JPH09317760A - Self-aligning roller bearing - Google Patents

Self-aligning roller bearing

Info

Publication number
JPH09317760A
JPH09317760A JP8136628A JP13662896A JPH09317760A JP H09317760 A JPH09317760 A JP H09317760A JP 8136628 A JP8136628 A JP 8136628A JP 13662896 A JP13662896 A JP 13662896A JP H09317760 A JPH09317760 A JP H09317760A
Authority
JP
Japan
Prior art keywords
rows
rollers
self
cage
inner ring
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.)
Pending
Application number
JP8136628A
Other languages
Japanese (ja)
Inventor
Takashi Yagi
隆司 八木
Takeshi Maeda
剛 前田
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.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing 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 NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Priority to JP8136628A priority Critical patent/JPH09317760A/en
Publication of JPH09317760A publication Critical patent/JPH09317760A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/46Cages for rollers or needles
    • F16C33/48Cages for rollers or needles for multiple rows of rollers or needles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06Ball or roller bearings
    • F16C23/08Ball or roller bearings self-adjusting
    • F16C23/082Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/086Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/46Cages for rollers or needles
    • F16C33/4605Details of interaction of cage and race, e.g. retention or centring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/46Cages for rollers or needles
    • F16C33/4617Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4623Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings 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
    • F16C19/34Bearings 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
    • F16C19/38Bearings 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

Abstract

PROBLEM TO BE SOLVED: To provide a self-aligning roller bearing having a superior lubricating performance in a splash lubrication. SOLUTION: A self-aligning roller bearing is constructed so that two rows of rollers 12 held by a holder 11 are present between an inner race 16 and an outer race 15, the holder 11 is guided by the outer race and the two rows of rollers 12 are contacted with the inner race at their opposing end surfaces, wherein an outer diameter surface of the inner race 16 has two rows of rolling surfaces and continuous from each of the rolling surfaces to the outer end of the outer diameter without having any steps, and the holder 11 is comprised of an annular member 13 passing between the two rows of the rollers 12, columns 14 extending in an axial direction with a spacing of the roller at both side surfaces and an outer annular member 18 integrally formed with the outer end of each of the columns 14.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】この発明は、振動スクリーン
等の回転荷重や振動衝撃荷重を受けやすい場所に用いら
れる自動調心ころ軸受に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-aligning roller bearing used in a place such as a vibrating screen which is easily subjected to a rotating load or a vibration impact load.

【0002】[0002]

【従来の技術】従来用いられている自動調心ころ軸受
は、内輪と外輪の間に保持器が保持された2列のころが
介在されており、図5に示すように、その保持器1は、
2列のころ2の間を通る環状体3と、その両側面にころ
2の間隔をおいて軸方向に櫛状に延びた柱部4とから形
成され、各ころ2は、この柱部4と隣接する柱部4の間
に形成された開放形のポケット8に保持される。また、
図6に示すように、保持器1は外輪案内されており、両
列のころ2は、その相対する端面同士が内輪側で接触す
るように配置されている。
2. Description of the Related Art In a conventionally used self-aligning roller bearing, two rows of rollers holding a cage are interposed between an inner ring and an outer ring. As shown in FIG. Is
An annular body 3 passing between two rows of rollers 2 and column portions 4 axially extending in a comb shape at intervals of the rollers 2 are formed on both side surfaces thereof. Is held in an open pocket 8 formed between the adjacent pillars 4. Also,
As shown in FIG. 6, the cage 1 is guided by the outer ring, and the rollers 2 in both rows are arranged so that the opposite end faces thereof contact each other on the inner ring side.

【0003】従来の自動調心ころ軸受は、上記の櫛状の
保持器1を有するため、各ころ2は、保持器1の柱部4
の先端方向に脱落しやすい。これを防ぐため、図6に示
すように、内輪6には、その外径側の両端面に、ころ2
の脱落を防止するためのつば7が形成されている。
Since the conventional self-aligning roller bearing has the comb-shaped cage 1 described above, each roller 2 has a column portion 4 of the cage 1.
It is easy to drop in the direction of the tip. In order to prevent this, as shown in FIG. 6, the inner ring 6 has rollers 2 on its outer diameter side end faces.
A brim 7 is formed to prevent the falling of the rib.

【0004】このつば7により、図6及び図7に示すよ
うに、ころ2の軸受からの脱落が防止される。
As shown in FIGS. 6 and 7, the collar 7 prevents the roller 2 from falling off the bearing.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、内輪6
につば7を有しているため、飛沫潤滑においては、潤滑
油が内輪6ところ2との間に侵入するのをつば7が阻害
する。このため、軸受の潤滑不良が生じやすい。
However, the inner ring 6
Since the spout 7 has the rib 7, the spit 7 prevents the lubricating oil from entering between the inner ring 6 and the portion 2 in the droplet lubrication. Therefore, poor lubrication of the bearing is likely to occur.

【0006】そこで、この発明の課題は、飛沫潤滑にお
いても潤滑性能のよい自動調心ころ軸受を提供すること
である。
Therefore, an object of the present invention is to provide a self-aligning roller bearing having good lubricating performance even in splash lubrication.

【0007】[0007]

【課題を解決するための手段】上記の課題を解決するた
め、この発明は、内輪と外輪の間に保持器に保持された
2列のころが介在された自動調心ころ軸受において、上
記内輪の外径側の面は、2列の転動面を有すると共に、
各転動面からころ外端にわたり段差なく連続し、上記保
持器は、上記ころの2列の間を通る環状体と、その両側
面にころの間隔をおいて軸方向に延びた柱部と各柱部の
外端に一体化された外側環状体とからなる。
To solve the above problems, the present invention provides a self-aligning roller bearing in which two rows of rollers held by a cage are interposed between an inner ring and an outer ring. The outer diameter side surface of has two rows of rolling surfaces,
The cage is continuous from each rolling surface to the outer end of the roller without any step, and the cage includes an annular body passing between the two rows of the rollers, and column portions extending on the both side surfaces in the axial direction at intervals of the rollers. The outer annular body is integrated with the outer end of each pillar.

【0008】また、上記保持器は外輪案内させ、上記2
列のころは、その相対する端面同士をその内輪側で接触
させることができる。
Further, the cage is guided by an outer ring, and
The rows of rollers can be brought into contact with each other at their opposite end faces on the inner ring side.

【0009】上記内輪の外径側の面の、各転動面からこ
ろ外端にわたって段差なく連続させてつばをなくしたの
で、潤滑油がころと内輪との間に入りやすくなり、潤滑
性能を向上させることが可能となる。
Since the outer diameter side surface of the inner ring is continuously stepped from each rolling surface to the roller outer end without a step to eliminate the brim, the lubricating oil easily enters between the roller and the inner ring to improve the lubricating performance. It is possible to improve.

【0010】また、上記保持器について、従来の櫛形形
状と異なり、各柱部の外端に一体化された外側環状体を
設けたので、ころの脱落が防止される。
Further, in the cage, unlike the conventional comb shape, since the outer annular body integrated with the outer end of each pillar is provided, the rollers are prevented from falling off.

【0011】[0011]

【発明の実施の形態】以下、この発明の実施形態を図面
を参照して説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0012】この発明にかかる自動調心ころ軸受は、図
1及び図2に示すように、外輪15と内輪16の間に保
持器11に保持された2列のころ12が介在されて構成
される。また、外輪15の軌道20の中心は軸受中心と
一致しており、調心性を有している。
As shown in FIGS. 1 and 2, the self-aligning roller bearing according to the present invention comprises two rows of rollers 12 held by a cage 11 between an outer ring 15 and an inner ring 16. It Further, the center of the raceway 20 of the outer ring 15 coincides with the center of the bearing, and has the aligning property.

【0013】内輪16の外径側の面は、図1に示すよう
に、2列の転動面19を有すると共に、各転動面19か
らころ外端にわたって段差なく連続する。すなわち、内
輪16の外径面外端には、つばが形成されておらず、な
めらかに連続する。
As shown in FIG. 1, the outer diameter side surface of the inner ring 16 has two rows of rolling contact surfaces 19 and is continuous from each rolling contact surface 19 to the roller outer end without any step. That is, no brim is formed at the outer end of the outer diameter surface of the inner ring 16, and the inner ring 16 is smoothly continuous.

【0014】また、保持器11は、図1〜図3に示すよ
うに、ころ12の2列の間を通る環状体13と、その両
側面にころの間隔をおいて軸方向に延びた柱部14と各
柱部14の外端に一体化された外側環状体18とから構
成される。
As shown in FIGS. 1 to 3, the cage 11 includes an annular body 13 passing between two rows of rollers 12 and a column extending in the axial direction on both side surfaces of the annular body 13 at intervals of the rollers. It comprises a portion 14 and an outer annular body 18 integrated with the outer end of each pillar portion 14.

【0015】この保持器11は、図3に示すように、従
来の櫛形ではなく、外側環状体18を有しているので、
保持器11のポケット21は閉鎖形のポケットを形成
し、保持器11の形状は、上記閉鎖形のポケット21を
有するかご型を形成している。このため、図4に示すよ
うに、外側環状体18がころ12の外端面を覆っている
ので、上記のように、内輪16外端につばを設けなくて
もころ12が軸受から脱落するのを防止する。
As shown in FIG. 3, the retainer 11 has an outer annular body 18 instead of the conventional comb shape, so that
The pocket 21 of the retainer 11 forms a closed pocket, and the retainer 11 has a cage shape having the closed pocket 21. Therefore, as shown in FIG. 4, since the outer annular body 18 covers the outer end surface of the roller 12, the roller 12 does not fall out of the bearing without providing a collar on the outer end of the inner ring 16 as described above. Prevent.

【0016】この保持器11は、軸受使用時の保持器の
振動を低下させるため、図1に示すように、外輪案内さ
れている。
The cage 11 is guided to the outer ring as shown in FIG. 1 in order to reduce the vibration of the cage when the bearing is used.

【0017】上記の2列のころ12は、図1に示すよう
に、その相対する端面同士が内輪側で接触するように配
置させてもよい。この接触はころがり接触となり、摩擦
や摩耗等を減らすことができる。
As shown in FIG. 1, the above two rows of rollers 12 may be arranged so that the opposite end surfaces thereof contact each other on the inner ring side. This contact becomes a rolling contact, and friction and wear can be reduced.

【0018】[0018]

【発明の効果】この発明によれば、上記内輪の外径側の
面の、各転動面からころ外端にわたって段差なく連続さ
せてつばをなくしたので、潤滑油がころと内輪との間に
入りやすくなり、潤滑性能を向上させることが可能とな
った。
According to the present invention, the outer diameter side surface of the inner ring is continuously formed from each rolling surface to the outer end of the roller without any step so that the brim is eliminated. It became easier to enter and it became possible to improve the lubrication performance.

【0019】また、上記保持器について、従来の櫛形形
状と異なり、各柱部の外端に一体化された外側環状体を
設けてかご型としたので、ころの脱落が防止され、さら
に、上記保持器の柱部が上記環状体と外側環状体2つで
保持されるので、この柱部の強度を上げられる。
Further, unlike the conventional comb shape, the cage has a cage shape in which an outer annular body integrated with the outer end of each column portion is provided, so that the rollers can be prevented from falling off, and further, the above-mentioned cage can be prevented. Since the pillar portion of the cage is held by the annular body and the two outer annular bodies, the strength of the pillar portion can be increased.

【0020】さらに、この発明にかかる軸受は、従来の
ものと同様に保持器が外輪案内されているので、軸受使
用時の保持器の振動を低下させることができる。
Further, in the bearing according to the present invention, since the cage is guided by the outer ring as in the conventional case, the vibration of the cage when the bearing is used can be reduced.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明にかかる自動調心軸受の例を示す横断
断面図
FIG. 1 is a cross sectional view showing an example of a self-aligning bearing according to the present invention.

【図2】図1の縦断断面図FIG. 2 is a longitudinal sectional view of FIG. 1;

【図3】図1の自動調心軸受の保持器の例を示す一部拡
大斜視図
FIG. 3 is a partially enlarged perspective view showing an example of a cage of the self-aligning bearing of FIG.

【図4】図1の正面図FIG. 4 is a front view of FIG. 1;

【図5】従来の自動調心軸受の保持器を示す一部拡大斜
視図
FIG. 5 is a partially enlarged perspective view showing a cage of a conventional self-aligning bearing.

【図6】従来の自動調心軸受を示す横断断面図FIG. 6 is a cross-sectional view showing a conventional self-aligning bearing.

【図7】図6の正面図FIG. 7 is a front view of FIG. 6;

【符号の説明】 1 保持器 2 ころ 3 環状体 4 柱部 5 外輪 6 内輪 7 つば 8 開放形ポケット 11 保持器 12 ころ 13 環状体 14 柱部 15 外輪 16 内輪 18 外側環状体 19 転動面 20 外輪軌道 21 閉鎖形ポケット 22 突起部 23 凹部[Explanation of Codes] 1 cage 2 roller 3 annular body 4 column portion 5 outer ring 6 inner ring 7 collar 8 open type pocket 11 cage 12 roller 13 annular body 14 column portion 15 outer ring 16 inner ring 18 outer annular body 19 rolling surface 20 Outer ring raceway 21 Closed pocket 22 Protrusion 23 Recess

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 内輪と外輪の間に保持器に保持された2
列のころが介在された自動調心ころ軸受において、 上記内輪の外径側の面は、2列の転動面を有すると共
に、各転動面からころ外端にわたり段差なく連続し、 上記保持器は、上記ころの2列の間を通る環状体と、そ
の両側面にころの間隔をおいて軸方向に延びた柱部と各
柱部の外端に一体化された外側環状体とからなる自動調
心ころ軸受。
1. A retainer (2) held by a retainer between an inner race and an outer race.
In a self-aligning roller bearing in which rows of rollers are interposed, the outer diameter side surface of the inner ring has two rows of rolling surfaces and is continuous from each rolling surface to the roller outer end without a step, The container is composed of an annular body passing between the two rows of rollers, a columnar portion extending in the axial direction on both side surfaces thereof with a space between the rollers, and an outer annular body integrated with the outer end of each columnar portion. Spherical roller bearings.
【請求項2】 上記保持器は外輪案内され、上記2列の
ころは、その相対する端面同士がその内輪側で接触する
請求項1に記載の自動調心軸受。
2. The self-aligning bearing according to claim 1, wherein the cage is guided by an outer ring, and the two rows of rollers have their end faces facing each other on the inner ring side.
JP8136628A 1996-05-30 1996-05-30 Self-aligning roller bearing Pending JPH09317760A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8136628A JPH09317760A (en) 1996-05-30 1996-05-30 Self-aligning roller bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8136628A JPH09317760A (en) 1996-05-30 1996-05-30 Self-aligning roller bearing

Publications (1)

Publication Number Publication Date
JPH09317760A true JPH09317760A (en) 1997-12-09

Family

ID=15179758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8136628A Pending JPH09317760A (en) 1996-05-30 1996-05-30 Self-aligning roller bearing

Country Status (1)

Country Link
JP (1) JPH09317760A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011027662A1 (en) 2009-09-07 2011-03-10 Ntn株式会社 Sealed rolling bearing
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
US8157521B2 (en) 2010-02-10 2012-04-17 Mitsubishi Heavy Industries, Ltd. Wind turbine generator and method of controlling the same
US8657578B2 (en) 2010-02-12 2014-02-25 Mitsubishi Heavy Industries, Ltd. Gear box for wind turbine generator and wind turbine generator
JP2015140918A (en) * 2014-01-30 2015-08-03 日本精工株式会社 Self-aligning roller bearing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2011027662A1 (en) 2009-09-07 2011-03-10 Ntn株式会社 Sealed rolling bearing
US8157521B2 (en) 2010-02-10 2012-04-17 Mitsubishi Heavy Industries, Ltd. Wind turbine generator and method of controlling the same
US8657578B2 (en) 2010-02-12 2014-02-25 Mitsubishi Heavy Industries, Ltd. Gear box for wind turbine generator and wind turbine generator
JP2015140918A (en) * 2014-01-30 2015-08-03 日本精工株式会社 Self-aligning roller bearing

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