JP2001140874A - Self-aligning roller bearing - Google Patents
Self-aligning roller bearingInfo
- Publication number
- JP2001140874A JP2001140874A JP31796499A JP31796499A JP2001140874A JP 2001140874 A JP2001140874 A JP 2001140874A JP 31796499 A JP31796499 A JP 31796499A JP 31796499 A JP31796499 A JP 31796499A JP 2001140874 A JP2001140874 A JP 2001140874A
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- roller
- guide wheel
- ring
- rollers
- 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
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
- 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
-
- 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
- F16C33/37—Loose spacing bodies
-
- 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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動調心ころ軸受
に関する。The present invention relates to a self-aligning roller bearing.
【０００２】[0002]
【従来の技術】自動調心ころ軸受は、外輪軌道面が球面
形状を有しており、かかる軌道面を転動するころは樽形
又は鼓形となっていて、動作時に、軸受中心と軸心とが
自動的に調心されるようになっている。2. Description of the Related Art A self-aligning roller bearing has an outer raceway surface having a spherical shape, and the rolling surface of the raceway surface has a barrel shape or a drum shape. The mind is automatically aligned.
【０００３】ところで、自動調心ころ軸受においては、
スキューに関わる本来的な問題がある。スキューとは、
軌道面に沿ってころが転動する際に、ころの進行方向に
対して、その両端が振れ、ころが正規の自転軸に対して
傾く現象をいう。かかるスキューが生じると、発熱量の
増大などが生じ、軸受の寿命を短くする恐れがある。[0003] By the way, in spherical roller bearings,
There is an inherent problem with skew. What is skew?
When a roller rolls along a raceway surface, both ends of the roller run in the traveling direction of the roller, and the roller is inclined with respect to a normal rotation axis. When such a skew occurs, an increase in the amount of heat generated occurs, and the life of the bearing may be shortened.
【０００４】このようなスキューを制御するために、複
列ころの間にリング状の案内輪を配置した構成が知られ
ている。かかる案内輪は、各ころの側面に当接して、こ
ろの傾きを抑制する機能を有する。In order to control such skew, a configuration in which a ring-shaped guide wheel is disposed between double row rollers is known. Such a guide wheel has a function of contacting the side surface of each roller to suppress the inclination of the rollers.
【０００５】[0005]
【発明が解決しようとする課題】ところで、案内輪は外
輪の中央に配置されるが、外輪内周が内凹形状を有して
いる場合、軸線方向両端の内径は、中央の内径よりも小
さくなる。ここで、案内輪は、軸受の軸線方向長さを抑
え、かつスキュー制御を適切に行うために、外輪の中央
において内周に当接させるようにすることが好ましいか
ら、外輪の中央内径とほぼ等しい外径を有している必要
がある。ところが、このような案内輪は、外輪の軸線方
向両端の内径よりも外径が大きいことから、そのままで
は外輪へ組み込みことができないという問題が生じる。By the way, the guide wheel is arranged at the center of the outer ring. When the inner periphery of the outer ring has an inner concave shape, the inner diameters at both ends in the axial direction are smaller than the inner diameter at the center. Become. Here, it is preferable that the guide wheel be brought into contact with the inner periphery at the center of the outer ring in order to suppress the axial length of the bearing and appropriately perform the skew control. Must have equal outer diameter. However, such a guide wheel has a problem that it cannot be incorporated into the outer ring as it is because the outer diameter is larger than the inner diameter of both ends in the axial direction of the outer ring.
【０００６】このような問題に対し、例えばＥＰ公開特
許第２２５９７５号に開示された技術によれば、案内輪
の外周の一部を切り取ることにより、外輪の軸線方向両
端の内径よりも小さい幅の部分を形成し、かかる幅の部
分を、外輪の軸線方向両端内周に対向させつつ案内輪を
組み込むようにしている。かかる構成によれば、案内輪
を外輪内に容易に組み込むことができるが、切り取られ
た外周の部分では外輪内周とのすき間が大となっている
ことから、ころと共に案内輪が転動する際に、スムーズ
な回転が得られず、すき間大の部分が下方に来たとき
に、案内輪が落下するような動きをし、それにより振動
を生じさせる恐れがある。このような案内輪の動作は、
ころに対するスキュー制御を悪化させて、軸受の発熱量
増大を招くと共に、摺動部の早期摩耗等を引き起こす恐
れがある。In order to solve such a problem, for example, according to the technique disclosed in EP-A-225975, a part of the outer periphery of the guide wheel is cut off so that the outer ring has a width smaller than the inner diameter of both ends in the axial direction. A portion is formed, and the guide wheel is incorporated with the portion having such a width facing the inner circumference of both ends in the axial direction of the outer ring. According to this configuration, the guide wheel can be easily incorporated into the outer ring. However, since the clearance between the outer periphery and the outer periphery of the outer periphery is large, the guide wheel rolls together with the rollers. In such a case, smooth rotation cannot be obtained, and when the large gap portion comes down, the guide wheel may move so as to fall, thereby causing vibration. The operation of such a guide wheel is
The skew control for the rollers may be deteriorated to increase the calorific value of the bearing, and may cause early wear of the sliding portion.
【０００７】一方、特開平９−２１００５６号に開示さ
れた技術によれば、案内輪を半径方向に二分割し、個々
に外輪内に挿入して、外輪内で案内輪として組み立てる
ようにしている。ところが、案内輪が半径方向に二分割
されたような構成では、周方向に少なくとも二箇所の不
連続な部分が生じるため、ころに対するスキュー制御が
悪化し、軸受の発熱量増大を招く恐れがある。また、分
割された案内輪を外輪に組み入れることは、作業の複雑
化を招くという問題もある。On the other hand, according to the technique disclosed in Japanese Patent Application Laid-Open No. 9-210056, the guide wheel is divided into two parts in the radial direction, individually inserted into the outer ring, and assembled as a guide wheel in the outer ring. . However, in a configuration in which the guide wheel is divided into two in the radial direction, at least two discontinuous portions are generated in the circumferential direction, so that skew control for the rollers is deteriorated, and there is a possibility that the heat generation of the bearing may increase. . Incorporating the divided guide wheels into the outer wheel also has the problem of complicating the operation.
【０００８】これに対し、内輪の軸線方向中央に案内輪
を設けるようにすれば、完全円形リング状の案内輪を外
輪の内側に組み込むことが可能であるが、軸受の軸線方
向長さを一定とすると、その分だけころの長さを短くせ
ざるを得ず、それにより軸受の負荷容量が低下し、寿命
が短くなるという問題が生じる。On the other hand, if the guide ring is provided at the center of the inner ring in the axial direction, a complete circular ring-shaped guide wheel can be incorporated inside the outer ring, but the axial length of the bearing is fixed. In this case, the roller length must be shortened by that amount, which causes a problem that the load capacity of the bearing is reduced and the life is shortened.
【０００９】加えて、従来技術による自動調心ころ軸受
の一タイプにおいては、保持器にころを嵌め込んだ状態
で、内輪と外輪との間にころと保持器とを一体的に組み
付けるようになっているが、案内輪と同様な理由によ
り、各列において１個のころを予め取り外した状態で組
付けを行い、保持器が内輪と外輪との適所に収まった後
に、最後のころを組み付けるようにしている。しかしな
がら、このような構成では、組み付け作業に時間がかか
るという問題がある。In addition, in one type of the self-aligning roller bearing according to the prior art, the rollers and the cage are integrally assembled between the inner ring and the outer ring while the rollers are fitted into the cage. However, for the same reason as for the guide wheels, assembly is performed with one roller removed in each row in advance, and the last roller is assembled after the retainer is in place between the inner ring and the outer ring. Like that. However, in such a configuration, there is a problem that the assembling operation takes time.
【００１０】本発明は、かかる従来技術の問題に鑑み、
軸受寿命を確保しつつも、より作業性を向上させた自動
調心ころを提供することを目的とする。The present invention has been made in view of the above-mentioned problems of the prior art,
An object of the present invention is to provide a self-aligning roller in which workability is further improved while ensuring a bearing life.
【００１１】[0011]
【課題を解決するための手段】本発明の自動調心ころ軸
受は、外輪と、内輪と、前記外輪と前記内輪との間に二
列に配置された複数のころと、前記ころの列間に配置さ
れ、前記外輪の内周に当接した案内輪とを有し、前記外
輪は、その軸線方向に二分割されており、二分割された
部分には、前記ころの軌道面がそれぞれ形成されてい
る。SUMMARY OF THE INVENTION A self-aligning roller bearing according to the present invention comprises an outer ring, an inner ring, a plurality of rollers disposed in two rows between the outer ring and the inner ring; And a guide wheel that is in contact with the inner periphery of the outer ring, and the outer ring is divided into two in the axial direction, and the raceway surface of the roller is formed in each of the divided parts. Have been.
【００１２】[0012]
【作用】本発明の自動調心ころ軸受によれば、外輪と、
内輪と、前記外輪と前記内輪との間に二列に配置された
複数のころと、前記ころの列間に配置され、前記外輪の
内周に当接した案内輪とを有し、前記外輪は、その軸線
方向に二分割されており、二分割された部分には、前記
ころの軌道面がそれぞれ形成されているので、例えば案
内輪が完全円形リング状を有していたとしても、二分割
された外輪により挟持するように取り付ければ、案内輪
を容易に取り付けることができる。又、保持器ところと
を一体で組み込む際にも、二分割された外輪により挟持
するように取り付ければ、予めころを取り外しておく必
要はなく作業効率が向上する。According to the self-aligning roller bearing of the present invention, the outer ring,
An inner ring, a plurality of rollers arranged in two rows between the outer ring and the inner ring, and a guide wheel arranged between the rows of rollers and in contact with an inner periphery of the outer ring; Is divided into two in the axial direction, and the track surfaces of the rollers are formed in the two divided parts, so that even if the guide wheel has a perfect circular ring shape, for example, The guide wheel can be easily attached if it is attached so as to be sandwiched by the divided outer rings. In addition, when the retainer is integrally incorporated, if it is mounted so as to be sandwiched by the two divided outer races, it is not necessary to remove the rollers in advance, thereby improving the working efficiency.
【００１３】[0013]
【発明の実施の形態】以下、図面を参照して本発明の実
施の形態について詳細に説明する。図１は、第１の実施
の形態にかかる自動調心ころ軸受の軸線方向断面図であ
る。図１において、複列の自動調心ころ軸受は、内輪１
０と、外輪２０と、内輪１０と外輪２０との間に二列に
配置されたころ３０と、案内輪４０と、保持器５０とか
らなる。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an axial sectional view of the spherical roller bearing according to the first embodiment. In FIG. 1, a double-row spherical roller bearing has an inner ring 1
0, outer ring 20, rollers 30 arranged in two rows between inner ring 10 and outer ring 20, guide wheel 40, and retainer 50.
【００１４】内輪１０は、外周に内輪軌道面１０ａ、１
０ｂを形成している。外輪２０は、軸線方向に二分割さ
れ、すなわち同形状の外輪部材２１，２２を対向するこ
とにより構成されている。外輪部材２１，２２は、それ
ぞれ内周に外輪軌道面２１ａ、２２ａを有している。内
輪軌道面１０ａ、１０ｂと、外輪軌道面２１ａ、２２ａ
は、樽形のころ３０の外形に相補する形状の曲面を有
し、従って内輪軌道面１０ａと外輪軌道面２１ａとに沿
って、左方のころ３０が転動自在となっており、一方内
輪軌道面１０ｂと外輪軌道面２２ａとに沿って、右方の
ころ３０が転動自在となっている。The inner race 10 has inner raceway surfaces 10a, 1
0b. The outer ring 20 is divided into two parts in the axial direction, that is, the outer ring members 21 and 22 having the same shape are opposed to each other. The outer race members 21 and 22 have outer raceway surfaces 21a and 22a on the inner circumference, respectively. Inner ring raceway surfaces 10a, 10b and outer ring raceway surfaces 21a, 22a
Has a curved surface complementary to the outer shape of the barrel-shaped roller 30, so that the left roller 30 is free to roll along the inner raceway surface 10a and the outer raceway surface 21a. The right roller 30 is free to roll along the raceway surface 10b and the outer raceway surface 22a.
【００１５】左方のころ３０と右方のころ３０とに挟持
されるようにして、リング状の案内輪４０が配置されて
いる。案内輪４０は、軸線方向断面が下辺の短い台形状
を有しており、その外周面４０ａが、外輪２０の中央内
周面（すなわち外輪部材２１の右端内周面及び外輪部材
２２の左端内周面）にわずかなすき間で対向するように
配置されている。案内輪４０の傾斜した軸線方向両面４
０ｂ、４０ｃは、ころ３０の端面３０ａに対し当接して
いる。A ring-shaped guide wheel 40 is arranged so as to be sandwiched between the left roller 30 and the right roller 30. The guide wheel 40 has a trapezoidal shape whose axial section is short at the lower side. (Peripheral surface) so as to face each other with a small gap. Slanted axial direction both sides 4 of guide wheel 40
0b and 40c are in contact with the end face 30a of the roller 30.
【００１６】案内輪４０の半径方向内方には、保持器５
０が配置されている。保持器５０は、リング状の本体５
１と、本体５１から軸線方向両側に延在して、各ころ３
０を転動方向前後で抑える柱部５２とからなる。A retainer 5 is provided radially inward of the guide wheel 40.
0 is arranged. The retainer 50 includes a ring-shaped main body 5.
1, extending from the main body 51 on both sides in the axial direction,
And a column portion 52 for suppressing 0 in the rolling direction.
【００１７】次に、本実施の形態の動作について説明す
る。内輪１０と外輪２０とが相対回転を行うと、内輪軌
道面１０ａと外輪軌道面２１ａとに沿って、左方のころ
３０が転動し、内輪軌道面１０ｂと外輪軌道面２２ａと
に沿って、右方のころ３０が転動するが、このときころ
３０と共に回転する案内輪４０の傾斜した軸線方向両面
４０ｂ、４０ｃが、ころ３０の端面３０ａに対し当接す
ることによって、ころ３０の回転軸の傾きを抑える。こ
のようなスキュー制御を行うことによって、ころ３０に
適切な転動を行わせ、それにより軸受の発熱を極力抑制
することができる。Next, the operation of this embodiment will be described. When the inner ring 10 and the outer ring 20 perform relative rotation, the left roller 30 rolls along the inner ring raceway surface 10a and the outer ring raceway surface 21a, and along the inner ring raceway surface 10b and the outer ring raceway surface 22a. The right roller 30 rolls, and at this time, the inclined axial surfaces 40b and 40c of the guide wheel 40 which rotates together with the roller 30 abut on the end face 30a of the roller 30, whereby the rotating shaft of the roller 30 is rotated. The inclination of By performing such skew control, it is possible to cause the rollers 30 to perform appropriate rolling, thereby suppressing heat generation of the bearing as much as possible.
【００１８】本実施の形態の組み付け態様について説明
すると、まず内輪１０の半径方向外方に、保持器５０と
案内輪４０とを配置して、保持器５０の柱部５２の間の
ポケットにころ３０を両側から組み込んで、内輪軌道面
１０ａ、１０ｂ上に配置する。その後、両側から、外輪
部材２１，２２とを対向させる。外輪部材２１，２２の
向かい合う端面同士がつき合わさったとき、丁度ころ３
０が外輪軌道面２１ａ、２２ａ上に位置するようになっ
ている。The assembling mode of the present embodiment will be described. First, a retainer 50 and a guide wheel 40 are arranged radially outward of the inner ring 10, and the roller is inserted into a pocket between the column portions 52 of the retainer 50. 30 are assembled from both sides and arranged on the inner raceway surfaces 10a and 10b. Thereafter, the outer ring members 21 and 22 are opposed from both sides. When the opposing end faces of the outer ring members 21 and 22 come into contact with each other, the rollers 3
0 is located on the outer raceway surfaces 21a and 22a.
【００１９】本実施の形態によれば、案内輪４０の外径
φ１が、外輪２０の軸線方向外側端部内径φ２よりも大
きい場合でも、外輪２０内に案内輪４０を容易に組み込
むことができるため、従来技術の如く案内輪４０の外周
の一部を切り取ったり、案内輪４０を周方向に二分割す
る必要がなくなり、一体型の完全円形案内輪４０を用い
ることによって、より適切なスキュー制御を行うことが
できる。According to the present embodiment, even when the outer diameter φ1 of the guide wheel 40 is larger than the inner diameter φ2 of the outer end of the outer ring 20 in the axial direction, the guide wheel 40 can be easily incorporated into the outer ring 20. Therefore, it is not necessary to cut off a part of the outer circumference of the guide wheel 40 or divide the guide wheel 40 into two parts in the circumferential direction as in the related art, and by using the integrated complete circular guide wheel 40, it is possible to perform more appropriate skew control. It can be performed.
【００２０】図２は、本実施の形態の変形例を示す図１
と同様な断面図である。かかる変形例が、図１の実施の
形態と異なる点は、案内輪４０の外周に設けた溝４１で
ある。かかる溝４１には、例えば外輪２０に設けた油孔
（不図示）を介して軸受の外方から供給された潤滑油を
貯留することができ、かかる潤滑油を用いて、互いに摺
動し合う外輪２０の内周面と案内輪４０の外周面とを潤
滑することができるため、その摩耗量が低減するという
効果が得られる。その他の点については、図１の構成と
同一であるため、説明を省略する。FIG. 2 is a diagram showing a modification of the present embodiment.
It is sectional drawing similar to. This modified example is different from the embodiment of FIG. 1 in a groove 41 provided on the outer periphery of a guide wheel 40. In such a groove 41, for example, lubricating oil supplied from the outside of the bearing via an oil hole (not shown) provided in the outer ring 20 can be stored. Since the inner peripheral surface of the outer ring 20 and the outer peripheral surface of the guide wheel 40 can be lubricated, the effect of reducing the amount of wear can be obtained. In other respects, the configuration is the same as that of FIG.
【００２１】図３は、第２の実施の形態にかかる、ケー
ジアンドローラタイプと呼ばれる自動調心ころ軸受を分
解した状態で示す軸線方向断面図である。第２の実施の
形態が、図１の実施の形態と異なる点は、保持器１５０
の形状である。その他の構成については、図１の構成と
同様であるため、説明を省略する。FIG. 3 is an axial sectional view showing an exploded state of a self-aligning roller bearing called a cage and roller type according to the second embodiment. The difference between the second embodiment and the embodiment of FIG.
It is the shape of. The other configuration is the same as the configuration in FIG.
【００２２】より具体的には、保持器１５０は、各列の
ころ３０を保持することができるように、同形状のもの
が２つ対向して配置されるようになっている。各保持器
１５０は、ころ３０に対して軸線方向外方端面に当接す
るリング状の本体１５１と、本体１５１から軸線方向に
延在し、ころ３０を保持する柱部１５２とから構成され
ている。More specifically, two cages of the same shape are arranged facing each other so as to be able to hold the rollers 30 in each row. Each of the retainers 150 includes a ring-shaped main body 151 abutting on an outer end face in the axial direction with respect to the roller 30, and a column 152 extending in the axial direction from the main body 151 and holding the roller 30. .
【００２３】ここで、外輪部材２１，２２の軸線方向外
側端部内径φ２は、ころ３０の外接円直径φ３よりも小
さいため、外輪部材２１，２２が既に組み上がった状態
では、保持器１５０ところ３０とを一体で組み入れるこ
とはできない。従って、外輪２０が元々一体である従来
技術においては、保持器１５０より少なくとも１個のこ
ろ３０を抜き取って、抜き取られた幅の狭い部分を、外
輪部材２１（又は２２）の軸線方向外側端部内周に対向
させつつ組み入れなくてはならなかった。Here, the inner diameter φ2 of the outer ring members 21 and 22 at the axially outer end portions is smaller than the circumscribed circle diameter φ3 of the roller 30. Therefore, when the outer ring members 21 and 22 are already assembled, the retainer 150 30 cannot be incorporated as one. Therefore, in the prior art in which the outer ring 20 is originally integral, the at least one roller 30 is extracted from the retainer 150, and the extracted narrow portion is formed in the axially outer end of the outer ring member 21 (or 22). It had to be incorporated while facing the circumference.
【００２４】これに対し、本実施の形態によれば、外輪
部材２１，２２の軸線方向外側端部内径φ２が、ころ３
０の外接円直径φ３より小さい場合でも、内輪１０に対
して両側から保持器１５０ところ３０とを一体で組み入
れた後、その両側から外輪部材２１，２２を対向するよ
うにして組み付けることができ、それにより自動調心こ
ろ軸受の組立を容易に行うことができる。On the other hand, according to the present embodiment, the inner diameter φ2 of the outer ring members 21 and 22 at the axially outer end portions is equal to that of the roller 3
Even if the diameter is smaller than the circumscribed circle diameter φ3 of 0, after the retainer 150 and the place 30 are integrally incorporated into the inner ring 10 from both sides, the outer ring members 21 and 22 can be assembled from both sides so as to face each other. Thereby, assembly of the self-aligning roller bearing can be easily performed.
【００２５】ところで、ころを保持する保持器におい
て、柱部の外接円径を大きくすれば、保持器の肉厚を上
げてその強度を高めることができる。ところが、外輪が
元々一体である従来技術においては、保持器自体を、外
輪の軸線方向外側端部内径を超えるほど大径化すると、
たとえ全てのころを外した状態でも保持器の組み入れが
不可能となってしまう。これに対し、本実施の形態によ
れば、かかる不具合を解消して、より大径の保持器を組
み付けることが可能となる。これを、図４に示す変形例
を用いて説明する。By the way, in the cage for holding the rollers, if the diameter of the circumscribed circle of the pillar portion is increased, the thickness of the cage can be increased to increase the strength. However, in the prior art in which the outer ring is originally integral, when the retainer itself is made larger in diameter than the inner diameter of the outer end of the outer ring in the axial direction,
Even if all the rollers are removed, it becomes impossible to incorporate the cage. On the other hand, according to the present embodiment, it is possible to solve such a problem and to assemble a cage having a larger diameter. This will be described using a modification shown in FIG.
【００２６】図４は、本実施の形態の変形例を示す図３
と同様な断面図である。保持器２５０が、図３の保持器
１５０に対して大径化している点のみが異なり、その他
の構成は同じである。図４において、保持器２５０の柱
部２５２の外接円径φ４が、外輪部材２１，２２の軸線
方向外側端部内径φ２よりも大きくなっているため、か
かる保持器２５０は、外輪２０が一体であると仮定する
と、軸受に組み入れ不可能なものである。FIG. 4 is a diagram showing a modification of the present embodiment.
It is sectional drawing similar to. The only difference is that the retainer 250 is larger in diameter than the retainer 150 of FIG. 3, and the other configuration is the same. In FIG. 4, the circumscribed circle diameter φ4 of the pillar portion 252 of the retainer 250 is larger than the inner diameter φ2 of the outer end members in the axial direction of the outer ring members 21 and 22. Assuming that they are, they cannot be incorporated into bearings.
【００２７】しかしながら、外輪２０が二分割されてい
る本変形例によれば、内輪１０に対して両側から保持器
２５０ところ３０とを一体で組み入れた後、その両側か
ら外輪部材２１，２２を対向するようにして組み付ける
ことができる。従って、外輪部材２１，２２の軸線方向
外側端部内径φ２が、保持器２５０の外接円直径φ４よ
り小さい場合でも、その組み付けには何ら影響がなく、
よって保持器２５０の肉厚を厚く設定するなど、保持器
２５０の設計の自由度が向上することとなる。However, according to this modification in which the outer race 20 is divided into two parts, after the retainers 250 and 30 are integrally incorporated into the inner race 10 from both sides, the outer race members 21 and 22 are opposed from both sides. It can be assembled as follows. Therefore, even if the inner diameter φ2 of the outer ring members 21 and 22 in the axial direction is smaller than the circumscribed circle diameter φ4 of the retainer 250, there is no effect on the assembly.
Therefore, the degree of freedom in designing the cage 250 is improved, for example, by setting the thickness of the cage 250 to be large.
【００２８】以上、本発明を実施の形態を参照して説明
してきたが、本発明は上記実施の形態に限定して解釈さ
れるべきではなく、適宜変更・改良が可能であることは
もちろんである。たとえば、外輪の軌道面が凸状になっ
ており、鼓形のころを用いる自動調心ころ軸受に関して
も、本発明は適用可能である。As described above, the present invention has been described with reference to the embodiments. However, the present invention should not be construed as being limited to the above embodiments, and it is needless to say that modifications and improvements can be made as appropriate. is there. For example, the present invention is applicable to a self-aligning roller bearing using a drum-shaped roller in which the raceway surface of the outer ring is convex.
【００２９】[0029]
【発明の効果】本発明の自動調心ころ軸受によれば、外
輪と、内輪と、前記外輪と前記内輪との間に二列に配置
された複数のころと、前記ころの列間に配置され、前記
外輪の内周に当接した案内輪とを有し、前記外輪は、そ
の軸線方向に二分割されており、二分割された部分に
は、前記ころの軌道面がそれぞれ形成されているので、
例えば案内輪が完全円形リング状を有していたとして
も、二分割された外輪により挟持するように取り付けれ
ば、案内輪を容易に取り付けることができる。又、保持
器ところとを一体で組み込む際にも、二分割された外輪
により挟持するように取り付ければ、予めころを取り外
しておく必要はなく作業効率が向上する。According to the self-aligning roller bearing of the present invention, an outer ring, an inner ring, a plurality of rollers arranged in two rows between the outer ring and the inner ring, and a plurality of rollers arranged between the rows of rollers are provided. A guide wheel in contact with the inner periphery of the outer ring, the outer ring is divided into two in the axial direction thereof, and the two divided parts are formed with the raceway surfaces of the rollers, respectively. Because
For example, even if the guide wheel has a complete circular ring shape, the guide wheel can be easily attached if it is attached so as to be sandwiched by the two divided outer rings. In addition, when the retainer is integrally incorporated, if it is mounted so as to be sandwiched by the two divided outer races, it is not necessary to remove the rollers in advance, thereby improving the working efficiency.
【図１】第１の実施の形態にかかる自動調心ころ軸受の
軸線方向断面図である。FIG. 1 is an axial sectional view of a spherical roller bearing according to a first embodiment.
【図２】本実施の形態の変形例を示す図１と同様な断面
図である。FIG. 2 is a cross-sectional view similar to FIG. 1, showing a modification of the present embodiment.
【図３】第２の実施の形態にかかる、ケージアンドロー
ラタイプと呼ばれる自動調心ころ軸受を分解した状態で
示す軸線方向断面図である。FIG. 3 is an axial sectional view showing an exploded state of a self-aligning roller bearing called a cage and roller type according to a second embodiment.
【図４】本実施の形態の変形例を示す図２と同様な断面
図である。FIG. 4 is a cross-sectional view similar to FIG. 2, showing a modification of the present embodiment.
１０ 内輪 ２０ 外輪 ２１，２２ 外輪部材 ３０ ころ ４０ 案内輪 ５０，１５０，２５０ 保持器 DESCRIPTION OF SYMBOLS 10 Inner ring 20 Outer ring 21, 22 Outer ring member 30 Roller 40 Guide wheel 50, 150, 250 Cage
───────────────────────────────────────────────────── フロントページの続き (72)発明者 海野 鉄郎 神奈川県藤沢市鵠沼神明一丁目５番50号 日本精工株式会社内 (72)発明者 城崎 喜彦 神奈川県藤沢市鵠沼神明一丁目５番50号 日本精工株式会社内 Ｆターム(参考） 3J012 AB01 BB01 CB06 DB03 EB02 FB12 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tetsuro Unno 1-5-50 Kugenuma Shinmei, Fujisawa City, Kanagawa Prefecture Inside NSK Corporation (72) Inventor Yoshihiko Kinosaki 1-5-50 Kugenuma Shinmei, Fujisawa City, Kanagawa Prefecture F-term in NSK Ltd. (reference) 3J012 AB01 BB01 CB06 DB03 EB02 FB12
Claims (1)
ろと、 前記ころの列間に配置され、前記外輪の内周に当接した
案内輪とを有し、 前記外輪は、その軸線方向に二分割されており、二分割
された部分には、前記ころの軌道面がそれぞれ形成され
ている自動調心ころ軸受。1. An outer ring, an inner ring, a plurality of rollers arranged in two rows between the outer ring and the inner ring, and a guide arranged between the rows of rollers and in contact with an inner periphery of the outer ring. A self-aligning roller bearing, comprising: a ring; and the outer ring is divided into two parts in the axial direction thereof, and the roller raceway surface is formed in each of the two divided parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31796499A JP2001140874A (en) | 1999-11-09 | 1999-11-09 | Self-aligning roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31796499A JP2001140874A (en) | 1999-11-09 | 1999-11-09 | Self-aligning roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001140874A true JP2001140874A (en) | 2001-05-22 |
Family
ID=18093972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31796499A Pending JP2001140874A (en) | 1999-11-09 | 1999-11-09 | Self-aligning roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001140874A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005050038A1 (en) * | 2003-11-18 | 2005-06-02 | Ntn Corporation | Double-row self-aligning roller bearing and device for supporting wind turbine generator main shaft |
| CN103742530A (en) * | 2013-12-28 | 2014-04-23 | 瓦房店轴承集团有限责任公司 | Special split self-aligning roller bearing for mixer truck |
| CN104791380A (en) * | 2014-01-17 | 2015-07-22 | 舍弗勒技术股份两合公司 | Self-aligning roller bearing |
| DE102014210155A1 (en) * | 2014-05-28 | 2015-12-03 | Aktiebolaget Skf | Spherical roller bearing and method for mounting a spherical roller bearing |
-
1999
- 1999-11-09 JP JP31796499A patent/JP2001140874A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005050038A1 (en) * | 2003-11-18 | 2005-06-02 | Ntn Corporation | Double-row self-aligning roller bearing and device for supporting wind turbine generator main shaft |
| US7918649B2 (en) | 2003-11-18 | 2011-04-05 | Ntn Corporation | Double-row self-aligning roller bearing and device for supporting wind turbine generator main shaft |
| CN103742530A (en) * | 2013-12-28 | 2014-04-23 | 瓦房店轴承集团有限责任公司 | Special split self-aligning roller bearing for mixer truck |
| CN104791380A (en) * | 2014-01-17 | 2015-07-22 | 舍弗勒技术股份两合公司 | Self-aligning roller bearing |
| CN104791380B (en) * | 2014-01-17 | 2019-01-08 | 舍弗勒技术股份两合公司 | self-aligning roller bearing |
| DE102014210155A1 (en) * | 2014-05-28 | 2015-12-03 | Aktiebolaget Skf | Spherical roller bearing and method for mounting a spherical roller bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3039087B2 (en) | Spherical roller bearing with cage | |
| JP2002250358A (en) | Rolling bearing unit for supporting wheel | |
| JPH07119739A (en) | Total self-aligning type roller bearing | |
| JP2000065049A (en) | Automotive hub unit and assembling method for it | |
| JP2000065049A5 (en) | ||
| JP2001140874A (en) | Self-aligning roller bearing | |
| JPH07113375B2 (en) | Rolling bearing | |
| JP2005214330A (en) | Four-point contact ball bearing and manufacturing method thereof | |
| JP2000320558A (en) | Synthetic resin made retainer for roller bearing | |
| JP4090085B2 (en) | Double-row tapered roller bearings with a centering mechanism for rotating the central axis of rolling mill rolls | |
| JP4110631B2 (en) | Assembly method for automotive hub unit | |
| JP2000130444A (en) | Double row rolling bearing unit | |
| JP2006144921A (en) | Rolling bearing | |
| JP2021060076A (en) | Hub unit bearing | |
| JP2007327518A (en) | Cylindrical roller bearing and its cage | |
| JP2000213545A (en) | Retainer for roller bearing | |
| US12025181B2 (en) | Axial bearing assembly with cage to accommodate radial misalignment condition | |
| JP2009210078A (en) | Self-aligning roller bearing | |
| US11965546B2 (en) | Bearing module for coaxial shaft ends | |
| JP4228178B2 (en) | Water pump bearing | |
| JPH11148516A (en) | Double row roller bearing device | |
| JP2009180235A (en) | Automatic self-aligning roller bearing | |
| JP2003322156A (en) | Roller bearing | |
| JP2000055056A (en) | Roller bearing | |
| JP2002188628A (en) | Automatic aligning roller bearing device |