JP3564434B2 - Roller bearing cage - Google Patents

Roller bearing cage Download PDF

Info

Publication number
JP3564434B2
JP3564434B2 JP2001214862A JP2001214862A JP3564434B2 JP 3564434 B2 JP3564434 B2 JP 3564434B2 JP 2001214862 A JP2001214862 A JP 2001214862A JP 2001214862 A JP2001214862 A JP 2001214862A JP 3564434 B2 JP3564434 B2 JP 3564434B2
Authority
JP
Japan
Prior art keywords
roller
diameter side
strip
shaped steel
outer diameter
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 - Lifetime
Application number
JP2001214862A
Other languages
Japanese (ja)
Other versions
JP2002115723A (en
Inventor
正 深尾
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 JP2001214862A priority Critical patent/JP3564434B2/en
Publication of JP2002115723A publication Critical patent/JP2002115723A/en
Application granted granted Critical
Publication of JP3564434B2 publication Critical patent/JP3564434B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/54—Cages for rollers or needles made from wire, strips, or sheet metal
    • F16C33/542—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal
    • F16C33/543—Cages for rollers or needles made from wire, strips, or sheet metal made from sheet metal from a single part
    • 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
    • F16C33/54—Cages for rollers or needles made from wire, strips, or sheet metal
    • F16C33/541—Details of individual pockets, e.g. shape or roller retaining means
    • 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
    • F16C33/6651—Retaining the liquid in or near the bearing in recesses or cavities provided in retainers, races or 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/42—Groove sizes

Landscapes

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

Description

【０００１】
【発明の属する技術分野】
本発明は、ころ軸受用保持器に関する。
【０００２】
【従来の技術】
従来、帯状鋼板の長手方向所定間隔おきに長方形のポケットを打ち抜き形成して、これら隣り合うポケット間の柱部のころ当たり面の内・外径側部分をコイニング加工により周方向に突出するよう塑性変形させてから、帯状鋼板を円筒形に丸めて端部を溶接する、といった手順で製作されるころ軸受用保持器がある。
【０００３】
前述のコイニング加工は、例えば図６に示すように、帯状鋼板５０において対象となる柱部５２の両側のポケット５１，５１に二つ一対の工具５５，５５を挿入し、これら工具５５，５５それぞれで柱部５２を周方向両側からつまんで圧縮させるものである。このコイニング加工を施すと、柱部５２の側面に両工具５５，５５の凸部５５ａ，５５ａに対応する凹み５２ａ，５２ａが転写形成されるとともに、この凹みに伴い柱部５２の内・外径側部分が塑性変形して周方向に突出させられるようになる。この突出した部分に符号５３，５４を付してある。
【０００４】
【発明が解決しようとする課題】
上述したような構造のころ軸受用保持器において、柱部５２の内側面でころ５６を案内させるが、この案内のために柱部５２の内側面に対してころ５６が線接触するようになり、ころ５６の周面に形成される潤滑剤油膜がかきとられやすくなるなど、異常発熱や焼き付きなどの不具合が発生しやすくなる。
【０００５】
本発明はこのような事情に鑑みてなされたもので、ころの周面へ潤滑剤を転移供給できるようにし、油膜形成と耐久性の向上とを図ることを課題とする。
【０００６】
【課題を解決するための手段】
本発明のころ軸受用保持器は、請求項１に示すように、帯状鋼板のころ保持用のポケットに相当する部分の軸方向両側部分を一面側に膨出させるとともにさらに幅方向中間領域を長手方向全長にわたって一面側へ膨出させてから、この帯状鋼板の長手方向所定間隔おきにころ保持用のポケットを前記一面側から打ち抜き形成し、次いで前記ポケット間の柱部において少なくとも反膨出側端縁をコイニング加工によりころ抜け防止用の突出部として塑性変形した後、この帯状鋼板の膨出部分を外径側に位置させる状態で、当該帯状鋼板を丸棒状の型に巻き付けることにより円筒形に丸めて、その長手方向両端を溶接にて接合することにより、製作されてなるとともに、前記柱部のコイニング加工では、前記柱部の軸方向両端側部分を、その周方向幅寸法が外径側から内径側へ向けて幅狭となってから徐々に幅広となるように形成するとともに、前記柱部の軸方向中間部分の周方向幅寸法が内径側から外径側へ向けて幅広となるように形成していることを特徴としている。
【０００８】
さらに、本発明のころ軸受用保持器は、請求項２に示すように、上記請求項１の構成において、接合された帯状鋼板の長手方向両端部分がそれぞれ端縁側へ向けて厚みを漸次薄くするようにテーパ状に面取りされていることを特徴としている。
【０００９】
【作用】
柱部の内側面に設けてある複数の微小凹部に潤滑油が溜まるようになっているから、この内側面に対してころが摺接すると、微小凹部内の潤滑剤がころの周面へ転移供給されるようになり、このころの周面に潤滑剤油膜が形成されるようになる。これはころが１回転する毎に行われる。このため、ころと柱部との摺接部位の潤滑状態が良好となり、異常な温度上昇や摩耗を防げるようになる。
【００１０】
【発明の実施の形態】
以下、本発明を図１ないし図５に示す実施形態に基づいて詳細に説明する。図例のころ軸受用保持器１は、軸方向中間部分の全周が外方へ膨出した円筒形に形成されており、その円周数箇所には平面視ほぼ長方形のポケット２・・・が前記膨出部分からその軸方向両側部分にまたがって形成されている。
【００１１】
このポケット２それぞれを分離する柱部３・・・は、コイニング加工が施されていて、この柱部３の軸方向中間部分Ａの断面は図３に示すように逆さ台形状に、また、柱部３の軸方向両側部分Ｂ，Ｃの断面は図４に示すようにあたかも鼓を立てたような形状にそれぞれ形成されている。つまり、柱部３の軸方向中間部分Ａの周方向幅寸法は外径側へ向けて徐々に幅広となるように形成されており、この柱部３の軸方向中間部分Ａの内側面の外径側には図２に示すように周方向へ舌片状に突出する突片４が設けられている。また、柱部３の軸方向両側部分Ｂ，Ｃの周方向幅寸法は外径側から内径側へ向けて厚み約１／３だけ幅狭となってから残り２／３が徐々に幅広となるように形成されており、換言すれば柱部３の軸方向両側部分Ｂ，Ｃの内側面の内径側は周方向に突出したようになっている。
【００１２】
すなわち、隣り合う柱部３の軸方向中間部分Ａの突片４それぞれの間隔がころ５の直径寸法よりも小さくなっていて、ころ５の外径側への抜け出しを防止するようになっている。また、隣り合う柱部３の軸方向両側部分Ｂ，Ｃの内径側テーパ面それぞれの間隔がころ５の直径寸法よりも小さくなっていて、ころ５の内径側への抜け出しを防止するようになっている。
【００１３】
そして、柱部３の軸方向中間部分Ａおよび軸方向両側部分Ｂ，Ｃの内側面のころ摺接面もしくは全面には、微小凹部６が設けられており、使用時にはここに潤滑剤が溜まるようになる。つまり、柱部３の内側面にころ５が摺接すると、これら微小凹部６に溜まる潤滑剤がころ５の周面へ転移供給されるようになり、ころ５の周面に潤滑剤油膜が形成されるようになる。これはころ５が１回転する毎に行われる。このため、ころ５と柱部３との摺接部位の潤滑状態が良好となり、異常な温度上昇や摩耗を防げるようになる。
【００１４】
このようなころ軸受用保持器１の製造方法を簡単に説明する。
【００１５】
まず、柱部３のコイニング前の処理として、帯状鋼板をコイニング時の塑性変形に伴う内径側への張り出しが、保持器両端の環状部の内周面よりも内径側へ突出しないように、前記張り出し量を見込んで、柱部３の軸方向両側部分Ｂ，Ｃを外径側へ膨出させて内径側をｈ１だけ浮かせている〔図５（ａ）参照〕。膨出部には３ｘを付してある。このように形成された帯状鋼板を適当長さに切断し、幅方向中間部分を全長にわたって一面側へ膨出させておいて、その長手方向数箇所をパンチ加工治具で打ち抜くことにより複数のポケット２を得る〔図５（ｂ）参照〕。このとき、同時に突片４の形状を加工する。
【００１６】
この後、各柱部３をコイニング加工（従来例の図６参照）する。コイニング加工により、柱部３の軸方向中間部分Ａおよび軸方向両側部分Ｂ，Ｃを図３，図４に示すような形状とするとともに、柱部３の内側面に複数の微小凹部６を形成する〔図５（ｃ）参照〕。なお、微小凹部６は、コイニング加工に用いる工具の圧縮加工面に設けられる突起から転写形成される。このコイニング加工を行うと、柱部３の軸方向全体の内・外径側部分が径方向内・外へ僅かに張り出すことになるが、前述のように内径側を浮かせているので、内径側へ張り出しても前述の浮かせていた寸法ｈ１がｈ２にと小さくなるだけで済む。なお、このような内径側への張り出しを防止する処理を行わずに、張り出しを発生させている場合、後述する丸め加工時において帯状鋼板の円筒形状がくずれることになる。
【００１７】
そして、帯状鋼板を円筒形に丸めて端部を溶接することにより、完成となる。この丸め加工時には、丸棒状の受け型（図示省略）に対して帯状鋼板を巻き付けるようにして行うのであるが、この場合、帯状鋼板の両端面に「バリ」などの張り出しがあると、前述のコイニング加工時の張り出しと同様にこの張り出しによって受け型の周面から帯状鋼板が浮き上がるなどして形状くずれが生じることになる。このことを考慮して、本実施形態では、図１に示すように、接合部７となる帯状鋼板端縁の内径側をテーパ状に面取りすることにより、帯状鋼板を受け型へ巻き付けた状態の円筒形状を維持できるようにしている。
【００１８】
本発明においては、内径側のころ止め部をコイニング加工による塑性加工面、すなわちころ摺接面に延長して形成する一方、外径側のころ止め部（突片４）は、コイニング加工による塑性加工面すなわちころ摺接面とは別に、ポケット形成時に同時にパンチ加工により形成している。これにより、塑性加工においては、ポケットの周方向の開口端を厳密に管理できない欠点をカバーし、比較的精度が出しやすいパンチ加工により突片４を形成しているので、ポケットへのころのスナップインが確実に行われる。しかしながら、コイニング加工の精度管理によっては、内径側と同じように外径側も突片４なしでそのまま塑性加工面に連続してころ止め部を形成してもよい。
【００１９】
なお、本発明は上記実施形態のみに限定されない。例えば、微小凹部６は、柱部３の内側面のうち軸方向両側部分Ｂ，Ｃの内側テーパ面に形成するだけでも効果がある。
【００２０】
【発明の効果】
以上説明したように、本発明では、使用時に柱部の内側面にころが接触したときにころの周面へ微小凹部内の潤滑剤が転移供給されるようにしているから、ころの周面に潤滑剤油膜が途切れなく形成されるようになり、ころと柱部の摺接部位の潤滑状態を長期的に良好にできる。したがって、この保持器を用いた場合、ころ軸受の回転抵抗をほぼ一定に維持できるようになり、異常発熱や焼き付きの発生を未然に防止できるようになる。
【図面の簡単な説明】
【図１】本発明の一実施形態に係るころ軸受用保持器の側面図
【図２】図１の（２）−（２）線断面図
【図３】図２の（３）−（３）線断面図
【図４】図２の（４）−（４）線断面図
【図５】図１のころ軸受用保持器の形成過程を示す側面図
【図６】従来のころ軸受用保持器に対するコイニング加工の形態を示す側面図
【符号の説明】
１ 保持器
２ ポケット
３ 柱部
５ ころ
６ 微小凹部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a roller bearing retainer.
[0002]
[Prior art]
Conventionally, rectangular pockets are punched out at predetermined intervals in the longitudinal direction of a strip-shaped steel plate, and the inner and outer diameter side portions of the roller contact surface of the pillar portion between these adjacent pockets are plastically formed so as to project in the circumferential direction by coining. There is a roller bearing retainer manufactured by a procedure in which, after being deformed, a belt-shaped steel plate is rolled into a cylindrical shape and the ends are welded.
[0003]
In the coining process described above, for example, as shown in FIG. 6, two pairs of tools 55, 55 are inserted into pockets 51, 51 on both sides of a target column portion 52 in a strip-shaped steel plate 50, and these tools 55, 55 are respectively provided. The pin 52 is pinched from both sides in the circumferential direction and compressed. When this coining process is performed, dents 52a, 52a corresponding to the protrusions 55a, 55a of both tools 55, 55 are transferred and formed on the side surfaces of the column 52, and the inner and outer diameters of the column 52 are associated with the dents. The side portions are plastically deformed so that they protrude in the circumferential direction. The protruding portions are denoted by reference numerals 53 and 54.
[0004]
[Problems to be solved by the invention]
In the roller bearing retainer having the above-described structure, the rollers 56 are guided by the inner surface of the column 52, and the rollers 56 come into line contact with the inner surface of the column 52 for this guide. In addition, the lubricant oil film formed on the peripheral surface of the roller 56 is easily scraped off, and problems such as abnormal heat generation and burn-in are likely to occur.
[0005]
The present invention has been made in view of such circumstances, and it is an object of the present invention to make it possible to transfer and supply a lubricant to a peripheral surface of a roller, and to form an oil film and improve durability.
[0006]
[Means for Solving the Problems]
The roller bearing retainer according to the present invention, as described in claim 1 , expands both sides in the axial direction of a portion corresponding to the roller holding pocket of the strip-shaped steel sheet to one side and further extends the widthwise intermediate region. After swelling to the one surface side over the entire length in the direction, pockets for holding the rollers are formed by punching from the one surface side at predetermined intervals in the longitudinal direction of the strip-shaped steel plate, and then at least the anti-swelling side ends at the column portions between the pockets. After the edge is plastically deformed as a protrusion for preventing the roller from slipping off by coining, the strip-shaped steel sheet is wound into a round bar-shaped mold in a state where the swollen portion of the strip-shaped steel sheet is positioned on the outer diameter side, thereby forming a cylindrical shape. rounding, by joining its longitudinal ends by welding, it becomes to be fabricated, the coining of the pillar portion, the axial end portion of the pillar portion, the circumferential direction The width is gradually reduced from the outer diameter side to the inner diameter side and then gradually increased, and the circumferential width of the axially intermediate portion of the column is changed from the inner diameter side to the outer diameter side. It is characterized in that it is formed so as to be wider toward it .
[0008]
Furthermore, the roller bearing cage of the present invention, as shown in claim 2, in the configuration of the first aspect, longitudinal end portions of the joined steel strip is gradually made thinner toward the respective end edge It is characterized by being chamfered in a tapered shape as described above.
[0009]
[Action]
Lubricating oil accumulates in a plurality of minute recesses provided on the inner surface of the column, so when the roller slides against this inner surface, the lubricant in the minute recess transfers to the peripheral surface of the roller. As a result, the lubricant oil film is formed on the peripheral surface of the roller. This is performed each time the roller makes one revolution. For this reason, the lubrication state of the sliding contact portion between the roller and the column portion is improved, and abnormal temperature rise and wear can be prevented.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail based on the embodiments shown in FIGS. The roller bearing retainer 1 in the illustrated example is formed in a cylindrical shape in which the entire periphery of the axially intermediate portion bulges outward, and has pockets 2. Are formed from the bulging portion to both axial side portions thereof.
[0011]
The pillars 3 separating the pockets 2 are subjected to coining. The cross section of the axially intermediate portion A of the pillars 3 has an inverted trapezoidal shape as shown in FIG. As shown in FIG. 4, the cross-sections of the axially opposite side portions B and C of the portion 3 are each formed in a shape like a drum. That is, the circumferential width of the axially intermediate portion A of the column 3 is formed so as to gradually increase toward the outer diameter side. On the radial side, as shown in FIG. 2, there is provided a projecting piece 4 which projects in a tongue shape in the circumferential direction. In addition, the circumferential widths of the axially opposite portions B and C of the column portion 3 become narrower by about 1/3 in thickness from the outer diameter side to the inner diameter side, and the remaining 2/3 gradually become wider. In other words, the inner diameter sides of the inner side surfaces of the axial side portions B and C of the column portion 3 project in the circumferential direction.
[0012]
That is, the interval between the protruding pieces 4 of the axially intermediate portion A of the adjacent pillar portion 3 is smaller than the diameter of the roller 5 to prevent the roller 5 from coming off to the outer diameter side. . In addition, the interval between the inner diameter side tapered surfaces of the axially opposite side portions B and C of the adjacent pillar portion 3 is smaller than the diameter dimension of the roller 5, so that the roller 5 can be prevented from coming off to the inner diameter side. ing.
[0013]
A minute concave portion 6 is provided on the roller sliding contact surface or the entire inner surface of the axially intermediate portion A and the axially opposite side portions B and C of the column portion 3 so that the lubricant can accumulate therein when used. become. In other words, when the roller 5 slides on the inner surface of the pillar portion 3, the lubricant accumulated in the minute concave portions 6 is transferred and supplied to the peripheral surface of the roller 5, and a lubricant oil film is formed on the peripheral surface of the roller 5. Will be done. This is performed every time the roller 5 makes one rotation. For this reason, the lubrication state of the sliding contact portion between the roller 5 and the column portion 3 is improved, and abnormal temperature rise and wear can be prevented.
[0014]
A method for manufacturing such a roller bearing cage 1 will be briefly described.
[0015]
First, as a process before coining of the column portion 3, the overhang of the belt-shaped steel plate to the inner diameter side due to plastic deformation at the time of coining does not project to the inner diameter side than the inner peripheral surface of the annular portion at both ends of the retainer. In consideration of the overhang amount, the axially opposite side portions B and C of the column portion 3 are bulged to the outer diameter side, and the inner diameter side is floated by h1 (see FIG. 5A). The bulge is marked with 3x. The band-shaped steel sheet thus formed is cut into an appropriate length, the widthwise intermediate portion is swelled to one side over the entire length, and a plurality of pockets are punched out by punching several portions in the lengthwise direction with a punching jig. 2 (see FIG. 5B). At this time, the shape of the projecting piece 4 is simultaneously processed.
[0016]
Thereafter, each pillar 3 is coined (see FIG. 6 of the conventional example). By the coining process, the axial middle portion A and the axial side portions B and C of the column 3 are shaped as shown in FIGS. 3 and 4, and a plurality of minute recesses 6 are formed on the inner surface of the column 3. (See FIG. 5C). Note that the minute concave portion 6 is formed by transfer from a projection provided on a compression processing surface of a tool used for coining. When this coining process is performed, the inner and outer diameter side portions of the entire column portion 3 in the axial direction slightly protrude inward and outward in the radial direction, but since the inner diameter side is floated as described above, the inner diameter is raised. Even if it protrudes to the side, the above-mentioned floating dimension h1 only needs to be reduced to h2. In the case where the overhang is generated without performing the process of preventing the overhang to the inner diameter side, the cylindrical shape of the strip-shaped steel sheet is broken at the time of rounding described later.
[0017]
Then, the belt-shaped steel plate is rolled into a cylindrical shape and the ends are welded to complete the process. At the time of this rounding, the band-shaped steel plate is wound around a round bar-shaped receiving die (not shown). In this case, if there is an overhang such as “burr” on both end surfaces of the band-shaped steel plate, As in the case of the overhang during coining, the overhang causes the strip-shaped steel sheet to rise from the peripheral surface of the receiving mold, causing shape deformation. In consideration of this, in the present embodiment, as shown in FIG. 1, the strip-shaped steel sheet is wound around a receiving mold by chamfering the inner diameter side of the edge of the strip-shaped steel sheet serving as the joint 7 into a tapered shape. The cylindrical shape can be maintained.
[0018]
In the present invention, the roller stopper on the inner diameter side is formed by extending the plastic working surface by coining, that is, the roller sliding contact surface, while the roller stopper on the outer diameter side (projection piece 4) is formed by plasticizing by coining. Apart from the processing surface, that is, the roller sliding contact surface, it is formed by punching at the same time when the pocket is formed. As a result, in the plastic working, the protruding piece 4 is formed by punching, which covers the disadvantage that the opening end in the circumferential direction of the pocket cannot be strictly controlled. In is performed reliably. However, depending on the precision control of the coining process, the roller stopper may be formed continuously on the plastic working surface without the protruding piece 4 on the outer diameter side as well as the inner diameter side.
[0019]
Note that the present invention is not limited to only the above embodiment. For example, it is effective to form the minute concave portions 6 only on the inner tapered surfaces of the axially opposite side portions B and C on the inner side surface of the column portion 3 .
[0020]
【The invention's effect】
As described above, in the present invention, when the rollers come into contact with the inner surfaces of the pillars during use, the lubricant in the minute recesses is transferred and supplied to the peripheral surfaces of the rollers. As a result, the lubricant oil film is formed without interruption, and the lubricating state of the sliding contact portion between the roller and the column can be improved over a long period of time. Therefore, when this cage is used, the rotational resistance of the roller bearing can be maintained substantially constant, and the occurrence of abnormal heat generation and image sticking can be prevented.
[Brief description of the drawings]
FIG. 1 is a side view of a roller bearing cage according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line (2)-(2) in FIG. 1. FIG. FIG. 4 is a sectional view taken along line (4)-(4) of FIG. 2. FIG. 5 is a side view showing a process of forming the roller bearing retainer of FIG. 1. FIG. 6 is a conventional roller bearing retainer. Side view showing the form of coining processing for the container
DESCRIPTION OF SYMBOLS 1 Cage 2 Pocket 3 Column part 5 Roller 6 Micro concave

Claims (2)

帯状鋼板のころ保持用のポケットに相当する部分の軸方向両側部分を一面側に膨出させるとともにさらに幅方向中間領域を長手方向全長にわたって一面側へ膨出させてから、この帯状鋼板の長手方向所定間隔おきにころ保持用のポケットを前記一面側から打ち抜き形成し、次いで前記ポケット間の柱部において少なくとも反膨出側端縁をコイニング加工によりころ抜け防止用の突出部として塑性変形した後、この帯状鋼板の膨出部分を外径側に位置させる状態で、当該帯状鋼板を丸棒状の型に巻き付けることにより円筒形に丸めて、その長手方向両端を溶接にて接合することにより、製作されてなるとともに、
前記柱部のコイニング加工では、前記柱部の軸方向両端側部分を、その周方向幅寸法が外径側から内径側へ向けて幅狭となってから徐々に幅広となるように形成するとともに、前記柱部の軸方向中間部分の周方向幅寸法が内径側から外径側へ向けて幅広となるように形成していることを特徴とするころ軸受用保持器。After swelling both sides in the axial direction of the portion corresponding to the roller holding pockets of the strip-shaped steel sheet to the one side and further swelling the widthwise intermediate region to the one side over the entire length in the longitudinal direction, the longitudinal direction of the strip-shaped steel sheet At predetermined intervals, a roller holding pocket is punched and formed from the one surface side, and then at least a pillar portion between the pockets is plastically deformed as a protrusion for preventing a roller from slipping out by coining at least an anti-bulging side edge, the bulge portion of the steel strip in a state to be positioned on the outer diameter side, the steel strip is rounded into a cylindrical shape by winding on the type of round bar, by joining its longitudinal ends by welding, it is manufactured Along with
In the coining process of the pillar, both ends in the axial direction of the pillar are formed so that the circumferential width is gradually reduced from the outer diameter side toward the inner diameter side, and then gradually increased. A roller bearing retainer , wherein a circumferential width of an intermediate portion in the axial direction of the pillar portion is formed to be wider from an inner diameter side to an outer diameter side . 前記接合された帯状鋼板の長手方向両端部分が、それぞれ端縁側へ向けて厚みを漸次薄くするようにテーパ状に面取りされていることを特徴とする請求項１記載のころ軸受用保持器。 2. The roller bearing retainer according to claim 1, wherein both longitudinal end portions of the joined strip-shaped steel plate are tapered in a tapered shape so as to gradually reduce the thickness toward an edge .
JP2001214862A 2001-07-16 2001-07-16 Roller bearing cage Expired - Lifetime JP3564434B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001214862A JP3564434B2 (en) 2001-07-16 2001-07-16 Roller bearing cage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001214862A JP3564434B2 (en) 2001-07-16 2001-07-16 Roller bearing cage

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP26468292A Division JP3698735B2 (en) 1992-10-02 1992-10-02 Method for manufacturing roller bearing cage

Publications (2)

Publication Number Publication Date
JP2002115723A JP2002115723A (en) 2002-04-19
JP3564434B2 true JP3564434B2 (en) 2004-09-08

Family

ID=19049616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001214862A Expired - Lifetime JP3564434B2 (en) 2001-07-16 2001-07-16 Roller bearing cage

Country Status (1)

Country Link
JP (1) JP3564434B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105710254A (en) * 2014-08-15 2016-06-29 常州市武滚轴承有限公司 Manufacturing method for bearing retainer of automobile steering device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5434451B2 (en) * 2009-10-06 2014-03-05 パナソニック株式会社 Coining mold and scroll compressor for metal
JP2014149076A (en) * 2013-01-10 2014-08-21 Nsk Ltd Retainer for radial needle bearing and manufacturing method thereof
CN117052795B (en) * 2023-08-31 2024-01-26 福赛轴承（嘉兴）有限公司 Bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105710254A (en) * 2014-08-15 2016-06-29 常州市武滚轴承有限公司 Manufacturing method for bearing retainer of automobile steering device

Also Published As

Publication number Publication date
JP2002115723A (en) 2002-04-19

Similar Documents

Publication Publication Date Title
KR0185696B1 (en) Cage for roller bearings and method for manufacturing the same
JP3585420B2 (en) Rolled product for chain and method of manufacturing the same
US8177435B2 (en) Manufacturing method of a drawn cup needle roller bearing having seal ring
US5826988A (en) Cage for needle roller bearings and method of producing same
JP3668274B2 (en) Roller with cage
US20110035943A1 (en) Method of manufacturing a split bearing ring
US8944696B2 (en) Cage for radial roller bearing
KR20100016249A (en) Rolling bearing cage composed of a plurality of parts
US20050254742A1 (en) Roller bearing and manufacturing method of cage thereof
JP6306326B2 (en) Needle roller bearing with double row cage
JP2001516644A (en) How to make a cage
US6485186B2 (en) Split bearing ring and method for manufacturing same
JP3564434B2 (en) Roller bearing cage
JP3698735B2 (en) Method for manufacturing roller bearing cage
JP3340807B2 (en) Roller bearing
JP2009287785A (en) Roller bearing retainer
JP2005308135A (en) Welding holder for roller bearing, and method for manufacturing the same
JP3030486B2 (en) Roller bearing cage
JP2007071344A (en) Outboard motor engine and crank shaft support structure for outboard motor engine
JP3628253B2 (en) Sealing device for roll neck bearing of rolling mill
WO2009087957A1 (en) Thrust roller bearing, and retainer therefor
JP2010025230A (en) Pressed cage, self-aligning roller bearing, and manufacturing method for pressed cage
JP2007263220A (en) Cage and roller
WO2023286527A1 (en) Roller bearing retainer and roller bearing
JP3350790B2 (en) Roller bearing cage

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040120

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040319

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040322

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040525

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040607

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

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

Free format text: PAYMENT UNTIL: 20080611

Year of fee payment: 4

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

Free format text: PAYMENT UNTIL: 20090611

Year of fee payment: 5

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

Free format text: PAYMENT UNTIL: 20100611

Year of fee payment: 6

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

Free format text: PAYMENT UNTIL: 20100611

Year of fee payment: 6

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

Free format text: PAYMENT UNTIL: 20110611

Year of fee payment: 7

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

Free format text: PAYMENT UNTIL: 20120611

Year of fee payment: 8

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

Free format text: PAYMENT UNTIL: 20120611

Year of fee payment: 8

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

Free format text: PAYMENT UNTIL: 20130611

Year of fee payment: 9

EXPY Cancellation because of completion of term
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130611

Year of fee payment: 9