JPS645131Y2 - - Google Patents
Info
- Publication number
- JPS645131Y2 JPS645131Y2 JP1984069608U JP6960884U JPS645131Y2 JP S645131 Y2 JPS645131 Y2 JP S645131Y2 JP 1984069608 U JP1984069608 U JP 1984069608U JP 6960884 U JP6960884 U JP 6960884U JP S645131 Y2 JPS645131 Y2 JP S645131Y2
- Authority
- JP
- Japan
- Prior art keywords
- ball
- balls
- row
- pair
- 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
Links
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F16C33/38—Ball cages
- F16C33/41—Ball cages comb-shaped
-
- 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
- F16C33/38—Ball cages
- F16C33/40—Ball cages for multiple rows of balls
- F16C33/405—Ball cages for multiple rows of balls with two or more juxtaposed cages joined together or interacting with each other
-
- 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
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/08—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with two or more rows of balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【考案の詳細な説明】 考案の目的 産業上の利用分野 この考案は、複列形玉軸受の保持器に関する。[Detailed explanation of the idea] Purpose of invention Industrial applications This invention relates to a cage for a double row ball bearing.
従来の技術
複列形玉軸受の保持器において、複列のボール
軌道の中央に位置する環体の両側に両端部が開口
したポケツトを配設し、軸受の内外輪の一部に設
けた玉入れ溝より内外輪間および前記ポケツトに
ボールを装入すべくしたものは、米国特許第
3805932号において知られている。Prior Art In a cage for a double-row ball bearing, pockets with both ends open are provided on both sides of an annular body located at the center of the double-row ball raceway, and pockets are provided on both sides of the ring body located at the center of the double-row ball raceway. A device in which a ball is inserted between the inner and outer rings and into the pocket from the insertion groove is disclosed in U.S. Patent No.
Known in No. 3805932.
また、複列のボールを一体的な保持器に形成さ
れた円周上等分配置の横溝形ポケツトに収容すべ
くした複列ころがり軸受の転動体用ケージは、実
開昭56−148121号において公知である。 Furthermore, a cage for rolling elements of a double-row rolling bearing in which double-row balls are accommodated in horizontal groove pockets arranged equally on the circumference formed in an integral cage is disclosed in Utility Model Application No. 148121/1983. It is publicly known.
本考案が解決しようとする問題点
前記従来技術は、いずれも同一体の保持器にボ
ールの収容ポケツトが設けられたものである。し
かるに複列形玉軸受の各列のボールの軌道上の周
速度は各列ごとに相違するため、各列のボールの
間で軌道上の進み遅れを生じ、このため保持器の
ポケツトが進み遅れのボールによつてこじられる
結果破損しやすい欠点がある。Problems to be Solved by the Present Invention In all of the above-mentioned prior art, ball storage pockets are provided in the same cage. However, since the circumferential speed of the balls in each row of a double-row ball bearing on its orbit is different for each row, there is a lag in the orbit between the balls in each row, and as a result, the pockets of the cage advance and lag. It has the disadvantage that it is easily damaged as a result of being pried by the ball.
また、前記従来例の前者の場合は内輪および外
輪にボール入れ用の溝が必須であるので、該溝の
ぬすみ分だけ内外輪の強度を低下させ軸受のラジ
アルならびにスラスト負荷容量を減少する欠点が
ある。 In addition, in the former case of the conventional example, since grooves for inserting the balls are required in the inner and outer rings, there is a drawback that the strength of the inner and outer rings is reduced by the width of the grooves, and the radial and thrust load capacities of the bearing are reduced. be.
考案の構成
問題点を解決するための手段
本考案はかかる従来の問題点に鑑みてなされた
ものであつて、本考案の保持器は、内輪および外
輪にそれぞれ一対のボール軌道が形成されるとと
もに、該両ボール軌道の中心間距離がボールの外
径よりも小さく設定され、前記両ボール軌道のボ
ールがそれぞれ交互にかつ円周等配に保持されて
なる複列形玉軸受用のものであつて、前記各ボー
ル軌道のボール列毎に独立するとともに、軸受内
部に開口したポケツトを有する一対のプラスチツ
ク製保持器であり、該一対の保持器は、前記両ボ
ール軌道のボール列のボールをそれぞれ交互にか
つ円周等配に保持すべく配置され、前記保持器に
設けられた各ポケツトの開口を形成する突起は、
隣接するボール間に介在する形状寸法とされ、該
突起の外表面に、相手方軌道上のボールの周面と
同形の球状凹面が形成されていることを特徴とす
る。Means for Solving the Constituent Problems of the Invention The present invention has been made in view of the problems of the prior art. , for a double row ball bearing in which the distance between the centers of both ball orbits is set smaller than the outer diameter of the balls, and the balls of both ball orbits are held alternately and equidistantly around the circumference; and a pair of plastic cages that are independent for each row of balls on each of the ball tracks and have pockets that are open inside the bearing, and the pair of cages holds the balls of the rows of balls on both ball tracks, respectively. projections arranged alternately and equidistantly around the circumference to form openings of each pocket provided in the retainer;
The protrusion is shaped and dimensioned to be interposed between adjacent balls, and is characterized in that the outer surface of the protrusion is formed with a spherical concave surface that has the same shape as the circumferential surface of the ball on the opposing trajectory.
作 用
一対のボール軌道の中心間距離がボールの外径
よりも小さく設定されるとともに、該両ボール軌
道のボールがそれぞれ交互にかつ円周等配に保持
されてなる複列形玉軸受において、一対の保持器
を、両ボール軌道のボール列のボールをそれぞれ
交互にかつ円周等配に保持すべく配置することに
より、ボールの交互配置により軌道の軸方向の間
隔を可及的に小さくして、複列形玉軸受の形状寸
法のコンパクト化を図る。In a double-row ball bearing in which the center distance of a pair of ball raceways is set to be smaller than the outer diameter of the balls and the balls in both ball raceways are held alternately and at equal circumferential intervals, a pair of cages are arranged to hold the balls in the ball rows of both ball raceways alternately and at equal circumferential intervals, thereby making the axial spacing of the raceways as small as possible by arranging the balls alternately, thereby achieving a compact shape and dimensions of the double-row ball bearing.
各ボール軌道のボール列毎に独立する一対のプ
ラスチツク製保持器とすることにより、軸受回転
時、各保持器を相互に独立して可動とし、保持器
の各ポケツトが進み遅れのボールによつてこじら
れるのを有効に防止して、保持器の破損を防止す
る。 By using a pair of independent plastic cages for each row of balls on each ball track, each cage can be moved independently of the other when the bearing is rotating, and each pocket of the cage can be moved by the balls that are advancing or lagging. Effectively prevents damage to the retainer by preventing it from being pried.
保持器に設けられた各ポケツトの開口を形成す
る突起を、隣接するボール間に介在する形状寸法
とすることにより、隣接するボール同士の接触を
有効に防止する。 Contact between adjacent balls can be effectively prevented by making the projections forming the openings of each pocket provided in the retainer have such a shape that they are interposed between adjacent balls.
上記突起の外表面に、相手方軌道上のボールの
周面と同形の球状凹面を形成して、該ボールとの
接触による突起の摩耗、および上記ボールとの接
触による回転トルクの増大を有効に防止する。 A spherical concave surface having the same shape as the circumferential surface of the ball on the opposing track is formed on the outer surface of the protrusion to effectively prevent wear of the protrusion due to contact with the ball and an increase in rotational torque due to contact with the ball. do.
実施例
図において、１は内輪、２は外輪、３と４とは
各軌道列のボールであつて軌道上に交互に配列さ
れている。一方の列のボール３は、軸受の内部に
向いて開口したポケツト５を有する保持器６に保
持されている。ポケツト５の開口を形成する突起
７の外表面には他方の列のボール４の周面に沿う
形状の球形凹面８に形成されている。ポケツトと
ポケツト間の保持器の実体部はボールの直径に比
べて充分小さい巾で他方の列のボールとの間に空
間９ａを有する桿部９に形成されている。１１は
各保持器の内周および外周に沿うて各ポケツトの
背部間に設けられた剛性補強リブを示している。Embodiment In the figure, 1 is an inner ring, 2 is an outer ring, and 3 and 4 are balls of each track row, which are arranged alternately on the track. The balls 3 in one row are held in a retainer 6 having pockets 5 open toward the inside of the bearing. The outer surface of the protrusion 7 forming the opening of the pocket 5 is formed into a spherical concave surface 8 having a shape along the circumferential surface of the balls 4 in the other row. The substantial portion of the holder between the pockets is formed into a rod portion 9 having a width sufficiently smaller than the diameter of the balls and having a space 9a between the balls in the other row. Reference numeral 11 indicates a rigid reinforcing rib provided between the backs of each pocket along the inner and outer peripheries of each retainer.
他方のボール４の保持器１０は、前記保持器と
対称的な形状に構成されているので、前記と同様
の符号にダツシユを附して示されている。ポケツ
トの内面がボールと摺接する球形凹面に形成され
ていることはいうまでもない。１２は潤滑剤を密
封する密封輪である。 The retainer 10 of the other ball 4 is configured to have a symmetrical shape to the retainer, and therefore is shown with the same reference numerals as above with a dash added. Needless to say, the inner surface of the pocket is formed into a spherical concave surface that makes sliding contact with the ball. 12 is a sealing ring that seals the lubricant.
効 果
以上詳述したように、本考案によれば、以下に
列挙するような種々のすぐれた効果が得られ、軸
方向幅を可及的に小さくすべく構成される複列形
玉軸受、つまり、一対のボール軌道の中心間距離
がボールの外径よりも小さく設定されるととも
に、該両ボール軌道のボールがそれぞれ交互にか
つ軸方向に重なるように配列された複列形玉軸受
に最適な保持器を提供することができ、ひいて
は、形状寸法がコンパクトで、回転トルクが小さ
く、寿命の長い複列形玉軸受を提供することがで
きる。Effects As detailed above, according to the present invention, various excellent effects as listed below can be obtained, and a double row ball bearing configured to reduce the axial width as much as possible, In other words, it is ideal for double-row ball bearings in which the distance between the centers of a pair of ball orbits is set smaller than the outer diameter of the balls, and the balls in both ball orbits are arranged alternately and overlapping each other in the axial direction. Therefore, it is possible to provide a double-row ball bearing that is compact in shape, has low rotational torque, and has a long life.
(1) 一対のボール軌道の中心間距離がボールの外
径よりも小さく設定されるとともに、該両ボー
ル軌道のボールがそれぞれ交互にかつ円周等配
に保持されてなる複列形玉軸受において、一対
の保持器が、両ボール軌道のボール列のボール
をそれぞれ交互にかつ円周等配に保持すべく配
置されているから、ボールの交互配置により軌
道の軸方向の間隔が小となり、複列形玉軸受の
形状寸法をコンパクトに構成することができ
る。(1) In a double-row ball bearing in which the distance between the centers of a pair of ball orbits is set smaller than the outer diameter of the balls, and the balls of both ball orbits are held alternately and equidistantly around the circumference. Since the pair of retainers are arranged to hold the balls of the ball rows of both ball orbits alternately and equally spaced around the circumference, the alternating arrangement of the balls reduces the axial spacing of the orbits, making it possible to The shape and dimensions of the row type ball bearing can be configured compactly.
(2) また、各ボール軌道のボール列毎に独立する
一対のプラスチツク製保持器とされているか
ら、軸受回転時、各保持器は相互に可動であ
る。(2) Furthermore, since there is a pair of independent plastic retainers for each ball row of each ball track, the retainers are movable relative to each other when the bearing rotates.
したがつて、複列形玉軸受においては、各列
のボールの軌道上の周速度は各列ごとに相違す
るため、各列のボールの間で軌道上の進み遅れ
を生じるが、上記のように各保持器が相互に独
立して可動であるため、保持器の各ポケツトが
進み遅れのボールによつてこじられることがな
く、この結果、保持器の破損が有効に防止され
て、寿命が長い。 Therefore, in a double-row ball bearing, the circumferential speed of the balls in each row on the orbit is different for each row, resulting in advancement and lag in the orbit between the balls in each row. Since each cage is movable independently of the other, each pocket of the cage will not be strained by the balls that lead or lag, and as a result, damage to the cage is effectively prevented and the service life is extended. long.
(3) 保持器に設けられた各ポケツトの開口を形成
する突起が、隣接するボール間に介在する形状
寸法とされているから、各ボール列の進み遅れ
の発生により、隣接するボール同士がその周速
度の違いから互いに接近するようなことがあつ
ても、上記突起の存在により、上記両ボール同
士が接触することはない。これにより、ボール
同士のいわゆるスミアリングが完全に防止され
る。(3) Since the protrusions forming the openings of each pocket provided in the retainer are shaped and dimensioned to be interposed between adjacent balls, the occurrence of advance/delay in each row of balls causes adjacent balls to Even if the balls approach each other due to a difference in circumferential speed, the presence of the protrusion prevents the balls from coming into contact with each other. This completely prevents so-called smearing between balls.
(4) 上記突起の外表面に、相手方軌道上のボール
の周面と同形の球状凹面が形成されているか
ら、相手方ボールの周面と角当りすることがな
く、該突起の摩耗が可及的に防止され、この点
でも保持器の寿命が長く、また、上記ボールと
の接触による回転トルクの増大が有効に防止さ
れる。(4) Since the outer surface of the protrusion is formed with a spherical concave surface that has the same shape as the circumferential surface of the ball on the opponent's track, there is no corner contact with the circumferential surface of the opponent's ball, allowing the protrusion to wear out. In this respect as well, the life of the cage is long, and an increase in rotational torque due to contact with the balls is effectively prevented.
(5) 各ボール軌道のボール列毎に独立するととも
に、軸受内部に開口したポケツトが形成されて
いるから、内輪または外輪にボール入れ用の溝
を形成する必要がなく、このため、この溝を形
成することによる内外輪の強度の低下、さらに
は軸受のラジアルならびにスラスト負荷容量の
減少が有効に防止される。(5) Since each ball row of each ball race is independent and has an open pocket inside the bearing, there is no need to form a groove for inserting the balls in the inner or outer ring. This effectively prevents a decrease in the strength of the inner and outer rings, as well as a decrease in the radial and thrust load capacities of the bearing.
第１図は、実施例の保持器を用いた複列形玉軸
受の縦断面図、第２図は第１図の−線におけ
るボールと保持器との配置の一部の断面図であ
る。
３，４……ボール、５，５′……ポケツト、７，
７′……突起、８，８′……球状凹面。
FIG. 1 is a longitudinal cross-sectional view of a double-row ball bearing using a cage according to an embodiment, and FIG. 2 is a partial cross-sectional view of the arrangement of the balls and the cage taken along the line - in FIG. 1. 3, 4...ball, 5,5'...pocket, 7,
7'...protrusion, 8,8'...spherical concave surface.
Claims (1)
形成されるとともに、該両ボール軌道の中心間距
離がボールの外径よりも小さく設定され、前記両
ボール軌道のボールがそれぞれ交互にかつ円周等
配に保持されてなる複列形玉軸受用のものであつ
て、 前記各ボール軌道のボール列毎に独立するとと
もに、軸受内部に開口したポケツトを有する一対
のプラスチツク製保持器であり、 該一対の保持器は、前記両ボール軌道のボール
列のボールをそれぞれ交互にかつ円周等配に保持
すべく配置され、 前記保持器に設けられた各ポケツトの開口を形
成する突起は、隣接するボール間に介在する形状
寸法とされ、 該突起の外表面に、相手方軌道上のボールの周
面と同形の球状凹面が形成されていることを特徴
とする複列形玉軸受の保持器。[Claims for Utility Model Registration] A pair of ball orbits are formed in each of the inner ring and the outer ring, and the distance between the centers of the two ball orbits is set to be smaller than the outer diameter of the balls, and the balls of the two ball orbits are A pair of plastic holders for a double-row ball bearing, which are held alternately and equidistantly around the circumference, and which are independent for each row of balls in each ball raceway and have pockets that open inside the bearing. the pair of holders are arranged to hold the balls of the ball rows of both ball trajectories alternately and equidistantly around the circumference, and the pair of holders form openings of respective pockets provided in the holder. A double row ball bearing characterized in that the protrusion has a shape and size that is interposed between adjacent balls, and the outer surface of the protrusion is formed with a spherical concave surface having the same shape as the circumferential surface of the ball on the opposing track. retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984069608U JPS645131Y2 (en) | 1984-05-11 | 1984-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984069608U JPS645131Y2 (en) | 1984-05-11 | 1984-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61109916U JPS61109916U (en) | 1986-07-11 |
| JPS645131Y2 true JPS645131Y2 (en) | 1989-02-09 |
Family
ID=30605439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984069608U Expired JPS645131Y2 (en) | 1984-05-11 | 1984-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS645131Y2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2501235Y2 (en) * | 1990-11-01 | 1996-06-12 | アルプス電気株式会社 | Ball bearings |
| JP4515039B2 (en) * | 2003-04-07 | 2010-07-28 | ナブテスコ株式会社 | Gear unit using double-row integrated angular bearing |
| JP5927773B2 (en) * | 2010-04-19 | 2016-06-01 | 日本精工株式会社 | Tandem angular contact ball bearings |
| RU2472985C1 (en) * | 2011-07-19 | 2013-01-20 | Андрей Михайлович Чумохвалов | Bearing assembly |
| US10539210B2 (en) * | 2016-10-13 | 2020-01-21 | Superturbo Technologies, Inc. | Angular contact ball ramps for driven turbocharger |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834231A (en) * | 1981-08-22 | 1983-02-28 | Ntn Toyo Bearing Co Ltd | Double row ball bearing |
-
1984
- 1984-05-11 JP JP1984069608U patent/JPS645131Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834231A (en) * | 1981-08-22 | 1983-02-28 | Ntn Toyo Bearing Co Ltd | Double row ball bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61109916U (en) | 1986-07-11 |
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