JPH0138972B2 - - Google Patents
Info
- Publication number
- JPH0138972B2 JPH0138972B2 JP62179854A JP17985487A JPH0138972B2 JP H0138972 B2 JPH0138972 B2 JP H0138972B2 JP 62179854 A JP62179854 A JP 62179854A JP 17985487 A JP17985487 A JP 17985487A JP H0138972 B2 JPH0138972 B2 JP H0138972B2
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- cage
- magnetic
- bearing
- edge
- 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.)
- Expired
Links
- 238000005096 rolling process Methods 0.000 claims description 57
- 239000011553 magnetic fluid Substances 0.000 claims description 19
- 239000000314 lubricant Substances 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 2
- 239000006249 magnetic particle Substances 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 description 7
- 238000005461 lubrication Methods 0.000 description 6
- 239000004519 grease Substances 0.000 description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- AXWLFOKLQGDQFR-UHFFFAOYSA-N zinc iron(2+) manganese(2+) oxygen(2-) Chemical compound [O-2].[Fe+2].[Zn+2].[Mn+2].[O-2].[O-2] AXWLFOKLQGDQFR-UHFFFAOYSA-N 0.000 description 1
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
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/664—Retaining the liquid in or near the bearing
- F16C33/6644—Retaining the liquid in or near the bearing by a magnetic field acting on a magnetic liquid
-
- 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
-
- 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
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
- F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、磁性流体を軸受内部に保持し、該磁
性流体によつて軸受転動体の潤滑を行うようにし
たころがり軸受に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rolling bearing in which a magnetic fluid is held inside the bearing and the rolling elements of the bearing are lubricated by the magnetic fluid.
［従来技術］
玉軸受やローラ軸受などのころがり軸受では、
鋼球またはローラの転動体と内外輪の軌道面との
間に潤滑剤を供給して内外輪間の円滑な相対回転
をもたらすように考慮しているのが、この潤滑剤
を軸受内部に保持するために、マンガン亜鉛酸化
鉄（MnZnO・Fe4O5）等の微細な磁性粒子を非
磁性の油性キヤリヤにコロイド状に含有させた磁
性流体を潤滑剤として用いかつ軸受内部に磁力線
を生じせしめてこの磁力線により前記磁性流体を
軸受内に引きつけるようにしたものがある。例え
ば第１図ａに示すように転動体４を保持したケー
ジ１の全体をそのまま磁化させたり、同図ｂ，ｃ
に示す如く内外輪２，３自体を直接磁化させた構
造のものが知られている。第１図ａの例ではケー
ジ１の軸受軸線方向の両側部に異極性の磁極Ｎ，
Ｓが生じ、これによる磁力線は軸受軸線方向に流
れる。また第２図のように転動体４に磁石５を埋
め込むか転動体自体を磁化するようにした構造の
ものが知られている（例えば米国特許第3977739
号）。[Prior art] In rolling bearings such as ball bearings and roller bearings,
This lubricant is held inside the bearing in order to supply lubricant between the rolling elements of steel balls or rollers and the raceway surfaces of the inner and outer rings, resulting in smooth relative rotation between the inner and outer rings. In order to achieve this, a magnetic fluid containing fine magnetic particles such as manganese zinc iron oxide (MnZnO Fe 4 O 5 ) in a colloidal form in a non-magnetic oil carrier is used as a lubricant and magnetic lines of force are generated inside the bearing. There is a device in which the magnetic fluid is drawn into the bearing by the lines of magnetic force of the lever. For example, as shown in Figure 1a, the entire cage 1 holding the rolling elements 4 may be magnetized as it is, or
A structure in which the inner and outer rings 2 and 3 themselves are directly magnetized is known as shown in FIG. In the example shown in Figure 1a, magnetic poles N of different polarities are located on both sides of the cage 1 in the direction of the bearing axis.
S occurs, and the lines of magnetic force caused by this flow in the direction of the bearing axis. Furthermore, as shown in FIG. 2, a structure in which a magnet 5 is embedded in the rolling element 4 or the rolling element itself is magnetized is known (for example, U.S. Pat. No. 3,977,739).
issue).
［発明が解決しようとする問題点］
第１図ａ，ｂ，ｃに示す従来例は、いずれも転
動体４を横切る磁力線が該転動体の部分で軸受の
軸線方向に沿う方向に流れるので、磁性流体は転
動体４の転動面４ａ，４ｂに充分な保持がなされ
ない。特に第１図ｃのようにローラ軸受で内輪２
または外輪３のみを磁化させた場合は磁力線６が
転動面を通らないので、ローラの端面のみ磁性流
体が保持され転動面にはほとんど磁性流体の保持
がなされない。第１図ｂの例では内輪２の両端面
に磁極が生じ、転動体４と内輪接触面２ａの部分
が磁石の中央部となり、この部分での磁力はあま
り強くなく、磁性流体の転動面集中が充分でな
い。さらに第２図の場合は、軸受使用中に磁力線
の向きがたえず変化し、必要な個所に常に磁性流
体が保持されるとは限らない。[Problems to be Solved by the Invention] In all of the conventional examples shown in FIGS. 1a, b, and c, the lines of magnetic force that cross the rolling elements 4 flow in the direction along the axial direction of the bearing at the rolling elements. The magnetic fluid is not sufficiently retained on the rolling surfaces 4a, 4b of the rolling elements 4. In particular, as shown in Figure 1c, the inner ring 2 is mounted on a roller bearing.
Alternatively, if only the outer ring 3 is magnetized, the lines of magnetic force 6 do not pass through the rolling surface, so the magnetic fluid is retained only on the end surface of the roller, and almost no magnetic fluid is retained on the rolling surface. In the example shown in Fig. 1b, magnetic poles are generated on both end faces of the inner ring 2, and the part where the rolling elements 4 and the inner ring contact surface 2a are the central part of the magnet.The magnetic force in this part is not very strong, and the rolling surface of the magnetic fluid Not concentrating enough. Furthermore, in the case of FIG. 2, the direction of the lines of magnetic force constantly changes while the bearing is in use, and the magnetic fluid is not always retained at the required location.
本発明は、上述した従来構造のものと比べては
るかに確実に磁性流体を軸受内の内外輪軌道面お
よび（または）ケージのポケツト面との転動体と
の接触部に集中、保持することができ、したがつ
て低トルクで回転むらがなく安定した高速回転性
能が得られるころがり軸受を提供することにあ
る。 The present invention makes it possible to concentrate and hold the magnetic fluid much more reliably at the contact portions of the inner and outer ring raceway surfaces in the bearing and/or the contact portions of the pocket surfaces of the cage and the rolling elements than those of the conventional structure described above. It is an object of the present invention to provide a rolling bearing that can achieve stable high-speed rotation performance with low torque, no uneven rotation, and stable high-speed rotation performance.
［問題点を解決するための手段］
本発明は、円環状のケージの各ポケツト穴に転
動体を保持し、かつ磁性流体を潤滑剤として封入
したころがり軸受において、前記ケージ一方の側
面の縁部を外輪外面もしくは内輪外面に近接さ
せ、前記ケージの他方の側面の縁部を前記転動体
に向けて内方へ屈曲させ、かつ前記ケージの両側
面の縁部を互いに異磁極に磁化し、これによつて
磁束が前記転動体と前記外輪内面もしくは前記内
輪外面との接触面を横切るようにしたものであ
る。[Means for Solving the Problems] The present invention provides a rolling bearing in which a rolling element is held in each pocket hole of an annular cage and a magnetic fluid is sealed as a lubricant, in which an edge on one side of the cage is is brought close to the outer surface of the outer ring or the outer surface of the inner ring, the edge of the other side of the cage is bent inward toward the rolling element, and the edges of both sides of the cage are magnetized to have different magnetic poles. This causes the magnetic flux to cross the contact surface between the rolling elements and the inner surface of the outer ring or the outer surface of the inner ring.
［作用］
本発明においては、円環状のケージの両側面
（軸受軸線方向の外側面）の縁部の一方を外輪ま
たは内輪に向けて折曲、近接せしめ、他方の縁部
と転動体へ向けて屈曲させるとともにこれら両側
の縁部が異磁極となるように磁化したので、一方
の縁部からの磁力線は外輪または内輪を経て転動
体を通り、さらに転動体から該転動体に近接して
いる他方の縁部（ケージの縁部）に至るという磁
気回路が形成され、磁力線が外輪または内輪から
転動体に流れるとき、外輪または内輪と転動体の
接触面（転動面）を横切ることになり、この部分
に磁性流体が集中し、保持され、これによつて潤
滑切れのない安定かつ良好な高速回転性がもたら
される。[Operation] In the present invention, one of the edges of both side surfaces (outer surface in the direction of the bearing axis) of the annular cage is bent toward the outer ring or the inner ring, and the other edge is bent toward the rolling elements. Since the edges on both sides are magnetized to have different magnetic poles, the lines of magnetic force from one edge pass through the outer ring or the inner ring, pass through the rolling elements, and then approach the rolling elements. A magnetic circuit is formed that reaches the other edge (edge of the cage), and when the lines of magnetic force flow from the outer ring or inner ring to the rolling elements, they cross the contact surface (rolling surface) between the outer ring or inner ring and the rolling elements. The magnetic fluid is concentrated and retained in this area, resulting in stable and good high-speed rotation without running out of lubrication.
［実施例］
以下、図面を参照して本発明の実施例を説明す
る。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.
第３図ないし第５図は本発明の各種実施例に係
るころがり軸の部分的な縦断面図であり、第６図
は第５図に示す実施例の部分的な破断斜視図であ
る。いずれもポケツト内に転動体を保持した磁性
体製円環状ケージ自体を磁化しかつその形状に工
夫を凝して磁性流体を必要箇所に有効に保持かつ
集中できるようにしたものである。まず第３図の
例は玉軸受の例であつて、円環状のケージ１を軸
受軸線方向に磁化するとともに、各転動体部分で
ケージ１の片側部端縁１ｃを外輪３の内面に近接
させ、他方の側部の端縁１ｄを転動体４に近接さ
せてある。ケージ１の軸受軸線方向の側部は、転
動体４が入るポケツト穴８の周囲で連らなつてい
る。ケージ１の片側部端縁１ｃと他方の側部端縁
１ｄは互いに異磁極となるように磁化してある。
このように磁化することにより磁気回路は図示の
如くケージ１の外輪３と転動体４との間に生じ、
磁力線６が転動体４と外輪軌道面の間を横切り、
この間に強い磁場勾配が生じるので、転動面に磁
性流体を集中保持することができる。第４図の例
は上述の構成をころがりローラ軸受に適用したも
のであるが、同様に磁力線６はケージ１の一端縁
１ｃから外輪３を経て転動面を横切つて転動体４
からケージ他端縁１ｄに流れる。第３図および第
４図の実施例ではケージ１の一端縁１ｃを外輪側
へ向けた例を示したが、内輪２の外周面へ向けた
態様も可能である。第５図および第６図はケージ
１の一端縁を、軸受円周方向に交互に、内外輪
２，３に向けて折り曲げた例である。即ち第６図
に最もよく示される如く、ケージ１の一端縁１ｃ
を隣接した転動体４の部分で交互に外輪側および
内輪側へ近接するように折り曲げ、他端縁１ｄを
転動体４の端面に近接させ、さらにケージ自体を
軸受の軸方向に磁化する。一方の端縁１ｃが例え
ばＮ極とすると、他方の端縁１ｄはＳ極となり、
磁気回路は、符号６，７で示す如く外輪３に近接
した一方の端縁１ｃから外輪３、転動体４、他方
の端縁１ｄに至る磁力線の回路と、内輪２に近接
した一方の端縁１ｃから内輪２、転動体４、他方
の端縁１ｄに至る磁力線の回路となる。いずれも
磁力線６，７は転動体４と外輪、内輪の軌道面の
間を横切ることとなる。なお、この実施例のほか
に各々の転動体に対して保持器１の一端縁を２分
割しそれぞれ内外輪側へ折り曲げてもよい。軸受
全体としてケージ１、内外輪２，３および転動体
４間に磁力線が流れ、これによつて内外輪両方の
転動面に磁性流体が集中する。 3 to 5 are partial longitudinal sectional views of rolling shafts according to various embodiments of the present invention, and FIG. 6 is a partially cutaway perspective view of the embodiment shown in FIG. In both cases, the annular cage made of magnetic material that holds the rolling elements in the pocket is itself magnetized, and the shape of the cage is devised so that the magnetic fluid can be effectively retained and concentrated at the required location. First, the example shown in FIG. 3 is an example of a ball bearing, in which an annular cage 1 is magnetized in the direction of the bearing axis, and one end edge 1c of the cage 1 is brought close to the inner surface of the outer ring 3 at each rolling element portion. , the end edge 1d of the other side is located close to the rolling element 4. A side portion of the cage 1 in the direction of the bearing axis is continuous around a pocket hole 8 into which the rolling element 4 is inserted. One side edge 1c and the other side edge 1d of the cage 1 are magnetized to have different magnetic poles.
By magnetizing in this way, a magnetic circuit is created between the outer ring 3 of the cage 1 and the rolling elements 4 as shown in the figure.
Magnetic lines of force 6 cross between the rolling elements 4 and the outer ring raceway surface,
Since a strong magnetic field gradient is generated during this time, the magnetic fluid can be concentrated and held on the rolling surface. In the example shown in FIG. 4, the above-mentioned configuration is applied to a rolling roller bearing. Similarly, the lines of magnetic force 6 run from one end edge 1c of the cage 1, through the outer ring 3, and across the rolling surface to reach the rolling elements 4.
and flows to the other end edge 1d of the cage. In the embodiments shown in FIGS. 3 and 4, an example is shown in which one end edge 1c of the cage 1 is directed toward the outer ring side, but an embodiment in which it is directed toward the outer peripheral surface of the inner ring 2 is also possible. 5 and 6 show examples in which one end edge of the cage 1 is alternately bent toward the inner and outer rings 2 and 3 in the circumferential direction of the bearing. That is, as best shown in FIG. 6, one end edge 1c of the cage 1
The cage is bent so as to approach the outer ring side and the inner ring side alternately at adjacent rolling elements 4, the other end edge 1d is brought closer to the end surface of the rolling element 4, and the cage itself is magnetized in the axial direction of the bearing. If one edge 1c is, for example, an N pole, the other edge 1d is an S pole,
The magnetic circuit includes a circuit of magnetic lines of force from one edge 1c close to the outer ring 3 to the outer ring 3, rolling elements 4, and the other edge 1d, as shown by symbols 6 and 7, and one edge near the inner ring 2. It becomes a circuit of magnetic lines of force from 1c to the inner ring 2, the rolling elements 4, and the other edge 1d. In both cases, the lines of magnetic force 6 and 7 cross between the rolling elements 4 and the raceway surfaces of the outer ring and the inner ring. In addition to this embodiment, one end edge of the cage 1 for each rolling element may be divided into two parts and each part may be bent toward the inner and outer rings. Lines of magnetic force flow between the cage 1, the inner and outer rings 2 and 3, and the rolling elements 4 in the bearing as a whole, thereby concentrating the magnetic fluid on the rolling surfaces of both the inner and outer rings.
［発明の効果］
本発明によれば、従来構造に比べて、より確実
に磁性流体を軸受内の軌道面もしくはケージのポ
ケツト面と転動体との接触部に集中保持すること
ができ、この磁性流体潤滑により、従来のグリー
ス潤滑と油潤滑の両方の利点を同時に得ることが
できる。即ち、本発明によりグリースで得られる
密封性が得られると同時に特別な潤滑構造を必要
としない手軽さ、周囲へ飛散しにくい等の利点が
得られる。またグリースはチヤーニングなどの不
安定現象が発生し易く、トルクむら、回転むらな
どが生じることがあるが、本発明による軸受はこ
のようなことはなく、不安定現象に基づく騒音、
振動も抑えられる。さらに油潤滑による低トルク
性、高速回転性がもたらされる等利点が多い。[Effects of the Invention] According to the present invention, compared to conventional structures, the magnetic fluid can be more reliably concentrated and retained in the contact area between the raceway surface in the bearing or the pocket surface of the cage and the rolling elements, and this magnetic fluid Hydrodynamic lubrication provides the advantages of both traditional grease and oil lubrication at the same time. That is, the present invention provides the sealing properties that can be obtained with grease, and at the same time provides advantages such as ease of use, which does not require a special lubrication structure, and difficulty in scattering to the surroundings. In addition, grease is prone to unstable phenomena such as churning, which can cause uneven torque and uneven rotation, but the bearing according to the present invention does not suffer from such problems, and does not cause noise or noise due to unstable phenomena.
Vibration is also suppressed. Furthermore, it has many advantages such as low torque and high speed rotation due to oil lubrication.
第１図ａ，ｂ，ｃは磁性流体潤滑による軸受の
各種従来例を示した部分的な縦断面図、第２図は
転動体に磁石を埋め込んだ従来の軸受の部分的な
正面図、第３図は本発明の１実施例に係るころが
り玉軸受の部分的な縦断面図、第４図は本発明の
他の実施例のローラ軸受の部分的な縦断面図、第
５図は本発明のさらに他の実施例を示した部分的
な縦断面図、第６図は第５図に示す実施例の裁断
した斜視図である。
１……ケージ、２……内輪、３……外輪、４…
…転動体、８……ポケツト穴、６，７……磁力
線。
Figures 1a, b, and c are partial vertical sectional views showing various conventional examples of bearings using magnetic fluid lubrication; Figure 2 is a partial front view of a conventional bearing in which magnets are embedded in the rolling elements; 3 is a partial vertical sectional view of a rolling ball bearing according to one embodiment of the present invention, FIG. 4 is a partial longitudinal sectional view of a roller bearing according to another embodiment of the present invention, and FIG. 5 is a partial longitudinal sectional view of a roller bearing according to another embodiment of the present invention. FIG. 6 is a cutaway perspective view of the embodiment shown in FIG. 5. FIG. 1...Cage, 2...Inner ring, 3...Outer ring, 4...
...Rolling element, 8...Pocket hole, 6,7...Magnetic field lines.
Claims (1)
し、かつ微細な磁性粒子を非磁性の油性キヤリヤ
にコロイド状に含有させた磁性流体を潤滑剤とし
て封入したころがり軸受において、前記ケージの
一方の側面の縁部を外輪内面もしくは内輪外面に
近接させ、前記ケージの他方の側面の縁部を前記
転動体に向けて内方へ屈曲させ、かつ前記ゲージ
の両側面の縁部を互いに異磁極に磁化し、これに
よつて磁束が前記転動体と前記外輪内面もしくは
前記内輪外面との接触面を横切るようにしたこと
を特徴とするころがり軸受。 ２ 前記ケージの一方の側面の縁部を軸受円周方
向に複数個に分割し、かつこれらの縁部を互い違
いに外輪側および内輪側へ屈曲させたことを特徴
とする特許請求の範囲第１項に記載したころがり
軸受。[Scope of Claims] 1. A rolling bearing in which a rolling element is held in each pocket hole of an annular gauge, and a magnetic fluid containing fine magnetic particles in a colloidal form in a non-magnetic oil carrier is sealed as a lubricant. , the edge of one side of the cage is brought close to the inner surface of the outer ring or the outer surface of the inner ring, the edge of the other side of the cage is bent inward toward the rolling element, and the edges of both sides of the gauge are bent inwardly toward the rolling elements; A rolling bearing characterized in that the parts are magnetized to have different magnetic poles from each other, so that magnetic flux crosses a contact surface between the rolling elements and the inner surface of the outer ring or the outer surface of the inner ring. 2. Claim 1, characterized in that the edge of one side of the cage is divided into a plurality of parts in the circumferential direction of the bearing, and these edges are alternately bent toward the outer ring and the inner ring. Rolling bearings listed in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179854A JPS6353317A (en) | 1987-07-18 | 1987-07-18 | Roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62179854A JPS6353317A (en) | 1987-07-18 | 1987-07-18 | Roller bearing |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59040230A Division JPS60188622A (en) | 1984-03-02 | 1984-03-02 | Roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6353317A JPS6353317A (en) | 1988-03-07 |
| JPH0138972B2 true JPH0138972B2 (en) | 1989-08-17 |
Family
ID=16073077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62179854A Granted JPS6353317A (en) | 1987-07-18 | 1987-07-18 | Roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6353317A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010009331B4 (en) * | 2010-02-25 | 2020-06-25 | Schaeffler Technologies AG & Co. KG | Cage of a rolling bearing |
-
1987
- 1987-07-18 JP JP62179854A patent/JPS6353317A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6353317A (en) | 1988-03-07 |
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