JP2912532B2 - Needle roller with cage - Google Patents
Needle roller with cageInfo
- Publication number
- JP2912532B2 JP2912532B2 JP5269675A JP26967593A JP2912532B2 JP 2912532 B2 JP2912532 B2 JP 2912532B2 JP 5269675 A JP5269675 A JP 5269675A JP 26967593 A JP26967593 A JP 26967593A JP 2912532 B2 JP2912532 B2 JP 2912532B2
- Authority
- JP
- Japan
- Prior art keywords
- retainer
- notch
- needle
- roller
- 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
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
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
- F16C33/4676—Details of individual pockets, e.g. shape or roller retaining means of the stays separating adjacent cage pockets, e.g. guide means for the bearing-surface of the rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、種々の産業機械にお
ける軸受として、外部潤滑形式で使用される保持器付き
針状ころに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a needle roller with a cage used as an external lubrication type as a bearing in various industrial machines.
【０００２】[0002]
【従来の技術】保持器付き針状ころは、一般に内外輪を
設けずに、軸と他の部品との間に直接に介在させる軸受
として使用される。この保持器付き針状ころを、各種の
産業機械において、ケーシング内で潤滑油が飛散するよ
うな箇所に使用することがある。この場合、保持器付き
針状ころの潤滑は、その飛散する潤滑油を使用する潤滑
形式、いわゆる外部潤滑とされる。2. Description of the Related Art A needle roller with a retainer is generally used as a bearing directly interposed between a shaft and other parts without providing inner and outer rings. This needle roller with a retainer may be used in various industrial machines at locations where lubricating oil is scattered in a casing. In this case, lubrication of the needle rollers with the retainer is of a lubrication type using the scattered lubricating oil, so-called external lubrication.
【０００３】図８は、従来の保持器付き針状ころの一例
を示す。保持器５１は合成樹脂製の円筒状のものであ
り、周方向の複数箇所にころ５２を収容するポケット５
３を有している。ポケット５３の側面には、保持器５１
の内径側および外径側の開口縁にころ５２の落ち止め用
の突条５４，５５が設けられている。これら突条５４，
５５は、中間部に切欠５６，５７が設けられて両端側に
分割されている。FIG. 8 shows an example of a conventional needle roller with a retainer. The retainer 51 is a cylindrical member made of synthetic resin, and has pockets 5 for accommodating rollers 52 at a plurality of positions in the circumferential direction.
Three. A retainer 51 is provided on the side of the pocket 53.
Projecting ridges 54, 55 for preventing the rollers 52 from falling are provided on the opening edges on the inner diameter side and the outer diameter side. These ridges 54,
55 is provided with cutouts 56 and 57 at an intermediate portion and is divided at both ends.
【０００４】[0004]
【発明が解決しようとする課題】図８の保持器付き針状
ころを外部潤滑で使用する場合、遠心力の作用により、
潤滑油の流れは矢印で示すように保持器５１の内径側か
らポケット５３内に流入して外径側へ抜ける流れとな
る。しかし、ポケット５３は、両端において開口縁に突
条５４，５５が設けられて開口幅が狭くなっているた
め、端部付近で潤滑油の流れが悪くなり、潤滑油の供給
不足となることがある。特に、滑り摩擦となるころ端面
における潤滑不足が生じ易い。また、このように両端に
突条５４，５５があると、潤滑油と共に細かな塵埃がポ
ケット５３内に侵入した場合に、その塵埃がポケット５
３内で停滞し易い。これらのため、十分な潤滑作用およ
び軸受寿命を得ることが難しいという問題点がある。When the needle roller with a retainer shown in FIG. 8 is used for external lubrication, a centrifugal force acts on the needle roller.
The flow of the lubricating oil flows into the pocket 53 from the inner diameter side of the retainer 51 and escapes to the outer diameter side as indicated by the arrow. However, since the width of the pocket 53 is reduced by the provision of the ridges 54 and 55 at the opening edges at both ends, the flow of the lubricating oil is deteriorated near the end, and the lubricating oil supply may be insufficient. is there. In particular, insufficient lubrication is likely to occur at the roller end faces that cause sliding friction. Further, when the protrusions 54 and 55 are provided at both ends in this way, when fine dust enters the pocket 53 together with the lubricating oil, the dust is removed from the pocket 5.
3 tends to stagnate. For these reasons, there is a problem that it is difficult to obtain sufficient lubrication and bearing life.
【０００５】この発明の目的は、潤滑油の供給不良を改
善し、かつ塵埃の停滞を無くすことができて、潤滑作用
および軸受寿命の向上が図れる保持器付き針状ころを提
供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a needle roller with a cage capable of improving lubricating oil supply failure and eliminating dust stagnation, thereby improving lubrication and bearing life. .
【０００６】[0006]
【課題を解決するための手段】この発明の保持器付き針
状ころは、保持器の各ポケットの対向する側面にころ落
ち止め用の突条を設け、各ポケットの側面における中間
部と両端の周方向に切欠を設け、かつ前記保持器の外径
面に円周溝を設けたものである。円周溝は、中間部の切
欠に対応する位置とする。保持器は、樹脂製の円筒状の
ものであり、周方向複数箇所に設けた各ポケットに針状
のころを収容する。前記各突条は、ポケットの対向する
側面における保持器内径側および外径側の開口縁に設け
られ、前記中間部と両端の切欠の間に配置される。A needle roller with a retainer according to the present invention is provided with a ridge for preventing a roller from falling on opposing side surfaces of each pocket of the retainer, and an intermediate portion on the side surface of each pocket.
A notch is provided in the circumferential direction of the portion and both ends , and a circumferential groove is provided in an outer diameter surface of the retainer. The circumferential groove is located at a position corresponding to the notch in the middle part. The retainer has a cylindrical shape made of resin and accommodates needle rollers in pockets provided at a plurality of locations in the circumferential direction. Each of the ridges is provided at an opening edge on an inner diameter side and an outer diameter side of the cage on opposing side surfaces of the pocket, and is disposed between the intermediate portion and the notches at both ends.
【０００７】上記構成において、円周溝は、詳しくは中
間部の切欠の軸方向の幅寸法内で形成する。 上記構成に
おいて、外径側の突条を、内径側の突条に比べて軸方向
幅が狭くかつ突出高さが低いものとしても良い。また、
各ポケットの中間部の切欠を端部の切欠よりも深く形成
しても良い。[0007] In the above configuration, the circumferential groove is specifically a middle groove.
It is formed within the width of the notch in the axial direction in the axial direction. In the above SL configuration, the projection of the outer diameter side, may be low axial width narrower and projection height than the inner diameter side of the ridge. Also,
The notch at the middle of each pocket may be formed deeper than the notch at the end.
【０００８】[0008]
【作用】外部潤滑で使用する場合、遠心力の作用によ
り、潤滑油は保持器の内径側からポケット内に流入して
外径側へ流出する。このときに、ポケット側面の中間部
と両端との３箇所に切欠が設けられ、ころ落ち止め用の
突条は各切欠の間のみに位置するため、各切欠の部分で
潤滑油の流入および流出が良好に行われて、ポケット内
の全体に十分な量の潤滑油が供給される。特に、滑り摩
擦となるころ端面の付近への供給油量が増える。また、
保持器の外径面に円周溝が形成され、この円周溝は中間
部の切欠に対応して位置しているため、潤滑油の流出が
より一層行われ易くなり、外径側に突条があるにもかか
わらず、良好な流れが得られる。また、このようにポケ
ット内の全体における潤滑油の流れが良くなるため、潤
滑油中に塵埃が介在しても停滞することなく排出がスム
ーズに行われる。これらのため潤滑作用が向上し、塵埃
の多い使用箇所においても、優れた潤滑作用および軸受
寿命を得ることができる。When used with external lubrication, the lubricating oil flows into the pocket from the inner diameter side of the retainer and flows out to the outer diameter side by the action of centrifugal force. At this time, three notches are provided at the middle part and both ends of the side wall of the pocket, and the protrusions for preventing the roller from falling are located only between the notches, so that the lubricating oil flows in and out at each notch. Is performed well, and a sufficient amount of lubricating oil is supplied to the entire inside of the pocket. In particular, the amount of oil supplied to the vicinity of the roller end face causing sliding friction increases. Also,
A circumferential groove is formed on the outer diameter surface of the retainer, and the circumferential groove is located corresponding to the notch in the intermediate portion, so that the lubricating oil can flow out more easily, and the lug projects toward the outer diameter side. Despite the presence of a strip, good flow is obtained. In addition, since the flow of the lubricating oil in the entire pocket is improved in this way, even if dust is interposed in the lubricating oil, the lubricating oil is smoothly discharged without stagnation. For these reasons, the lubricating action is improved, and excellent lubricating action and bearing life can be obtained even in a use location where there is a lot of dust.
【０００９】外径側の突条を、内径側の突条に比べて軸
方向幅が狭くかつ突出高さが低いものとした場合は、ポ
ケットからの潤滑油の流出がより行われ易くなり、これ
に伴って塵埃の排出もより良好に行われる。また、各ポ
ケットの中間部の切欠を深くした場合は、中間部のポケ
ット幅の広がりによって潤滑油の流れおよび塵埃の排出
がより良好に行われる。If the outer ridge has a narrower width in the axial direction and a lower height than the inner ridge, lubricating oil flows out of the pocket more easily. Along with this, the discharge of dust is performed more favorably. Further, when the notch in the middle portion of each pocket is deepened, the flow of the lubricating oil and the discharge of dust are performed more favorably due to the widening of the pocket width in the middle portion.
【００１０】[0010]
【実施例】この発明の一実施例を図１ないし図３に基づ
いて説明する。保持器１は、円筒状の合成樹脂の成形品
からなり、針状のころ２を各々収容した多数のポケット
３が、円周方向に並んで形成されている。なお、図１に
は一部のポケット３のみを示し、他は省略してある。ポ
ケット３の保持器周方向に対向する側面には、内径側お
よび外径側の開口縁にころ落ち止め用の突条４，５が各
々設けてある。また、このポケット側面には、中間部と
両端とに切欠６，８が設けられ、前記各突条４，５は中
央の切欠６と両端の切欠８との間の２か所に分かれてい
る。保持器１の外径面には円周溝１０が設けてあり、こ
の円周溝１０は、中間部の切欠６に対応する位置とされ
ている。切欠６，８の軸方向寸法の和は、潤滑作用，こ
ろ保持の点から、ころ２の長さの６０〜８０パーセント
の長さにすることが好ましい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The retainer 1 is formed of a cylindrical synthetic resin molded product, and has a large number of pockets 3 each accommodating a needle roller 2 formed in a circumferential direction. Note that FIG. 1 shows only a part of the pockets 3 and omits others. On the side surface of the pocket 3 which faces the retainer in the circumferential direction, ridges 4 and 5 are provided on the inner and outer diametrical openings, respectively, to prevent the roller from falling. Notches 6 and 8 are provided on the side surface of the pocket at an intermediate portion and both ends, and each of the ridges 4 and 5 is divided into two portions between the center notch 6 and the notches 8 at both ends. . A circumferential groove 10 is provided on the outer diameter surface of the retainer 1, and the circumferential groove 10 is located at a position corresponding to the notch 6 at the intermediate portion. The sum of the axial dimensions of the notches 6 and 8 is preferably 60 to 80% of the length of the roller 2 in terms of lubrication and roller holding.
【００１１】図２に拡大して示すように、内径側の突条
４の突出高さｈ１は、外径側の突条５の突出高さｈ２よ
りも高くしてある。また、内径側の突条４の片面と、外
径側の突条５の両面は各々テーパ面又は曲率面としてあ
り、その傾斜角度ａ〜ｃは、例えばａ＝３０°、ｂ＝４
５°、ｃ＝１５°に設定される。なお、この保持器１は
転動体案内形式のものであり、各部の寸法は、ころ２で
保持器１の案内が行える寸法に設定される。As shown in FIG. 2, the protrusion height h1 of the ridge 4 on the inner diameter side is higher than the protrusion height h2 of the ridge 5 on the outer diameter side. Also, one surface of the ridge 4 on the inner diameter side and both surfaces of the ridge 5 on the outer diameter side are respectively tapered surfaces or curvature surfaces, and their inclination angles a to c are, for example, a = 30 ° and b = 4.
5 ° and c = 15 ° are set. The retainer 1 is of a rolling element guide type, and the dimensions of each part are set to dimensions that allow the rollers 2 to guide the retainer 1.
【００１２】上記構成の作用を説明する。この保持器付
き針状ころを回転軸に設置して外部潤滑で使用した場
合、遠心力の作用により、潤滑油は保持器１の内径側か
らポケット３内に流入して外径側へ流出する。このとき
に、ポケット側面の中間部と両端との３箇所に切欠６，
８が設けられ、ころ落ち止め用の突条４，５は各切欠
６，８の間のみに位置するため、各切欠６，８の部分で
潤滑油の流入および流出が良好に行われて、ポケット３
内の全体に十分な量の潤滑油が供給される。特に、滑り
摩擦となるころ２の端面付近への供給油量が増える。The operation of the above configuration will be described. When the needle roller with the retainer is installed on the rotating shaft and used for external lubrication, the lubricating oil flows into the pocket 3 from the inner diameter side of the retainer 1 and flows out to the outer diameter side by the action of centrifugal force. . At this time, the notch 6,
8 is provided, and the ribs 4 and 5 for preventing the roller from falling are located only between the cutouts 6 and 8, so that the inflow and outflow of the lubricating oil are properly performed at the cutouts 6 and 8, Pocket 3
A sufficient amount of lubricating oil is supplied to the whole. In particular, the amount of oil supplied to the vicinity of the end face of the roller 2 that causes sliding friction increases.
【００１３】また、保持器１の外径面に円周溝１０が形
成されて、この円周溝１０は中間部の切欠６に対応する
位置となっているため、潤滑油の流出がより一層行われ
易くなる。そのため、外径側に突条５があるにもかかわ
らず、非常に優れた潤滑油の流れが得られる。また、こ
のようにポケット３内の全体における潤滑油の流れが良
くなるため、潤滑油中に塵埃が介在していても、停滞す
ることなく排出がスムーズに行われる。これらのため潤
滑作用が向上し、塵埃の多い使用箇所においても、優れ
た潤滑作用および軸受寿命を得ることができる。Further, a circumferential groove 10 is formed on the outer diameter surface of the retainer 1, and the circumferential groove 10 is located at a position corresponding to the notch 6 at the intermediate portion, so that the lubricating oil flows out even more. Easier to do. Therefore, a very excellent lubricating oil flow can be obtained despite the protrusions 5 on the outer diameter side. In addition, since the flow of the lubricating oil in the entire inside of the pocket 3 is improved in this manner, even if dust is present in the lubricating oil, the lubricating oil is smoothly discharged without stagnation. For these reasons, the lubricating action is improved, and excellent lubricating action and bearing life can be obtained even in a use location where there is a lot of dust.
【００１４】図４および図５は他の実施例を示す。この
例は、外径側の突条５の軸方向幅ｄ２を、内径側の突条
４の軸方向幅ｄ１に比べて狭くし、かつ前記実施例と同
様に外径側の突条５の突出高さｈ２を、内径側の突条４
の突出高さｈ１に比べて低くしてある。その他の構成は
前記実施例と同様である。このように構成した場合、外
径側の突条５が小さいために、ポケット３から潤滑油が
排出され易くなって、潤滑油の流れがより良くなり、こ
れに伴って塵埃の排出もより良好に行われる。FIGS. 4 and 5 show another embodiment. In this example, the axial width d2 of the ridge 5 on the outer diameter side is made narrower than the axial width d1 of the ridge 4 on the inner diameter side. The protrusion height h2 is set to the ridge 4 on the inner diameter side.
Is lower than the protruding height h1. Other configurations are the same as those in the above embodiment. In the case of such a configuration, since the outer ridge 5 is small, the lubricating oil is easily discharged from the pocket 3 and the flow of the lubricating oil is improved, and accordingly, the discharge of dust is also improved. Done in
【００１５】図６および図７は、さらに他の実施例を示
す。この例は、各ポケット３につき、中間部の切欠６を
両端の切欠８よりも深く形成してある。これにより、中
央のポケット幅Ｗ２が両端のポケット幅Ｗ１よりも広く
なっている。その他の構成は図４，図５の実施例と同様
である。この構成の場合、ポケット幅の広くなった中間
部分で潤滑油の流れおよび塵埃の排出がより良好に行わ
れる。FIGS. 6 and 7 show still another embodiment. In this example, for each pocket 3, the notch 6 at the middle is formed deeper than the notches 8 at both ends. Thereby, the center pocket width W2 is wider than the pocket widths W1 at both ends. Other configurations are the same as those of the embodiment of FIGS. In the case of this configuration, the flow of the lubricating oil and the discharge of dust are performed more favorably in the middle portion where the pocket width is widened.
【００１６】なお、前記各使用例は保持器付き針状ころ
を単独で軸受として使用する場合につき説明したが、こ
の保持器付き針状ころは内輪および外輪を組み合わせた
軸受として使用しても良い。In each of the above examples, the case where the needle roller with the cage is used alone as a bearing has been described. However, the needle roller with the cage may be used as a bearing combining the inner ring and the outer ring. .
【００１７】[0017]
【発明の効果】この発明の保持器付き針状ころは、保持
器のポケットの側面における中間部と両端とに切欠を設
けてころ落ち止め用突条をこれら切欠の間のみに配置
し、かつ保持器の外径面に円周溝を設けたため、潤滑油
量の増加、特に滑り接触となるころ端面への供給油量の
増加が行え、しかもポケット内に侵入した塵埃の停滞を
無くすことができ、これらにより潤滑作用および軸受寿
命が向上する。According to the needle roller with a retainer of the present invention, a notch is provided at an intermediate portion and both ends of the side surface of the pocket of the retainer, and a roller stopper retaining ridge is arranged only between these notches, and A circumferential groove is provided on the outer surface of the cage, so that the amount of lubricating oil can be increased, especially the amount of oil supplied to the roller end surface that is in sliding contact, and the stagnation of dust entering the pocket can be eliminated. The lubrication action and the bearing life are improved by these.
【００１８】また、前記のころ落ち止め用突条につき、
外径側の突条を、内径側の突条に比べて幅が狭くかつ突
出高さが低いものとした場合は、ポケットにおける潤滑
油流れ、および塵埃の排出性が一層向上する。さらに、
各ポケットにつき、中間部の切欠を両端の切欠よりも深
く形成した場合も、潤滑油流れ、および塵埃の排出性を
より向上させることができる。[0018] Further, with respect to the above-mentioned roller drop retaining ridge,
If the outer ridge is narrower and the projection height is smaller than the inner ridge, the lubricating oil flow in the pocket and the dust discharge performance are further improved. further,
Even when the notch at the intermediate portion is formed deeper than the notch at both ends for each pocket, it is possible to further improve the lubricating oil flow and the dust discharging property.
【図１】この発明の一実施例の一部省略断面図である。FIG. 1 is a partially omitted sectional view of an embodiment of the present invention.
【図２】図１のＡ−Ａ線拡大断面図である。FIG. 2 is an enlarged sectional view taken along line AA of FIG.
【図３】図１を矢印Ｂ方向に見た部分平面図である。FIG. 3 is a partial plan view of FIG. 1 as viewed in the direction of arrow B.
【図４】この発明の他の実施例の部分断面図である。FIG. 4 is a partial sectional view of another embodiment of the present invention.
【図５】図４を矢印Ｃ方向に見た部分平面図である。FIG. 5 is a partial plan view of FIG. 4 as viewed in the direction of arrow C;
【図６】この発明のさらに他の実施例の部分平面図であ
る。FIG. 6 is a partial plan view of still another embodiment of the present invention.
【図７】図６のＤ−Ｄ線拡大断面図である。FIG. 7 is an enlarged sectional view taken along line DD of FIG. 6;
【図８】従来例の部分断面図である。FIG. 8 is a partial cross-sectional view of a conventional example.
１…保持器、２…ころ、３…ポケット、４，５…突条、
６，８…切欠、１０…円周溝、ｄ１，ｄ２…軸方向幅、
ｈ１，ｈ２…突出高さ、Ｗ１，Ｗ２…ポケット幅1 ... Cage, 2 ... Roller, 3 ... Pocket, 4,5 ... Protrusion,
6, 8 ... notch, 10 ... circumferential groove, d1, d2 ... axial width,
h1, h2: Projection height, W1, W2: Pocket width
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鵜沢 信夫 茨城県土浦市神立町650番地 日立建機 株式会社土浦工場内 (72)発明者 田中 章弘 茨城県土浦市神立町650番地 日立建機 株式会社土浦工場内 (72)発明者 山本 忍 茨城県土浦市神立町650番地 日立建機 株式会社土浦工場内 (56)参考文献 特開 平５−202942（ＪＰ，Ａ) 特開 昭62−137415（ＪＰ，Ａ) 実開 平４−41115（ＪＰ，Ｕ) 実開 平５−30555（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F16C 33/46 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Nobuo Uzawa 650, Kandamachi, Tsuchiura-shi, Ibaraki Hitachi Construction Machinery Co., Ltd. Within the Tsuchiura Plant (72) Inventor Shinobu Yamamoto 650, Kandamachi, Tsuchiura-shi, Ibaraki Prefecture Within the Tsuchiura Plant Hitachi Construction Machinery Co., Ltd. (56) References JP-A-5-202942 (JP, A) JP-A-62-137415 (JP) , A) Japanese Utility Model Application Hei 4-41115 (JP, U) Japanese Utility Model Application Hei 5-30555 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) F16C 33/46
Claims (3)
数箇所の各ポケットに針状のころを収容し、各ポケット
の保持器の周方向に対向する側面の内径側および外径側
の開口縁にころ落ち止め用の突条を設けた保持器付き針
状ころにおいて、各ポケットの側面における中間部と両
端の周方向に切欠を設け、前記突条はこれら中間部と両
端の切欠の間に配置し、かつ前記保持器の外径面に円周
溝を設け、この円周溝を、前記中間部の切欠に対応する
位置でかつその切欠の軸方向の幅寸法内で形成した保持
器付き針状ころ。1. A needle roller is accommodated in each of a plurality of circumferential pockets provided in a cylindrical resin cage, and the inner and outer radial sides of the circumferentially opposed side surfaces of the respective cages in the respective pockets. In the needle roller with a retainer provided with a projection for preventing the roller from falling at the opening edge of the pocket , a notch is provided in the circumferential direction of the intermediate portion and both ends on the side surface of each pocket, and the notch is provided at the intermediate portion and both ends. And a circumferential groove is provided on the outer diameter surface of the retainer, and the circumferential groove is formed at a position corresponding to the notch of the intermediate portion and within the axial width of the notch. Needle roller with retainer.
数箇所の各ポケットに針状のころを収容し、各ポケット
の保持器の周方向に対向する側面の内径側および外径側
の開口縁にころ落ち止め用の突条を設けた保持器付き針
状ころにおいて、各ポケットの側面の中間部と両端とに
切欠を設け、前記突条はこれら中間部と両端の切欠の間
に配置し、かつ前記保持器の外径面に円周溝を設け、こ
の円周溝を、前記中間部の切欠に対応する位置とし、外
径側の突条を、内径側の突条に比べて、軸方向幅が狭く
かつ突出高さが低いものとした保持器付き針状ころ。2. A circumferential multiple member provided on a cylindrical resin cage.
Needle-shaped rollers are accommodated in several pockets, and each pocket
Inner and outer diameter sides of the side surface of the cage
Needle with retainer provided with ribs on the opening edge
In the roller, at the middle and both ends of the side of each pocket
Notches are provided, and the ridges are located between these notches at the middle and both ends.
And a circumferential groove is provided on the outer diameter surface of the retainer.
The circumferential groove of which is located at a position corresponding to the notch of the intermediate portion, and the outer ridge has a smaller axial width and a lower protrusion height than the inner ridge. needle rollers with the the hold unit.
数箇所の各ポケットに針状のころを収容し、各ポケット
の保持器の周方向に対向する側面の内径側および外径側
の開口縁にころ落ち止め用の突条を設けた保持器付き針
状ころにおいて、各ポケットの側面の中間部と両端とに
切欠を設け、前記突条はこれら中間部と両端の切欠の間
に配置し、かつ前記保持器の外径面に円周溝を設け、こ
の円周溝を、前記中間部の切欠に対応する位置とし、中
間部の切欠を端部の切欠よりも深く形成した保持器付き
針状ころ。3. A circumferential direction multiple member provided on a cylindrical resin cage.
Needle-shaped rollers are accommodated in several pockets, and each pocket
Inner and outer diameter sides of the side surface of the cage
Needle with retainer provided with ribs on the opening edge
In the roller, at the middle and both ends of the side of each pocket
Notches are provided, and the ridges are located between these notches at the middle and both ends.
And a circumferential groove is provided on the outer diameter surface of the retainer.
Of the circumferential groove, wherein a cutout corresponding to the position of the intermediate portion, the intermediate portion notches hold device with needle roller which is deeper than the notch in the end of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5269675A JP2912532B2 (en) | 1993-09-30 | 1993-09-30 | Needle roller with cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5269675A JP2912532B2 (en) | 1993-09-30 | 1993-09-30 | Needle roller with cage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07103240A JPH07103240A (en) | 1995-04-18 |
| JP2912532B2 true JP2912532B2 (en) | 1999-06-28 |
Family
ID=17475637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5269675A Expired - Lifetime JP2912532B2 (en) | 1993-09-30 | 1993-09-30 | Needle roller with cage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2912532B2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3818762B2 (en) * | 1997-12-01 | 2006-09-06 | 株式会社ジェイテクト | Synthetic resin cage for roller bearings |
| JP5341336B2 (en) * | 2007-10-22 | 2013-11-13 | Ｎｔｎ株式会社 | Thrust roller bearing |
| JP2009168180A (en) * | 2008-01-17 | 2009-07-30 | Jtekt Corp | Cage for roller bearing |
| JP5300369B2 (en) | 2008-08-12 | 2013-09-25 | Ｎｔｎ株式会社 | Roller with cage |
| JP2009210128A (en) * | 2009-05-12 | 2009-09-17 | Toyota Motor Corp | Electromagnetic roller clutch |
| JP5492700B2 (en) * | 2010-08-05 | 2014-05-14 | 住友重機械工業株式会社 | Roller retainer and swinging intermeshing gear device |
| EP2803880B1 (en) | 2012-01-10 | 2016-07-13 | NTN Corporation | Chain guide and chain transmission device |
| JP6422625B2 (en) * | 2012-03-23 | 2018-11-14 | Ntn株式会社 | Needle roller bearing cage and needle roller bearing structure |
| JP6497833B2 (en) * | 2012-10-05 | 2019-04-10 | Ntn株式会社 | Needle roller with cage |
| JP6557950B2 (en) * | 2014-08-29 | 2019-08-14 | 日本精工株式会社 | Solid needle bearing |
| JP2017125616A (en) * | 2017-04-24 | 2017-07-20 | Ntn株式会社 | Cage of roller bearing and roller bearing structure |
-
1993
- 1993-09-30 JP JP5269675A patent/JP2912532B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07103240A (en) | 1995-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4042285A (en) | Thrust bearing | |
| EP2031259A2 (en) | Cage for rolling bearing | |
| JP2912532B2 (en) | Needle roller with cage | |
| JP3874463B2 (en) | Synthetic resin cage for roller bearings | |
| US4787757A (en) | Bearing construction with a cage provided with lubrication grooves | |
| JPH07190070A (en) | Roller guide member for total roller bearing | |
| US10465745B2 (en) | Thrust roller bearing cage and thrust roller bearing | |
| US20010000285A1 (en) | Pulley unit | |
| JPH09217748A (en) | Comb-type retainer for rolling bearing, especially for cylindrical roller bearing | |
| US3957325A (en) | Thrust bearing race | |
| JP6076610B2 (en) | Roller bearing cage | |
| CN110566584A (en) | Thrust needle roller bearing | |
| JP2004028342A (en) | Thrust roller bearing | |
| JP2001116051A (en) | Cage for ball bearing and ball bearing | |
| JPH09177790A (en) | Retainer for roller bearing | |
| JPH074439A (en) | High speed angular ball bearing | |
| JP3922729B2 (en) | Radial needle bearing | |
| JPH10318264A (en) | Holder made of synthetic resin for rolling bearing | |
| US9689423B2 (en) | Rolling bearing | |
| JPH084758A (en) | Ball bearing | |
| JPH09303402A (en) | Retainer for ball bearing | |
| JP2016200265A (en) | Thrust roller bearing | |
| JP2000039024A (en) | Holder for rolling bearing | |
| JP2005155759A (en) | Rolling bearing | |
| JP3030673B2 (en) | Roller bearing cage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090409 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090409 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100409 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110409 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120409 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130409 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130409 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140409 Year of fee payment: 15 |
|
| EXPY | Cancellation because of completion of term |