retainer, and a first current-carrying member elastically slidably contacting the retainer current-providing plate is provided on one of the inner ring and the outer ring, and the other of the inner ring and the outer ring is held by the retainer. A current-carrying rolling bearing provided with a second current-carrying member which is fixed to one side of the device current-carrying plate and elastically slidably contacts the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP059689U JPH0614548U (en) | 1992-07-31 | 1992-07-31 | Energized rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP059689U JPH0614548U (en) | 1992-07-31 | 1992-07-31 | Energized rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0614548U true JPH0614548U (en) | 1994-02-25 |
Family
ID=13120434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP059689U Pending JPH0614548U (en) | 1992-07-31 | 1992-07-31 | Energized rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0614548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021862A (en) * | 2000-07-03 | 2002-01-23 | Nsk Ltd | Rolling bearing device |
| WO2023133746A1 (en) * | 2022-01-13 | 2023-07-20 | 舍弗勒技术股份两合公司 | Bearing |
-
1992
- 1992-07-31 JP JP059689U patent/JPH0614548U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021862A (en) * | 2000-07-03 | 2002-01-23 | Nsk Ltd | Rolling bearing device |
| WO2023133746A1 (en) * | 2022-01-13 | 2023-07-20 | 舍弗勒技术股份两合公司 | Bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5139425A (en) | Rolling bearing with rotating electrical contacts | |
| US3564477A (en) | Conductor seal | |
| JP2010018045A (en) | Bearing device for axle | |
| US20110317953A1 (en) | Bearing closure/shield for current passage in electric equipment | |
| JPH1130239A (en) | Electrolytic corrosion preventive rolling bearing | |
| JP2001153145A (en) | Hermetically sealed rolling bearing | |
| JPH0614548U (en) | Energized rolling bearing | |
| JPH0614547U (en) | Energized rolling bearing | |
| JPH11264421A (en) | Adapter for rolling-bearing | |
| CN115208135A (en) | Electrical machine with an electrically conductive sleeve | |
| JP5776800B2 (en) | Axle bearing device | |
| JPH0544570Y2 (en) | ||
| CN111577769A (en) | Sealing device and bearing assembly | |
| JP4110793B2 (en) | Rolling bearing | |
| JPH10159841A (en) | Rolling bearing | |
| JPH0682438U (en) | Energized rolling bearing | |
| JP2000055055A5 (en) | ||
| JPH085370Y2 (en) | Rolling bearing for energization | |
| JP4466139B2 (en) | Rolling bearing sealing structure | |
| JP2507781Y2 (en) | Energizing bearing | |
| JP2524085Y2 (en) | Energized rolling bearing | |
| JPH0755380Y2 (en) | Energizing bearing | |
| WO2023238392A1 (en) | Rolling bearing | |
| JP2008208928A (en) | Rolling bearing | |
| JP2010007738A (en) | Rolling bearing |