JP2005098453A - Rolling bearing - Google Patents

Rolling bearing Download PDF

Info

Publication number
JP2005098453A
JP2005098453A JP2003335033A JP2003335033A JP2005098453A JP 2005098453 A JP2005098453 A JP 2005098453A JP 2003335033 A JP2003335033 A JP 2003335033A JP 2003335033 A JP2003335033 A JP 2003335033A JP 2005098453 A JP2005098453 A JP 2005098453A
Authority
JP
Japan
Prior art keywords
cage
rolling bearing
outer ring
hole
lubricant
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.)
Granted
Application number
JP2003335033A
Other languages
Japanese (ja)
Other versions
JP4341743B2 (en
Inventor
Hiroyuki Urano
寛幸 浦野
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.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko Co Ltd
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 Koyo Seiko Co Ltd filed Critical Koyo Seiko Co Ltd
Priority to JP2003335033A priority Critical patent/JP4341743B2/en
Publication of JP2005098453A publication Critical patent/JP2005098453A/en
Application granted granted Critical
Publication of JP4341743B2 publication Critical patent/JP4341743B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • F16C33/4635—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from plastic, e.g. injection moulded window 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
    • F16C19/22—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

Abstract

<P>PROBLEM TO BE SOLVED: To prevent seizure of the inside diameter surface of an outer ring as a guide surface of a cage. <P>SOLUTION: In this rolling bearing, the cage 5 is guided by the inside diameter surface of the outer ring 2. The cage 5 includes:a bar part 13 interposed between pockets 8; and a pair of annular parts 11 provided on both sides in the axial direction of the bar part 13 and having a part 11A projected annularly from both sides toward the outside diameter. At least one of the bar part 13 and the annular part 11 is provided with a through hole 15 formed to pierce in the radial direction to supply a lubricant 20 from the inside diameter side toward the outside diameter side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、保持器が外輪の内径面に案内される転がり軸受に関し、特に工作機械など高速回転する軸を支持するのに好適な転がり軸受において、その保持器の改良に関する。   The present invention relates to a rolling bearing in which a cage is guided to an inner diameter surface of an outer ring, and more particularly to an improvement of the cage in a rolling bearing suitable for supporting a shaft that rotates at high speed such as a machine tool.

工作機械やスクリューコンプレッサなど、高速回転する軸を支持する転がり軸受の保持器として、一般に外輪案内形式の保持器が用いられる（例えば、特許文献１参照）。このような軸が高速回転する場合には、保持器の案内面である外輪の内径面に焼きつき防止のために潤滑剤を所定量供給する必要がある。
特開平６−２８０８０６号 As a cage for a rolling bearing that supports a shaft that rotates at high speed, such as a machine tool or a screw compressor, an outer ring guide type cage is generally used (see, for example, Patent Document 1). When such a shaft rotates at a high speed, it is necessary to supply a predetermined amount of lubricant to prevent seizure on the inner diameter surface of the outer ring, which is the guide surface of the cage.
JP-A-6-280806

上記転がり軸受の場合、保持器の案内面である外輪の内径面に直接潤滑剤を供給しているが、これには複雑な供給構造が必要であった。また、高速回転する軸受では、内輪軌道の潤滑がもっとも不足し易いため、内輪側にも潤滑剤を供給する必要があり、潤滑剤の供給構造がいっそう複雑になっていた。   In the case of the rolling bearing described above, the lubricant is directly supplied to the inner diameter surface of the outer ring, which is the guide surface of the cage, but this requires a complicated supply structure. In addition, since a bearing rotating at a high speed is most likely to be insufficient in lubrication of the inner ring raceway, it is necessary to supply a lubricant to the inner ring side, and the supply structure of the lubricant is further complicated.

本発明による転がり軸受は、保持器が外輪の内径面に案内される転がり軸受であって、当該保持器はポケット間に介在する柱部とこの柱部の軸方向両側に設けられかつ当該両側から外径側に環状に突出する部分を備える一対の環状部とを備え、柱部および環状部の少なくとも一方に、径方向に貫通して潤滑剤を内径側から外径側に供給する貫通孔が形成されていることを特徴とするものである。   A rolling bearing according to the present invention is a rolling bearing in which a cage is guided to an inner diameter surface of an outer ring, and the cage is provided between a column portion interposed between pockets and both axial sides of the column portion and from both sides. A pair of annular portions having a portion projecting annularly on the outer diameter side, and at least one of the pillar portion and the annular portion has a through hole that penetrates in the radial direction and supplies the lubricant from the inner diameter side to the outer diameter side. It is characterized by being formed.

貫通孔が環状部に形成される場合は、当該環状部には、ポケットの軸方向外側において柱部と面一とされる部分を設け、この部分に当該貫通孔を形成することが好ましい。   When the through hole is formed in the annular portion, it is preferable that the annular portion is provided with a portion that is flush with the column portion on the outer side in the axial direction of the pocket, and the through hole is formed in this portion.

貫通孔が柱部に形成される場合は、当該貫通孔は、柱部のほぼ周方向中央に形成されることが好ましい。   When the through hole is formed in the column part, it is preferable that the through hole is formed substantially at the center in the circumferential direction of the column part.

上記構成によれば、貫通孔より内径側つまり内輪側に供給された潤滑剤が、内輪の回転に伴なう遠心力により径方向外方に移動するとき、その一部が貫通孔を通って外径側つまり外輪の内径面に供給され、その後、その内径面に沿って軸方向に移動する。したがって、保持器に孔を形成し内輪の回転に伴なう遠心力を利用するという簡単な構成で、特に保持器が外輪の内径面に案内される際に、その案内を円滑に行い、焼きつきを防止することができる。   According to the above configuration, when the lubricant supplied to the inner diameter side, that is, the inner ring side from the through hole moves radially outward by the centrifugal force accompanying the rotation of the inner ring, a part of the lubricant passes through the through hole. It is supplied to the outer diameter side, that is, the inner diameter surface of the outer ring, and then moves in the axial direction along the inner diameter surface. Therefore, with a simple configuration in which a hole is formed in the cage and the centrifugal force associated with the rotation of the inner ring is utilized, especially when the cage is guided to the inner diameter surface of the outer ring, the guidance is performed smoothly and baked. Can prevent sticking.

本発明の転がり軸受として、玉軸受あるいはころ軸受の何れにも適用可能である。この転がり軸受が高速回転環境下で使用される場合、保持器は軽量であることが望ましく、耐薬品性、高温特性、耐摩耗性に優れた樹脂が好適に用いられる。また、転動体とともに保持器も回転し、この状態で潤滑剤が外輪の内径面に供給されるため、貫通孔を形成する周方向位置を特別に指定する必要はなく、また貫通孔の個数は、内輪あるいは保持器の回転数に応じて適宜選択してよい。   The rolling bearing of the present invention can be applied to either a ball bearing or a roller bearing. When this rolling bearing is used in a high-speed rotation environment, the cage is preferably lightweight, and a resin excellent in chemical resistance, high temperature characteristics, and wear resistance is preferably used. Also, the cage rotates together with the rolling elements, and in this state, the lubricant is supplied to the inner diameter surface of the outer ring, so there is no need to specify the circumferential position for forming the through hole, and the number of through holes is Depending on the number of rotations of the inner ring or the cage, it may be selected as appropriate.

本発明によれば、簡単で安価に済む構造でもって、外輪の内径面に潤滑剤を供給できる。   According to the present invention, the lubricant can be supplied to the inner diameter surface of the outer ring with a simple and inexpensive structure.

以下、図面を参照して本発明による最良の形態の転がり軸受を説明する。図１は転がり軸受の全体構成を示す斜視図、図２は保持器の一部拡大斜視図、図３は使用状態を示す断面図、図４は転がり軸受の拡大側面図である。   Hereinafter, the best mode rolling bearing according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an overall configuration of a rolling bearing, FIG. 2 is a partially enlarged perspective view of a cage, FIG. 3 is a sectional view showing a use state, and FIG. 4 is an enlarged side view of the rolling bearing.

転がり軸受１は、外輪２と、内輪３と、ころ４と、保持器５とにより構成されている。外輪２は例えば工作機械のハウジング６に非回転に組付けられる。内輪３は工作機械の駆動軸７に圧入されて駆動軸７とともに高速回転する。ころ４は保持器５の円周方向等配位置に形成されたポケット８に、転動自在に保持されている。   The rolling bearing 1 includes an outer ring 2, an inner ring 3, rollers 4, and a cage 5. For example, the outer ring 2 is non-rotatably assembled to a housing 6 of a machine tool. The inner ring 3 is press-fitted into the drive shaft 7 of the machine tool and rotates with the drive shaft 7 at a high speed. The rollers 4 are rotatably held in pockets 8 formed at equidistant positions in the circumferential direction of the cage 5.

保持器５は、例えば耐薬品性、高温特性、耐摩耗性、耐加水分解性、電気的特性に優れたポリエーテルエーテルケトン（登録商標名：ＰＥＥＫ）樹脂から一体に形成される。   The cage 5 is integrally formed from, for example, a polyetheretherketone (registered trade name: PEEK) resin excellent in chemical resistance, high temperature characteristics, abrasion resistance, hydrolysis resistance, and electrical characteristics.

保持器５は、周方向に複数のポケット８を備え、各ポケット８の周方向間それぞれに介在する柱部１３の軸方向両側に一対の環状部１１が設けられている。両環状部１１は、柱部１３の両側から外径側に環状に突出する部分を構成する第１環状部１１Ａと、第１環状部１１Ａの径方向内端側から軸方向内側に環状に延びる第２環状部１１Ｂとにより構成されている。   The cage 5 includes a plurality of pockets 8 in the circumferential direction, and a pair of annular portions 11 is provided on both sides in the axial direction of the column portions 13 interposed between the circumferential directions of the pockets 8. Both the annular portions 11 extend in a ring shape from the radially inner end side of the first annular portion 11A to the inside in the axial direction. The first annular portion 11A forms a portion projecting annularly from both sides of the column portion 13 to the outer diameter side. It is comprised by the 2nd annular part 11B.

第１環状部１１Ａは、外輪２の内径面に案内される環状面９を有する。第２環状部１１Ｂは、ポケット８の軸方向外側において柱部１３の外径面と面一に形成された部分を構成している。   The first annular portion 11 </ b> A has an annular surface 9 that is guided by the inner diameter surface of the outer ring 2. The second annular portion 11 </ b> B constitutes a portion that is formed flush with the outer diameter surface of the column portion 13 on the axially outer side of the pocket 8.

そして、環状部１１の第２環状部１１Ｂにおけるポケット８の軸方向外側近傍、すなわち第１環状部１１Ａの近傍に、径方向に貫通して潤滑剤２０を内径側から外径側に供給する貫通孔１５が形成されている。   And the penetration which supplies the lubricant 20 from the inner diameter side to the outer diameter side through the radial direction near the outside in the axial direction of the pocket 8 in the second annular portion 11B of the annular portion 11, that is, in the vicinity of the first annular portion 11A. A hole 15 is formed.

貫通孔１５は、具体的には、径方向に沿い、かつ、その断面が径方向全域に亙って同一断面の円形に形成されている。貫通孔１５は、この実施形態では断面円形であるが、断面三角形やその他の形状でもよい。図示しないが、内輪外径面、すなわち内輪軌道面２１に潤滑剤を供給するための潤滑剤供給手段が別に設けられている。   Specifically, the through hole 15 is formed in a circular shape having the same cross section along the radial direction and the cross section extending over the entire radial direction. The through hole 15 has a circular cross section in this embodiment, but may have a triangular cross section or other shapes. Although not shown, a lubricant supply means for supplying the lubricant to the outer surface of the inner ring, that is, the inner ring raceway surface 21 is provided separately.

工作機械の駆動軸７が高速回転するのに伴なって内輪３が高速回転し、ころ４が転動する。ここで必要に応じて、例えば潤滑剤供給手段から潤滑剤２０を転がり軸受１に供給する。この場合、潤滑剤２０は内輪軌道面２１に対して供給する。そうすると、高速回転している内輪３の遠心力でもって潤滑剤２０は径方向外方に移動し、その一部は貫通孔１５の取入口２３から貫通孔１５内に供給されるとともに貫通孔１５を通過して当該貫通孔１５の吐出口２４から外輪軌道面２２近傍に供給される。その後外輪２の内径面１０を軸方向に沿って移動し、外輪２の内径面のうち、保持器５の第１環状部１１Ａの環状面９が接触して案内される領域Ａおよび外輪軌道面２２に至り、外輪２の内径面全域が適度に潤滑される。   As the drive shaft 7 of the machine tool rotates at a high speed, the inner ring 3 rotates at a high speed, and the rollers 4 roll. If necessary, the lubricant 20 is supplied to the rolling bearing 1 from, for example, a lubricant supply means. In this case, the lubricant 20 is supplied to the inner ring raceway surface 21. Then, the lubricant 20 moves outward in the radial direction by the centrifugal force of the inner ring 3 rotating at a high speed, and a part of the lubricant 20 is supplied from the intake port 23 of the through hole 15 into the through hole 15 and the through hole 15. And is supplied from the discharge port 24 of the through hole 15 to the vicinity of the outer ring raceway surface 22. Thereafter, the inner ring surface 10 of the outer ring 2 is moved along the axial direction, and the region A and the outer ring raceway surface of the inner ring surface of the outer ring 2 that are guided by contact with the annular surface 9 of the first annular portion 11A of the cage 5. 22 and the entire inner diameter surface of the outer ring 2 is moderately lubricated.

保持器５は外輪案内型であり、内輪３の回転に伴なって第１環状部１１Ａの環状面９が外輪２の内径面１０に摺動案内される。このとき、上述のように貫通孔１５から適量の潤滑剤２０が外輪２の内径面１０の領域Ａに供給されているため、保持器５は円滑に外輪２の内径面１０に案内される。   The cage 5 is an outer ring guide type, and the annular surface 9 of the first annular portion 11 </ b> A is slidably guided to the inner diameter surface 10 of the outer ring 2 as the inner ring 3 rotates. At this time, since the appropriate amount of the lubricant 20 is supplied from the through hole 15 to the region A of the inner diameter surface 10 of the outer ring 2 as described above, the cage 5 is smoothly guided to the inner diameter surface 10 of the outer ring 2.

このように、保持器５の第２環状部１１Ｂに貫通孔１５を形成することにより、外輪２の内径面に直接的に潤滑剤２０を供給しなくても、内輪軌道面２１に供給した潤滑剤２０が外輪２の内径面に供給される。このため、特別に外輪２の内径面に潤滑剤２０を供給するための手段を設けることなくてよく、保持器５に貫通孔１５を形成するといった簡単な構成でもって保持器５およびころ４が接触して回転する外輪２の内径面の潤滑を行うことができ焼きつきを防止することができる。   Thus, by forming the through hole 15 in the second annular portion 11B of the cage 5, the lubrication supplied to the inner ring raceway surface 21 without supplying the lubricant 20 directly to the inner diameter surface of the outer ring 2 is achieved. The agent 20 is supplied to the inner diameter surface of the outer ring 2. For this reason, it is not necessary to provide a means for supplying the lubricant 20 to the inner diameter surface of the outer ring 2 in particular, and the cage 5 and the roller 4 can be formed with a simple configuration in which the through hole 15 is formed in the cage 5. Lubrication can be performed on the inner diameter surface of the outer ring 2 that rotates in contact with the outer ring 2, and seizure can be prevented.

保持器５の形状は上記実施形態に限定されない。図５の斜視図に別の実施形態を示す。この転がり軸受１は、内輪３と、外輪２と、内輪３および外輪２の間に転動自在に配置される複数のころ４と、これらころ４を保持する保持器５とを備えている。   The shape of the cage 5 is not limited to the above embodiment. Another embodiment is shown in the perspective view of FIG. The rolling bearing 1 includes an inner ring 3, an outer ring 2, a plurality of rollers 4 that are arranged so as to freely roll between the inner ring 3 and the outer ring 2, and a cage 5 that holds these rollers 4.

保持器５は、外輪２の内径面１０に案内される環状面９を有する環状部３０を軸方向両側に有し、環状部３０どうしは、ころ４が装着されるポケット８間の柱部１３を介して連結された構成である。   The cage 5 has annular portions 30 having annular surfaces 9 guided by the inner diameter surface 10 of the outer ring 2 on both sides in the axial direction, and the annular portions 30 are column portions 13 between the pockets 8 in which the rollers 4 are mounted. It is the structure connected via.

柱部１３の周方向所定位置で、かつ環状部３０近傍に、柱部１３の内径面１３ａから外径面１３ｂに貫通する貫通孔１５が形成されている。図において、貫通孔１５は柱部１３のほぼ周方向中央、つまり、周方向隣り合うポケット８のほぼ中間領域に配置されている。貫通孔１５の構成は、上記実施形態と同様である。   A through hole 15 penetrating from the inner diameter surface 13 a of the column portion 13 to the outer diameter surface 13 b is formed at a predetermined position in the circumferential direction of the column portion 13 and in the vicinity of the annular portion 30. In the figure, the through-hole 15 is disposed in the substantially circumferential center of the column portion 13, that is, in a substantially intermediate region between the pockets 8 adjacent in the circumferential direction. The structure of the through-hole 15 is the same as that of the said embodiment.

この構成を有した保持器５においても、上記実施形態と同様に、保持器５は外輪案内型であり、内輪３の回転に伴なって環状部３０の環状面９が外輪２の内径面を摺動する。このとき、貫通孔１５から適量の潤滑剤２０が外輪２の内径面１０に供給されているため、保持器５は円滑に外輪２の内径面１０に案内され、保持器５の焼きつきを防止することができる。   Also in the cage 5 having this configuration, the cage 5 is an outer ring guide type as in the above-described embodiment, and the annular surface 9 of the annular portion 30 changes the inner diameter surface of the outer ring 2 as the inner ring 3 rotates. Slide. At this time, since an appropriate amount of the lubricant 20 is supplied from the through hole 15 to the inner diameter surface 10 of the outer ring 2, the cage 5 is smoothly guided to the inner diameter surface 10 of the outer ring 2 and prevents the cage 5 from seizing. can do.

本発明の最良の形態の転がり軸受の全体構成を示す斜視図The perspective view which shows the whole structure of the rolling bearing of the best form of this invention 同じく保持器の一部拡大斜視図Similarly, a partially enlarged perspective view of the cage 同じく保持器の使用状態を示す断面図Sectional drawing which similarly shows the use condition of a cage 同じく転がり軸受の拡大側面図Similarly, an enlarged side view of a rolling bearing 他の形態の転がり軸受の全体構成を示す斜視図The perspective view which shows the whole structure of the rolling bearing of another form.

符号の説明Explanation of symbols

１ 転がり軸受
２ 外輪
５ 保持器
８ ポケット
１１ 環状部
１３ 柱部
１５ 貫通孔
２０ 潤滑剤 DESCRIPTION OF SYMBOLS 1 Rolling bearing 2 Outer ring 5 Cage 8 Pocket 11 Annular part 13 Column part 15 Through-hole 20 Lubricant

Claims (3)

保持器が外輪の内径面に案内される転がり軸受であって、
当該保持器はポケット間に介在する柱部と、この柱部の軸方向両側に設けられかつ当該両側から外径側に環状に突出する部分を備える一対の環状部とを備え、柱部および環状部の少なくとも一方に、径方向に貫通して潤滑剤を内径側から外径側に供給する貫通孔が形成されている、ことを特徴とする転がり軸受。 A rolling bearing in which the cage is guided on the inner surface of the outer ring,
The retainer includes a pillar portion interposed between the pockets, and a pair of annular portions that are provided on both sides in the axial direction of the pillar portion and that protrude in an annular shape from the opposite sides to the outer diameter side. A rolling bearing characterized in that a through-hole is formed in at least one of the parts to penetrate in the radial direction and supply the lubricant from the inner diameter side to the outer diameter side. 当該環状部が、ポケットの軸方向外側において柱部と面一とされる部分を備え、この部分に当該貫通孔が形成されている、ことを特徴とする請求項１に記載の転がり軸受。   The rolling bearing according to claim 1, wherein the annular portion includes a portion that is flush with the column portion on the axially outer side of the pocket, and the through hole is formed in this portion. 当該貫通孔が、柱部のほぼ周方向中央に形成されている、ことを特徴とする請求項１に記載の転がり軸受。   The rolling bearing according to claim 1, wherein the through hole is formed substantially at the center in the circumferential direction of the column portion.
JP2003335033A 2003-09-26 2003-09-26 Roller bearing Expired - Fee Related JP4341743B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003335033A JP4341743B2 (en) 2003-09-26 2003-09-26 Roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003335033A JP4341743B2 (en) 2003-09-26 2003-09-26 Roller bearing

Publications (2)

Publication Number Publication Date
JP2005098453A true JP2005098453A (en) 2005-04-14
JP4341743B2 JP4341743B2 (en) 2009-10-07

Family

ID=34462527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003335033A Expired - Fee Related JP4341743B2 (en) 2003-09-26 2003-09-26 Roller bearing

Country Status (1)

Country Link
JP (1) JP4341743B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007039667A (en) * 2005-06-28 2007-02-15 Nsk Ltd Resin composition, roller bearing holder
DE102014212076A1 (en) * 2014-06-24 2015-12-24 Aktiebolaget Skf Bearing cage for a roller bearing, in particular for a tapered roller bearing
CN107269708A (en) * 2017-07-05 2017-10-20 徐州博丰轴承有限公司 A kind of rolling bearing retainer
KR20180007813A (en) * 2016-07-14 2018-01-24 한화테크윈 주식회사 Rolling bearing
CN110159658A (en) * 2019-06-21 2019-08-23 沈阳建筑大学 A kind of retainer for grease lubrication full ceramic ball bearing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007039667A (en) * 2005-06-28 2007-02-15 Nsk Ltd Resin composition, roller bearing holder
DE102014212076A1 (en) * 2014-06-24 2015-12-24 Aktiebolaget Skf Bearing cage for a roller bearing, in particular for a tapered roller bearing
KR20180007813A (en) * 2016-07-14 2018-01-24 한화테크윈 주식회사 Rolling bearing
KR102138764B1 (en) * 2016-07-14 2020-07-28 한화에어로스페이스 주식회사 Rolling bearing
CN107269708A (en) * 2017-07-05 2017-10-20 徐州博丰轴承有限公司 A kind of rolling bearing retainer
CN110159658A (en) * 2019-06-21 2019-08-23 沈阳建筑大学 A kind of retainer for grease lubrication full ceramic ball bearing

Also Published As

Publication number Publication date
JP4341743B2 (en) 2009-10-07

Similar Documents

Publication Publication Date Title
EP2787231B1 (en) Prong type cage for double row roller bearing and double row roller bearing
US6443623B2 (en) Lubrication system for rolling bearing
JP2008240796A (en) Angular contact ball bearing with seal, and spindle device
JP2003314558A (en) Retainer of radial ball bearing
JP4929605B2 (en) Rolling bearing and camshaft device
JPH112250A (en) Self-aligning roller bearing
JP2006266277A (en) Self-aligning roller bearing with cage
JP4341743B2 (en) Roller bearing
JP2007024292A (en) Spinning support
JP5321052B2 (en) Rolling bearing device
JP2001304271A (en) Double row roller bearing
JP2006250222A (en) Thrust roller bearing
JP2012246972A (en) Roller thrust bearing
JP2000120707A (en) Rolling bearing
JP2006200675A (en) Roller bearing and bearing oil supply method
KR101404790B1 (en) A ball supporting structure and ball bearing using the same
JP2009180239A (en) Radial rolling bearing
JP2003120683A (en) Thrust roller bearing
JP2003254338A (en) Conical roller bearing
JP2009281395A (en) Rolling bearing
JP2007187207A (en) Thrust roller bearing
JP2003120684A (en) Thrust roller bearing
JP2004019858A (en) Machined cage for rolling bearing, and rolling bearing
JP2005180671A (en) Cage for ball bearing
JP2005337349A (en) Bearing device and main spindle device using it

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060825

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070828

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20070830

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071029

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080304

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080507

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20080805

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080904

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20081113

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20081120

A912 Removal of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A912

Effective date: 20090123

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090630

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120717

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120717

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130717

Year of fee payment: 4

LAPS Cancellation because of no payment of annual fees