JPS5911211Y2 - Synthetic resin cage for rolling bearings - Google Patents
Synthetic resin cage for rolling bearingsInfo
- Publication number
- JPS5911211Y2 JPS5911211Y2 JP16914978U JP16914978U JPS5911211Y2 JP S5911211 Y2 JPS5911211 Y2 JP S5911211Y2 JP 16914978 U JP16914978 U JP 16914978U JP 16914978 U JP16914978 U JP 16914978U JP S5911211 Y2 JPS5911211 Y2 JP S5911211Y2
- Authority
- JP
- Japan
- Prior art keywords
- cage
- convex
- concave
- circumferential direction
- divided
- 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
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
- F16C33/4694—Single-split roller or needle cages
Description
【考案の詳細な説明】
本考案は、ころがり軸受用合戊樹脂製保持器、殊に軸受
が嵌合される軸が折曲している場合あるいは段付軸で軸
方向から組込みできない場合に使用されるため、円周に
多数の転勤体用ポケットを形戒する各保持器柱のうち少
くとも１個所の保持器柱が円周方向に分断されている保
持器の改良に関する。[Detailed description of the invention] This invention is used for a synthetic resin cage for rolling bearings, especially when the shaft to which the bearing is fitted is bent or a stepped shaft that cannot be assembled from the axial direction. Therefore, the present invention relates to an improvement of a cage in which at least one cage column among each cage column forming a large number of transfer body pockets around the circumference is divided in the circumferential direction.
従来この種の合或樹脂製保持器が種々提案されている。Conventionally, various types of cages made of resin have been proposed.
例えば、英国特許第１， ３５２， ９０９号に示すよ
うに、保持器柱の分断部の互に対向するそれぞれの境界
面が、その長手方向（軸方向）で二つの面に分れており
、前記一方の境界面の持つ二つの面の各々が他方の境界
面のもつ二つの対応する面と一致し、かつ相互に半径方
向にオフセットされた歯形状の凸部を有する構造であり
、前記境界面の長手方向の二つの面のうちその一方の対
向面が互に合致するようにし、残された他方の面にはギ
ャップが残るように設計製作されている。For example, as shown in British Patent No. 1,352,909, each of the mutually opposing boundary surfaces of the divided portion of the cage column is divided into two surfaces in the longitudinal direction (axial direction), Each of the two surfaces of the one boundary surface coincides with the two corresponding surfaces of the other boundary surface, and has tooth-shaped convex portions offset from each other in the radial direction, and the boundary surface It is designed and manufactured so that one of the two opposing surfaces in the longitudinal direction of the surface coincides with each other, and a gap remains in the other remaining surface.
上記の構造にあっては、軸受の回転中上記ギャップに起
因して保持器の倒れを助長し、また転勤体がころである
場合にはころのスキューを生じ、さらに保持器のねじれ
や境界面における突き合せ面の摩耗を生じる等、軸受回
転性能を阻害する欠点がある。In the above structure, during rotation of the bearing, the gap promotes the collapse of the cage, and if the rolling element is a roller, it causes roller skew, and furthermore, the cage is twisted and the boundary surface is There are drawbacks that impede bearing rotation performance, such as causing wear on the abutting surfaces.
また、実開昭５３−１０４８４９号公報に記載の保持器
は、柱の切断部の互に対向する境界面の両端側の非対称
位置で、一方の面に凸部を、他方の面に凹部を設けた構
造であるから、保持器柱の切断部の両端は、保持器の内
向き半径方向または外向き半径方向のいずれる一方しか
移動を阻止されない。Furthermore, the cage described in Japanese Utility Model Application Publication No. 53-104849 has a convex portion on one surface and a concave portion on the other surface at asymmetric positions on both end sides of the mutually opposing boundary surfaces of the cut portion of the column. Because of the provided structure, both ends of the cut portion of the cage column are prevented from moving only in either the inward radial direction or the outward radial direction of the cage.
このためころがスキューを生し、保持器のポケット側壁
に極部当りをすると、柱の切断部に半径方向のいずれを
生じ、保持器にねじれを生じやすく、軸受回転性能を阻
害する欠点がある。As a result, if the rollers are skewed and hit the pole of the pocket side wall of the cage, the cut section of the column will be skewed in the radial direction, which tends to cause twisting of the cage, which has the drawback of impeding bearing rotation performance. .
本考案は、このような従来保持器における軸受回転性能
を阻害する欠点を解消することを目的としたものである
。The present invention aims to eliminate the drawbacks of conventional cages that impede bearing rotation performance.
以下実施例を第１図乃至第４図にもとづいて説明すると
、１は保持器で、円周に多数の転勤体用ポケット２を形
或する各保持器柱３のうち少くとも１個所の保持器柱が
円周方向に分断４されている。The embodiment will be described below based on FIGS. 1 to 4. Reference numeral 1 denotes a cage, and the cage 1 holds at least one part of each cage column 3, which has a large number of transfer body pockets 2 formed on its circumference. The vessel pillar is divided into 4 parts in the circumferential direction.
前記転勤体用ポケット２は、金型を軸方向に抜くことに
より形或される。The transfer body pocket 2 is formed by punching out a mold in the axial direction.
すなわち保持器の肉厚の半分から外径側は第２図の矢符
Ａで示す軸方向に金型を抜き、内径側は矢符Ａとは反対
の軸方向に金型を抜くことによって転勤体用ポケット２
が形威される。In other words, from half the wall thickness of the retainer, the mold is removed from the outer diameter side in the axial direction shown by arrow A in Figure 2, and from the inner diameter side, the mold is removed in the axial direction opposite to arrow A. body pocket 2
is expressed.
また前記分断部４の互に対向する境界面５，６の一方の
面５の長手方向中央部に円周方向に突出しかつその内外
径面が保持器の内外径面と同一円周上に位置する凸部７
が、他方の面６の長手方向中央部に前記凸部７を嵌入し
かつ保持器の内外径面のみに連通ずる凹部８がそれぞれ
形威されている。Further, one of the mutually opposing boundary surfaces 5 and 6 of the divided portion 4 protrudes circumferentially from the center in the longitudinal direction of one surface 5, and its inner and outer diameter surfaces are located on the same circumference as the inner and outer diameter surfaces of the cage. Convex portion 7
However, a recess 8 is formed in the longitudinal center of the other surface 6, into which the projection 7 is inserted and which communicates only with the inner and outer diameter surfaces of the retainer.
前記凸部７は角部７ａがそれぞれ面取りされた断面略矩
形に形或され、凹部８は該凸部７と同一形状の断面略矩
形に形或されている。The convex portion 7 has a substantially rectangular cross section with chamfered corners 7a, and the concave portion 8 has a substantially rectangular cross section having the same shape as the convex portion 7.
前記凹凸部８，７のそれぞれは、その嵌合状態において
、保持器の内向き半径方向、外向き半径方向および軸方
向の相対移動を制限されてはいるが、円周方向の自由な
相対移動を許容する断面積にされている。In the fitted state, each of the uneven portions 8 and 7 is restricted from relative movement in the inward radial direction, outward radial direction, and axial direction of the retainer, but is free in relative movement in the circumferential direction. The cross-sectional area is set to allow for.
すなわち、凹部８の各角部は凸部７の面取りされた角部
７ａに対応する突起部８ａに形或されており、従って前
記凹凸部８，７のそれぞれが、その嵌今時、凸部７の各
角部７ａと該角部７ａに対応する凹部８の各突起部８ａ
との接触および凸部７の側面７ｂと凹部８の側面８ｂと
の接触によって保持器の内向き半径方向、外向き半径方
向および軸方向の相対移動を制限される。That is, each corner of the recess 8 is formed into a protrusion 8a corresponding to the chamfered corner 7a of the convex part 7, and therefore, each of the concave and convex parts 8, 7 is fitted into the convex part 7. each corner 7a and each protrusion 8a of the recess 8 corresponding to the corner 7a.
The relative movement of the retainer in the inward radial direction, outward radial direction, and axial direction is restricted by contact with the side surface 7b of the convex portion 7 and the side surface 8b of the concave portion 8.
さらに前記凸部７の円周方向長さは凹部８の円周方向長
さより若干短かく形威されており、その嵌金時、凸部７
が形或された一方の面５の平坦部９と凹部８が形或され
た他方の面６の平坦部１０とが当接し、凸部７の先端面
７Ｃとこれと対向する凹部８の底面８Ｃとの間にスキマ
ｔが形或される。Further, the circumferential length of the convex portion 7 is slightly shorter than the circumferential length of the concave portion 8, and when the convex portion 7 is fitted, the convex portion 7
The flat portion 9 of one surface 5 having a shape thereon contacts the flat portion 10 of the other surface 6 having a concave portion 8 formed thereon, and the tip surface 7C of the convex portion 7 and the bottom surface of the concave portion 8 opposite thereto are brought into contact with each other. A gap t is formed between 8C and 8C.
上記実施例では、前記凹凸部８，７の形状を断面略矩形
としたが、これに限定されず、少くとも凹凸部８，７の
それぞれが、その嵌今時保持器の内向き半径方向、外向
き半径方向および軸方向の相対移動を制限されると共に
、円周方向の自由な相対移動を許容する断面積と互に同
一の断面形状に形威されていればよい。In the above embodiment, the shape of the uneven portions 8, 7 is approximately rectangular in cross section, but the shape is not limited thereto. It is sufficient that the cross-sectional shape is the same as the cross-sectional area that restricts relative movement in the radial direction and axial direction and allows free relative movement in the circumferential direction.
本考案は以上の構造であるから、軸受回転時、保持器が
分断部において保持器の内向き半径方向、外向き半径方
向および軸方向にずれるを生じたり、ねじれたりするこ
とがなく、したがって保持器の分断部の端部内径がシャ
フトに接触あるいは端部外径がハウジングに接触してト
ルクが大きくなり異常昇温、摩耗等が発生するというこ
とがなくなる。Since the present invention has the above-described structure, when the bearing rotates, the cage does not shift or twist in the inward radial direction, outward radial direction, or axial direction at the divided portion, and therefore the retainer is not twisted. This eliminates the possibility that the inner diameter of the end of the divided portion of the vessel contacts the shaft or the outer diameter of the end contacts the housing, resulting in increased torque and abnormal temperature rise, wear, etc.
また前記凸部の先端面とこれと対向する凹部の底面との
間にスキマを形或して分断部の互に対向する境界面の各
平坦面が完全に当接するようにしたため、保持器の倒れ
や転勤体がころである場合の該ころのスキューを生じる
ことがなく、さらには保持器のねじれや境界面における
突き合せ面の摩耗を生じることがなく、軸受回転性能を
良好に維持できる。In addition, a gap is formed between the tip surface of the convex portion and the bottom surface of the concave portion opposing this so that the flat surfaces of the mutually opposing boundary surfaces of the divided portions are in complete contact with each other, so that the retainer There is no occurrence of falling or skewing of the rollers when the rolling element is a roller, and there is no twisting of the retainer or wear of the abutting surfaces at the interface, and good bearing rotational performance can be maintained.
第１図は本考案における保持器の組合せ前の側面図、第
２図は第１図の要部斜面図、第３図は第２図のＢ矢視図
、第４図は保持器を組合せた状態での要部平面図である
。
１・・・・・・保持器、２・・・・・・転動体用ポケッ
ト、３・・・・・・保持器柱、４・・・・・・分断部、
７・・・・・・凸部、８・・・・・・凹部。Fig. 1 is a side view of the cage in the present invention before it is assembled, Fig. 2 is a slope view of the main part of Fig. 1, Fig. 3 is a view taken in the direction of arrow B in Fig. 2, and Fig. 4 is the cage assembled. FIG. 1...Cage, 2...Pocket for rolling element, 3...Cage pillar, 4...Divided portion,
7... Convex portion, 8... Concave portion.
Claims (1)
うち少くとも１個所の保持器柱が円周方向に分断されて
おり、分断部の互に対向する境界面の一方の面に円周方
向に突出する凸部を、他方の面に前記凸部を嵌入する凹
部をそれぞれ形威して前記の凸部を凹部に嵌入するよう
にしたころがり軸受用合或樹脂製保持器において、保持
器柱の長手方向の中央部に前記凹凸部を、凸部の内外径
面が保持器の内外径面と同一円周上に位置しかつ凹部が
保持器の内外径面にのみ連通するように形戊すると共に
、該凹凸部を、嵌合状態において保持器の内向き半径方
向、外向き半径方向および軸方向の相対移動を制限する
と共に円周方向の自由な相対移動を許容する互いに同一
の断面積で同一の断面多角形状にそれぞれ形或し、前記
凸部の先端面とこれと対向する凹部の底面との間にスキ
マを形或するとともに、各境界面の前記凹部または凸部
の軸方向両側を平担面にそれぞれ形威したことを特徴と
するころがり軸受用合成樹脂製保持器。At least one of the cage columns forming a large number of transfer body pockets around the circumference is divided in the circumferential direction, and one surface of the mutually opposing boundary surfaces of the divided portions is divided in the circumferential direction. In a resin cage for a rolling bearing, which has a convex part projecting in the circumferential direction on one side, and a concave part into which the convex part is fitted on the other side, so that the convex part is fitted into the concave part. , the uneven portion is provided in the longitudinal center of the cage column, the inner and outer diameter surfaces of the projection are located on the same circumference as the inner and outer diameter surfaces of the cage, and the recessed portion communicates only with the inner and outer diameter surfaces of the cage. The concave and convex portions are shaped so as to limit the relative movement of the retainer in the inward radial direction, outward radial direction and axial direction in the fitted state, while allowing free relative movement in the circumferential direction. each having the same cross-sectional area and the same polygonal cross-sectional shape, and forming a gap between the tip surface of the convex portion and the bottom surface of the concave portion opposing thereto, and forming a gap between the concave portion or the convex portion of each boundary surface. A synthetic resin cage for a rolling bearing, characterized in that both sides in the axial direction of the cage are formed into flat surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16914978U JPS5911211Y2 (en) | 1978-12-07 | 1978-12-07 | Synthetic resin cage for rolling bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16914978U JPS5911211Y2 (en) | 1978-12-07 | 1978-12-07 | Synthetic resin cage for rolling bearings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5584316U JPS5584316U (en) | 1980-06-10 |
| JPS5911211Y2 true JPS5911211Y2 (en) | 1984-04-06 |
Family
ID=29170950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16914978U Expired JPS5911211Y2 (en) | 1978-12-07 | 1978-12-07 | Synthetic resin cage for rolling bearings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5911211Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104471262A (en) * | 2012-07-17 | 2015-03-25 | 日本精工株式会社 | Retainer for radial roller bearing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5974697B2 (en) * | 2012-07-17 | 2016-08-23 | 日本精工株式会社 | Radial roller bearing cage |
-
1978
- 1978-12-07 JP JP16914978U patent/JPS5911211Y2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104471262A (en) * | 2012-07-17 | 2015-03-25 | 日本精工株式会社 | Retainer for radial roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5584316U (en) | 1980-06-10 |
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