JP2524932Y2 - Cage of spherical roller bearing - Google Patents
Cage of spherical roller bearingInfo
- Publication number
- JP2524932Y2 JP2524932Y2 JP1990130406U JP13040690U JP2524932Y2 JP 2524932 Y2 JP2524932 Y2 JP 2524932Y2 JP 1990130406 U JP1990130406 U JP 1990130406U JP 13040690 U JP13040690 U JP 13040690U JP 2524932 Y2 JP2524932 Y2 JP 2524932Y2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- cage
- rollers
- roller bearing
- 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 - Fee Related
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
- F16C33/49—Cages for rollers or needles comb-shaped
- F16C33/494—Massive or moulded comb cages
- F16C33/495—Massive or moulded comb cages formed as one piece cages, i.e. monoblock comb 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
- 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
- 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
- F16C19/34—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 both radial and axial load
- F16C19/38—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 both radial and axial load with two or more rows of 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
- F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
- F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、自動調心ころ軸受に用いられる保持器に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a cage used for a self-aligning roller bearing.
自動調心ころ軸受は、調心機能をもたせるために、第
４図に示すように周面が曲面に形成されたころ７を軌道
輪８、９間に組み込んで構成されているが、このような
ころ７の保持に用いられる保持器10は、第５図に示すよ
うに、環状部２の端面に、所定間隔で軸方向に突出する
複数の柱部３、３を形成し、その隣接する対の柱部３、
３と、環状部２の端面との間で、ころ７をその軸線が保
持器の軸方向に沿うように収納するポケット11を形成し
て成っており、従来、その各ポケット11における柱部
３、３の表面は、ポケット11の中心軸を軸線とする円筒
面12、12で形成されている。The self-aligning roller bearing is configured by incorporating a roller 7 having a curved peripheral surface as shown in FIG. 4 between the bearing rings 8 and 9 in order to provide an aligning function. As shown in FIG. 5, a retainer 10 used for holding the rollers 7 has a plurality of pillars 3, 3 projecting in the axial direction at predetermined intervals on the end face of the annular portion 2, and adjacent thereto. Twin pillars 3,
A pocket 11 for accommodating the roller 7 with its axis along the axial direction of the retainer is formed between the end portion 3 of the annular portion 2 and the cylindrical portion 3. The surface of 3 is formed by cylindrical surfaces 12 and 12 having the central axis of the pocket 11 as an axis.
ところで、上記の自動調心ころ軸受において、ころ７
と軌道輪８、９とはすき間をもった状態で転動するた
め、使用中軸受内のころには、第６図に示すように、荷
重が作用する部分（負荷圏）Ａと、荷重が作用しない部
分（非負荷圏）Ｂとが生じる。By the way, in the above self-aligning roller bearing, the rollers 7
Since the bearing rings 8 and 9 roll with a gap therebetween, the roller in the bearing in use has a portion (load zone) A where a load acts (see FIG. 6) and a load A non-operating portion (non-load zone) B occurs.
この場合、非負荷圏Ｂから負荷圏Ａに移行する部分で
は、軸受内のころの姿勢は保持器10のポケット11により
規制されるが、上記のようにポケット11の表面が円筒面
12、12である場合、ポケットところ７両端との間に大き
なすき間が生じるため、ころ７はポケット11内で傾きや
すい状態になる。このため、負荷圏に移行しようとする
と、ころ７にスキューが起こり易くなり、そのスキュー
によって軸受温度の上昇や軌道面のフレーキング等が引
き起されるという欠点がある。In this case, in the portion where the load zone B shifts from the non-load zone B to the load zone A, the attitude of the rollers in the bearing is regulated by the pockets 11 of the cage 10, but the surface of the pockets 11 is cylindrical as described above.
In the case of 12 and 12, there is a large gap between both ends of the pocket 7 and the roller 7 is easily inclined in the pocket 11. For this reason, when trying to shift to the load zone, skew tends to occur in the rollers 7, and the skew causes a rise in bearing temperature and flaking of the raceway surface.
また、負荷圏Ａでころが転動する場合も、円筒面であ
るポケット11の表面ところとの間に大きなガタがあるた
め、ころはポケット内で大きな傾き角をとることがで
き、スキューが生じる不具合がある。Also, when the rollers roll in the load zone A, since there is a large play between the rollers and the surface of the pocket 11, which is a cylindrical surface, the rollers can take a large inclination angle in the pocket, and skew occurs. There is a defect.
一方、上記のような問題を解消するため、第７図に示
すように、ポケット13の表面を、ころ７の表面形状に沿
った円弧面14、14に形成して、スキューを抑えようとす
る考えがある。これはポケット13表面ところ７との間の
すき間を極力小さくして、ころの傾き角を抑えようとす
るものである。On the other hand, in order to solve the above-mentioned problem, as shown in FIG. 7, the surface of the pocket 13 is formed into arcuate surfaces 14, 14 along the surface shape of the rollers 7, so as to suppress skew. I have an idea. This is to make the gap between the pocket 13 and the surface 7 as small as possible to suppress the inclination angle of the rollers.
しかしながら、従来の自動調心ころ軸受の保持器は、
銅合金や鉛合金などの素材にドリル加工等の機械加工に
よりポケットを形成するため、上記のようにポケット表
面全体を円弧面に形成するのは、極めて加工が難しく、
良好な加工精度が得られにくいという問題がある。However, conventional cages for spherical roller bearings are:
Because the pockets are formed by machining such as drilling in materials such as copper alloys and lead alloys, forming the entire pocket surface in an arcuate surface as described above is extremely difficult,
There is a problem that it is difficult to obtain good processing accuracy.
また、ポケット全体を円弧面にした形状では、第７図
に破線で示すごとく、ころ７がポケット13から抜け出し
た状態で傾く場合、ころ７の表面とポケット13表面との
当たり位置が変化し、ころ７の最大径位置がポケットに
接触するとは限らないため、その当たり具合によっては
ころ７が逆に大きく傾いてしまうことがあり、大規模な
スキューが生じる不具合をもっている。In the case where the entire pocket is formed into an arcuate surface, as shown by a broken line in FIG. 7, when the roller 7 is tilted out of the pocket 13, the contact position between the surface of the roller 7 and the surface of the pocket 13 changes, Since the position of the maximum diameter of the roller 7 does not always contact the pocket, the roller 7 may be greatly inclined depending on how the roller 7 hits, causing a problem that a large-scale skew occurs.
そこで、この考案は、加工が容易にできると共に、こ
ろのスキューを安定して小さく抑えることができる保持
器を提供することを目的としている。Therefore, an object of the present invention is to provide a cage that can be easily processed and can stably suppress the roller skew.
上記の課題を解決するため、この考案は、ポケットに
おける柱部の根元部の表面を、ころの周面形状に沿った
曲面で形成し、それ以外の柱部の表面を、ポケットの中
心軸を軸線とする円筒面で形成したものである。In order to solve the above-mentioned problem, the present invention forms the surface of the base of the column in the pocket with a curved surface along the peripheral shape of the roller, and the other surfaces of the column with the central axis of the pocket. It is formed by a cylindrical surface as an axis.
上記の構造では、柱部の根元側の曲面がポケット内の
ころの傾きを抑えてスキューを防止する。In the above structure, the curved surface on the base side of the pillar portion suppresses the inclination of the rollers in the pocket to prevent skew.
また、ころがポケットから抜け出しても、柱部の先端
側の表面が円筒面となっているため、ポケット表面に対
するころの当たり位置は変化しない。このため、安定し
てころの傾きを抑えることができ、スキューを防止する
ことができる。Further, even if the roller comes out of the pocket, the contact position of the roller with respect to the pocket surface does not change because the surface on the tip end side of the pillar portion is a cylindrical surface. Therefore, the inclination of the rollers can be stably suppressed, and skew can be prevented.
また、柱部の表面は、根元部だけが曲面で先端側は円
筒面であるので、その形状に沿って形成したドリル等を
用いれば、押し付け加工により簡単に形成することがで
きる。In addition, since only the base portion has a curved surface and the distal end has a cylindrical surface, the pillar portion can be easily formed by pressing using a drill or the like formed along the shape.
第１図は、実施例の保持器のポケット部分を拡大して
示したものであり、ポケット４を形成する対の柱部３、
３の表面は、収納されるころ７の最大径位置ａから環状
部２の端面に至るまでの範囲で、ころ７の表面形状に対
応した曲率を有する円弧状の曲面５に形成されている。FIG. 1 is an enlarged view of a pocket portion of the cage according to the embodiment, and a pair of pillar portions 3 forming a pocket 4.
The surface of the roller 3 is formed as an arc-shaped curved surface 5 having a curvature corresponding to the surface shape of the roller 7 in a range from the maximum diameter position a of the stored roller 7 to the end face of the annular portion 2.
また、各柱部３、３の上記最大径位置ａから先端まで
の表面は、ポケット４の中心軸ｂを軸線とする円筒面６
で形成されている。The surface from the maximum diameter position a to the tip of each of the pillars 3 is a cylindrical surface 6 whose axis is the central axis b of the pocket 4.
It is formed with.
一方、第２図は他の実施例を示しており、この例で
は、ころの最大径位置ａから根元側に寄った位置より環
状部２の端面までの柱部３、３の表面を、曲面５で形成
し、それ以外の柱部３、３の表面を、円筒面６で形成し
ている。On the other hand, FIG. 2 shows another embodiment. In this example, the surfaces of the pillars 3 and 3 from the position closer to the base side from the maximum diameter position a of the roller to the end face of the annular portion 2 are curved surfaces. 5 and the other surfaces of the pillars 3 and 3 are formed by cylindrical surfaces 6.
上記の２つの実施例のポケット４、４′は、いずれ
も、先端部分をポケット４、４′の形状に沿って形成し
たドリルやエンドミルを用いて、それらを軸方向に柱部
間に向かって押し付けることにより簡単に加工すること
ができ、経済的に形成することができる。In each of the pockets 4 and 4 'of the above two embodiments, using a drill or end mill having a tip portion formed along the shape of the pockets 4 and 4', the pockets 4 and 4 'are axially moved between the column portions. Pressing allows easy processing and economical formation.
また、上記の各ポケット４、４′においては、根元部
の曲面５ところ７とのすき間が小さく、ころ７のガタツ
キが小さくなっているため、ころの傾きが小さく抑えら
れ、スキューが抑制される。Further, in each of the pockets 4 and 4 ', the clearance between the curved surface 5 and the base 7 at the root portion is small and the backlash of the rollers 7 is small, so that the inclination of the rollers is suppressed to be small and the skew is suppressed. .
さらに、ころ７がポケット４、４′から軸方向に抜け
出しても、各ポケットの先端側の表面が円筒面６になっ
ているため、ポケット表面に対するころ７の当たり位置
は最大径位置ａとなり、全く同じになる。このため、第
６図に示す構造のように当たり位置によってころが大き
く傾くようなことがなく、安定してころのスキューを抑
えることができる。Furthermore, even if the roller 7 comes out of the pockets 4 and 4 'in the axial direction, since the surface on the tip side of each pocket is the cylindrical surface 6, the contact position of the roller 7 against the pocket surface is the maximum diameter position a, It will be exactly the same. Therefore, unlike the structure shown in FIG. 6, the rollers do not greatly tilt depending on the contact position, and the skew of the rollers can be suppressed stably.
第３図はその他の実施例を示すもので、柱部根元側の
ポケット４″の表面を、ころ７の周面形状に沿った円錐
状の曲面５′としたものである。FIG. 3 shows another embodiment, in which the surface of the pocket 4 "on the base side of the pillar portion is a conical curved surface 5 'along the peripheral surface shape of the roller 7. In FIG.
以上のように、この考案の保持器は、柱部の根元側だ
けを、ころの周面形状に沿った曲面とし、先端側を円筒
面で形成したので、ポケットの形成加工がドリル加工等
により容易に行なえると共に、ポケットに収納したころ
のスキューを安定して小さく抑制することができ、軸受
の耐久寿命を向上できる効果がある。As described above, in the cage of the present invention, only the base side of the pillar portion has a curved surface along the peripheral shape of the roller, and the tip side is formed by a cylindrical surface, so the pocket forming process is performed by drilling or the like. It is easy to carry out, and the skew of the roller stored in the pocket can be stably suppressed to a small value, so that the durability life of the bearing can be improved.
第１図は実施例の保持器のポケット部分を示す正面図、
第２図は他の実施例を示す正面図、第３図はその他の実
施例を示す正面図、第４図は自動調心ころ軸受を示す断
面図、第５図は従来の保持器を示す正面図、第６図は軸
受におけるころの負荷状態を示す図、第７図は他の従来
例を示す正面図である。 １、１′……保持器、２……環状部、３……柱部、４、
４′、４″……ポケット、５、５′……曲面、６……円
筒面、７……ころ、８、９……軌道輪、Ａ……ころ最大
径位置。FIG. 1 is a front view showing a pocket portion of the cage of the embodiment,
FIG. 2 is a front view showing another embodiment, FIG. 3 is a front view showing another embodiment, FIG. 4 is a sectional view showing a self-aligning roller bearing, and FIG. 5 shows a conventional cage. FIG. 6 is a view showing a load state of a roller in the bearing, and FIG. 7 is a front view showing another conventional example. 1, 1 '... retainer, 2 ... annular part, 3 ... pillar part, 4,
4 ', 4 "... pocket, 5, 5' ... curved surface, 6 ... cylindrical surface, 7 ... roller, 8, 9 ... track ring, A ... roller maximum diameter position.
Claims (1)
する複数の柱部を形成し、その隣接する対の柱部と環状
部との間で、ころをその軸線が軸方向に沿うように収納
するポケットを形成した自動調心ころ軸受の保持器にお
いて、上記ポケットにおける柱部の根元部の表面を、こ
ろの周面形状に沿った曲面で形成し、それ以外の柱部の
表面を、ポケットの中心軸を軸線とする円筒面で形成し
たことを特徴とする自動調心ころ軸受の保持器。1. A plurality of pillars projecting in the axial direction at predetermined intervals on an end face of an annular portion, and between the adjacent pair of pillars and the annular portion, a roller extends in an axial direction. In the cage of the self-aligning roller bearing formed with the pocket to be stored along, the surface of the base of the column in the pocket is formed by a curved surface along the peripheral shape of the roller, and the other column is formed by a curved surface. A cage for a self-aligning roller bearing, wherein the surface is formed by a cylindrical surface whose axis is the axis of a pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990130406U JP2524932Y2 (en) | 1990-11-30 | 1990-11-30 | Cage of spherical roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990130406U JP2524932Y2 (en) | 1990-11-30 | 1990-11-30 | Cage of spherical roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0487021U JPH0487021U (en) | 1992-07-29 |
| JP2524932Y2 true JP2524932Y2 (en) | 1997-02-05 |
Family
ID=31877749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990130406U Expired - Fee Related JP2524932Y2 (en) | 1990-11-30 | 1990-11-30 | Cage of spherical roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2524932Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006057258A1 (en) * | 2004-11-24 | 2006-06-01 | Nsk Ltd. | Self-aligning roller bearing with retainer and method of manufacturing the retainer for the self-aligning roller bearing |
| CN100489328C (en) * | 2004-11-24 | 2009-05-20 | 日本精工株式会社 | Self-aligning roller bearing with retainer and method of manufacturing the retainer for the self-aligning roller bearing |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017078480A (en) * | 2015-10-21 | 2017-04-27 | 日本精工株式会社 | Self-aligning roller bearing |
| DE102019112405A1 (en) * | 2019-05-13 | 2020-11-19 | Schaeffler Technologies AG & Co. KG | Milling tool and method for manufacturing a rolling bearing cage |
-
1990
- 1990-11-30 JP JP1990130406U patent/JP2524932Y2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006057258A1 (en) * | 2004-11-24 | 2006-06-01 | Nsk Ltd. | Self-aligning roller bearing with retainer and method of manufacturing the retainer for the self-aligning roller bearing |
| CN100489328C (en) * | 2004-11-24 | 2009-05-20 | 日本精工株式会社 | Self-aligning roller bearing with retainer and method of manufacturing the retainer for the self-aligning roller bearing |
| JP2011158097A (en) * | 2004-11-24 | 2011-08-18 | Nsk Ltd | Self-aligning roller bearing with retainer |
| US8007184B2 (en) | 2004-11-24 | 2011-08-30 | Nsk Ltd. | Self-aligning roller bearing with retainer and manufacturing method for self-aligning roller bearing retainer |
| JP4803031B2 (en) * | 2004-11-24 | 2011-10-26 | 日本精工株式会社 | Method for manufacturing cage for spherical roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0487021U (en) | 1992-07-29 |
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| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |