JPH089451Y2 - Ball bearings for high speed rotation with resin retainer - Google Patents
Ball bearings for high speed rotation with resin retainerInfo
- Publication number
- JPH089451Y2 JPH089451Y2 JP1989153128U JP15312889U JPH089451Y2 JP H089451 Y2 JPH089451 Y2 JP H089451Y2 JP 1989153128 U JP1989153128 U JP 1989153128U JP 15312889 U JP15312889 U JP 15312889U JP H089451 Y2 JPH089451 Y2 JP H089451Y2
- Authority
- JP
- Japan
- Prior art keywords
- retainer
- annular portion
- ball bearing
- claw
- speed rotation
- 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 - Lifetime
Links
- 229920005989 resin Polymers 0.000 title claims description 9
- 239000011347 resin Substances 0.000 title claims description 9
- 210000000078 claw Anatomy 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 229920003002 synthetic resin Polymers 0.000 claims description 11
- 239000000057 synthetic resin Substances 0.000 claims description 11
- 239000004519 grease Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 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
- F16C33/412—Massive or moulded comb cages, e.g. snap ball cages
- F16C33/414—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages
- F16C33/416—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages made from plastic, e.g. injection moulded 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
- F16C33/38—Ball cages
- F16C33/41—Ball cages comb-shaped
- F16C33/418—Details of individual pockets, e.g. shape or ball retaining means
-
- 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
- F16C19/06—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 a single row or balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は樹脂製リテナー付き高速回転用玉軸受に関す
るものであり、詳細には、高速回転する電気掃除機のモ
ータ等に使用されている玉軸受における樹脂製リテナー
の改良に関するものである。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a ball bearing for high-speed rotation with a resin retainer, and more specifically, a ball used in a motor of a vacuum cleaner that rotates at high speed. The present invention relates to an improvement of a resin retainer in a bearing.
高速回転するモータ、例えば35000rpm以上の回転数を
有する電気掃除機用のモータには、軽量の樹脂製リテナ
ーを具えた玉軸受が組込まれている。より詳細に説明す
ると、従来の電気掃除機用モータでは、主軸軸受用のリ
テナーとして鉄製のものが使用されていたが、高速化の
要求に答えるためには潤滑寿命が問題となる。そこで、
鉄製のリテナーの代わりに軽量の合成樹脂、例えば66ナ
イロン製のスナップオン型リテナーが使用されるように
なった。第４図は合成樹脂製のリテナーを具えた玉軸受
の従来例を示す縦断面図である。同図において（１）は
玉軸受、（２）は外輪、（３）は内輪、（４）は鋼球、
（５）は複数個の鋼球、（４）（４）…を外輪（２）と
内輪（３）との間に整列状態で、かつ回転自在に保持す
る合成樹脂、例えば66ナイロン製のリテナー、（６）は
玉軸受（１）の端面部を遮蔽するように取付けられたシ
ールド板を示す。リテナー（５）は、第５図に拡大図示
するように複数個の鋼球（４）（４）…を所定の間隔保
持下に回転自在に抱持する爪部（5A）と、この爪部（5
A）の複数個を円周方向に沿って一定の間隔保持下に接
合する環状の部（5B）とによって構成されている。外輪
（２）と内輪（３）の間に、前記リテナー（５）を介し
て複数個の鋼球（４）（４）…を嵌装支持すると共に、
外輪（２）と内輪（３）との間に鋼球（４）（４）…お
よびリテナー（５）の非装填領域として残存している空
隙部分（静止空間）に、グリースを適量封入することに
よって、電気掃除機モータの主軸用玉軸受（１）が形成
されている。A ball bearing having a lightweight resin retainer is incorporated in a motor that rotates at high speed, for example, a motor for a vacuum cleaner having a rotation speed of 35,000 rpm or more. More specifically, in the conventional vacuum cleaner motor, a retainer made of iron is used as the retainer for the main shaft bearing, but the lubrication life becomes a problem in order to meet the demand for higher speed. Therefore,
Instead of iron retainers, lightweight synthetic resins, such as 66 nylon snap-on retainers, have been used. FIG. 4 is a vertical cross-sectional view showing a conventional example of a ball bearing having a retainer made of synthetic resin. In the figure, (1) is a ball bearing, (2) is an outer ring, (3) is an inner ring, (4) is a steel ball,
(5) is a plurality of steel balls, (4) (4) ... Retainer made of synthetic resin, such as 66 nylon, which holds the outer ring (2) and the inner ring (3) in an aligned state and rotatably. , (6) are shield plates attached so as to shield the end surface portion of the ball bearing (1). As shown in the enlarged view of FIG. 5, the retainer (5) is provided with a claw portion (5A) for rotatably embracing a plurality of steel balls (4), (4), ... (Five
And a ring-shaped part (5B) that joins a plurality of (A) along the circumferential direction at a fixed interval. Between the outer ring (2) and the inner ring (3), a plurality of steel balls (4) (4) ... Are fitted and supported via the retainer (5),
An appropriate amount of grease should be filled in the voids (still space) remaining between the outer ring (2) and the inner ring (3) as the steel balls (4) (4) ... and the retainer (5) unloaded region. The ball bearing (1) for the main shaft of the vacuum cleaner motor is formed by.
前記玉軸受（１）が高速回転時に焼付きを起こさない
ためには、リテナー（５）が軽量であること、およびグ
リースの攪拌抵抗による回転トルクの増大が少ないこと
が要求される。In order to prevent seizure of the ball bearing (1) during high-speed rotation, it is required that the retainer (5) be lightweight and that the rotation torque due to the stirring resistance of grease be small.
この要請に答えるため、従来の玉軸受（１）において
は、リテナー（５）を鉄製のものから合成樹脂製のもの
に代えたり、軸受の静止空間容積を出来る限り大きくす
るようにリテナー（５）を含む玉軸受（１）の寸法諸元
を選定していた。In order to meet this demand, in the conventional ball bearing (1), the retainer (5) is replaced with a retainer (5) made of iron, or the retainer (5) is designed to maximize the static space volume of the bearing. The dimensional specifications of the ball bearing (1) including
リテナー（５）の重量を減少させるためには、リテナ
ー（５）を合成樹脂材料から成形すると共にその全体を
薄肉化することが有効であるが、これ迄は第４図および
第５図に例示するように玉軸受（１）のピッチ円径（P.
C.D）の外側と内側で爪部（5A）および環状部（5B）の
厚みH1を等しく、かつ、リテナー（５）の全体厚み2H1
を出来る限り薄くする方式が採用されていた。しかしな
がら、リテナー（５）の全体厚み2H1を極端に薄くする
と剛性が低下し、第６図に白抜きの矢印で表示するよう
に高速回転時に爪部（5A）が接合部である環状部（5B）
を回転中心にしてラッパ状に開き、爪部（5A）は二点鎖
線で示す鋼球保持姿勢を採る。この結果、爪部（5A）の
内輪（３）寄りの部分が鋼球（４）に当たり、鋼球
（４）（４）…の円滑な回転が阻害され、また、グリー
スの攪拌抵抗の増大により回転トルクの増大や油膜の破
断等の問題が発生する。In order to reduce the weight of the retainer (5), it is effective to mold the retainer (5) from a synthetic resin material and to reduce the thickness of the entire retainer (5). Adjust the ball bearing (1) pitch circle diameter (P.
The thickness H 1 of the claw portion (5A) and the annular portion (5B) are equal on the outer side and the inner side of the CD), and the total thickness of the retainer (5) is 2H 1
The method of making the thickness as thin as possible was adopted. However, if the overall thickness 2H 1 of the retainer (5) is extremely thinned, the rigidity will decrease, and as indicated by the white arrow in FIG. 6, the claw part (5A) is the joint part at the time of high speed rotation ( 5B)
With the center of rotation as the center of rotation, it opens like a trumpet, and the claw (5A) takes the steel ball holding posture shown by the chain double-dashed line. As a result, the portion of the claw portion (5A) close to the inner ring (3) hits the steel ball (4), hinders smooth rotation of the steel balls (4), (4), and increases the stirring resistance of the grease. Problems such as an increase in rotational torque and breakage of the oil film occur.
そこで、本考案は、高速回転に耐え得る樹脂製リテナ
ー付き玉軸受を提供することを目的とする。そしてその
ためには、リテナーの剛性を低下させることなく軽量化
を図ることが課題となる。Therefore, an object of the present invention is to provide a ball bearing with a resin retainer that can withstand high speed rotation. For that purpose, it becomes an issue to reduce the weight of the retainer without lowering its rigidity.
上記課題の解決手段として本考案は、ピッチ円径の内
・外両側に均等な肉厚及び長さを有する環状部と、該環
状部の一側面に該環状部と同じ半径方向幅で円周方向等
間隔に一体的に結合された複数の爪部とを有し、該爪部
相互間であって内輪と外輪の間に所定個数の鋼球を整列
状態で、かつ回転自在に保持する合成樹脂製のリテナー
を嵌装してなる高速回転用玉軸受において、前記外輪の
レース面と対向するリテナーの爪部を、ピッチ円径の外
側でその全幅に亘って所定の厚み寸法だけ切除して前記
環状部よりもピッチ円径の外側で薄い軽量の爪部を構成
したことを特徴とする樹脂製リテナー付き高速回転用玉
軸受を提供するものである。As a means for solving the above-mentioned problems, the present invention provides an annular portion having uniform thickness and length on both inner and outer sides of a pitch circle diameter, and a circular surface having the same radial width as the annular portion on one side surface of the annular portion. A composite having a plurality of claw portions integrally coupled at equal intervals in the direction, and rotatably holding a predetermined number of steel balls between the claw portions and between the inner ring and the outer ring In a high-speed rotation ball bearing fitted with a resin retainer, the retainer claw portion facing the race surface of the outer ring is cut off by a predetermined thickness dimension outside the pitch diameter over its entire width. A ball bearing for high speed rotation with a resin retainer, characterized in that a thin and lightweight claw portion is formed outside the pitch circle diameter than the annular portion.
外輪のレース面と対向する合成樹脂製リテナーの爪部
をピッチ円径の外側でその全幅に亘って所定の厚み寸法
だけ切除することによって、リテナー、特に爪部の軽量
化を図ると共に、ピッチ円径の外側部分が切除された爪
部の基部を、径方向寸法に何ら変更を加えることなく存
置された環状部と一体に結合することによって、爪部の
捻れを減少させ、遠心力に対するリテナーの剛性を高め
る。また、環状部の外径側端部は玉軸受の静止空間内に
封入されたグリースに対して漏出し防止機能を発揮し、
潤滑性能の持続と玉軸受の長寿命化に寄与する。By cutting the claw part of the synthetic resin retainer facing the race surface of the outer ring by a predetermined thickness dimension outside the pitch circle diameter over the entire width, it is possible to reduce the weight of the retainer, especially the claw part, and to reduce the pitch circle. By joining the base of the claw part with the outer part of the diameter cut off with the annular part that remains without any change in the radial dimension, the twist of the claw part is reduced, and the retainer against centrifugal force is reduced. Increase rigidity. In addition, the outer diameter side end of the annular portion exhibits a leakage prevention function for the grease filled in the static space of the ball bearing,
It contributes to the continuous lubrication performance and the long life of ball bearings.
第１図は本考案の玉軸受に使用されている合成樹脂製
リテナーの縦断面図、第２図は上記合成樹脂製リテナー
を展開状態で示す一部破断平面図、第３図はその部分縦
断面図である。FIG. 1 is a vertical sectional view of a synthetic resin retainer used in the ball bearing of the present invention, FIG. 2 is a partially cutaway plan view showing the synthetic resin retainer in a developed state, and FIG. It is a side view.
尚、以下の記述において、従来技術の説明に使用した
第４図乃至第６図と同一の構成部材は同一の参照番号で
表示し、重複する事項に関しては説明を省略する。In the following description, the same components as those shown in FIGS. 4 to 6 used in the description of the prior art will be denoted by the same reference numerals, and duplicated descriptions will be omitted.
第１図乃至第３図に示すように本考案においてはリテ
ナー（５）を射出成形等の成形手段を利用して66ナイロ
ン等の合成樹脂材料から形成するが、同一の切除厚み寸
法H2でより大きな質量減少効果を得るため、薄肉化に際
しては外輪（２）のレース面と対向するリテナー（５）
の爪部（5A）の厚み寸法2H1を第１図及び第３図で二点
鎖線で示すようにピッチ円径（P.C.D）の外側でその全
幅W2に亘って厚み寸法H2だけ切除する。即ち、リテナー
（５）の薄肉化に際し、爪部（5A）の厚み寸法がピッチ
円径（P.C.D）の内側でH1となり、また、ピッチ円径
（P.C.D）の外側でH1−H2となるようにピッチ円径（P.
C.D）の外側部分のみを爪部（5A）の全幅W2に亘って切
除することによって、剛性の低下が少ない軽量の爪部
（5A）を構成する。そして、ピッチ円径（P.C.D）の外
側部分を切除した爪部（5A）の基部は、径方向寸法に何
ら変更を加えることなく存置された環状部（5B）と結合
している。これによってリテナー（５）は、爪部（5A）
の厚みがピッチ円径（P.C.D）の外側部分で減少してい
るにも拘わらずリテナー（５）全体として剛性を所定の
水準に維持せしめた鋼球（４）（４）…の整列保持器に
形成される。As shown in FIGS. 1 to 3, in the present invention, the retainer (5) is made of synthetic resin material such as 66 nylon by using molding means such as injection molding, but with the same cutting thickness dimension H 2 . Retainer (5) facing the race surface of the outer ring (2) when thinning, in order to obtain a greater mass reduction effect.
The thickness dimension 2H 1 of the claw portion (5A) is cut off by the thickness dimension H 2 over the entire width W 2 outside the pitch circle diameter (PCD) as shown by the chain double-dashed line in FIGS. 1 and 3. . That is, when reducing the thickness of the retainer (5), the thickness of the claw (5A) becomes H 1 inside the pitch circle diameter (PCD) and H 1 -H 2 outside the pitch circle diameter (PCD). Pitch pitch diameter (P.
By cutting only the outer side portion of the CD over the entire width W 2 of the claw portion (5A), a lightweight claw portion (5A) with little reduction in rigidity is configured. Then, the base portion of the claw portion (5A), which is obtained by cutting out the outer portion of the pitch circle diameter (PCD), is connected to the existing annular portion (5B) without any change in the radial dimension. As a result, the retainer (5) has a claw (5A).
Alignment cage of steel balls (4), (4), etc., which maintains the rigidity of the retainer (5) as a whole even though the thickness of the retainer is reduced on the outside of the pitch circle diameter (PCD). It is formed.
上記環状部（5B）は、2H1なる厚み寸法と、W1−W2な
る幅寸法を具えた剛性補強部位であり、リテナー（５）
の主要部である爪部（5A）の薄肉化を可能にすると共
に、外輪（２）のレース面と対向する環状部（5B）の外
径側端部（６）を、玉軸受（１）の静止空間内に封入さ
れたグリースの漏出し防止部位として機能させている。
即ち、第３図に二点鎖線を付した切除域として示すよう
に、環状部（5B）の円周方向に沿う角隅部分にチャンフ
ァ（７）を設けることによって環状部（5B）自体の軽量
化を図ると共に、角部外径側の切除によってフランジ状
に突出した外径側端部（６）を堰として機能させること
によって玉軸受（１）内からのグリースの流出を防止
し、同時に高速回転時のグリースに許容限度を越えた攪
拌抵抗が発生することを抑制している。The annular portion (5B) is a rigid reinforcing portion having a thickness dimension of 2H 1 and a width dimension of W 1 -W 2 , and the retainer (5)
The outer diameter side end (6) of the annular portion (5B) facing the race surface of the outer ring (2) can be made thin, and the claw portion (5A) that is the main part of the ball bearing (1) can be made thin. It functions as a leakage prevention part for the grease enclosed in the stationary space.
That is, as shown in FIG. 3 as a cutout area with a chain double-dashed line, the chamfers (7) are provided at the corners along the circumferential direction of the annular portion (5B) to reduce the weight of the annular portion (5B) itself. In addition to preventing the grease from flowing out from the inside of the ball bearing (1) by making the outer diameter side end (6) protruding like a flange function as a weir by cutting off the corner outer diameter side, at the same time high speed It suppresses the occurrence of stirring resistance that exceeds the allowable limit in the rotating grease.
リテナーの爪部の重量を軽減することによって、遠心
力による爪部の外輪側へのラッパ状広がりが少なくな
る。特に、リテナー爪部の外径側だけを切除し、環状部
にはチャンファを設けるに止めたので、剛性の低下を可
及的に少なく抑えることができる。従って、玉軸受を高
速回転する主軸、例えば35000rpm以上で回転する電気掃
除機用モータの主軸の支持装置として使用した場合に
も、リテナーの爪部の広がりによる鋼球と爪部との接触
やこれに起因する油膜切れが発生しない。また、チャン
ファ付きの環状部が薄肉化された爪部と一体に連結して
いることによって、リテナー全体としての剛性が所望の
水準に維持されることに加えて、環状部の外径側端部が
堰の働きをして玉軸受内からのグリースの漏出しも効果
的に回避される。この結果、潤滑性能の持続と玉軸受の
長寿命化が達成される。By reducing the weight of the retainer claws, the trumpet-like spread of the claws toward the outer ring due to centrifugal force is reduced. In particular, since only the outer diameter side of the retainer claw portion is cut off and the chamfer is provided only in the annular portion, the decrease in rigidity can be suppressed as small as possible. Therefore, even when the ball bearing is used as a supporting device for a main shaft that rotates at a high speed, for example, a main shaft of a motor for an electric vacuum cleaner that rotates at 35000 rpm or more, contact or contact between the steel ball and the claw part due to the spread of the claw part of the retainer. The oil film will not run out due to. Further, since the annular portion with the chamfer is integrally connected to the thinned claw portion, the rigidity of the retainer as a whole can be maintained at a desired level, and the outer diameter side end portion of the annular portion can be maintained. Acts as a weir to effectively prevent the leakage of grease from the ball bearing. As a result, continuous lubrication performance and longer life of the ball bearing are achieved.
第１図は本考案の玉軸受に使用されている合成樹脂製リ
テナーの縦断面図、第２図は上記合成樹脂製リテナーを
展開状態で示す一部破断平面図、第３図はその部分縦断
面図である。第４図は剛性樹脂製のリテナーを具えた玉
軸受の従来例を示す縦断面図、第５図はリテナーの拡大
縦断面図、第６図はラッパ状に拡開したリテナーの縦断
面図である。 （１）……玉軸受、（２）……外輪、（３）……内輪、
（４）……鋼球、（５）……リテナー、（5A）……爪
部、（5B）……環状部、（６）……環状部の外径側端
部、（７）……チャンファ。FIG. 1 is a vertical sectional view of a synthetic resin retainer used in the ball bearing of the present invention, FIG. 2 is a partially cutaway plan view showing the synthetic resin retainer in a developed state, and FIG. It is a side view. FIG. 4 is a vertical cross-sectional view showing a conventional example of a ball bearing equipped with a rigid resin retainer, FIG. 5 is an enlarged vertical cross-sectional view of the retainer, and FIG. 6 is a vertical cross-sectional view of the retainer expanded like a trumpet. is there. (1) …… Ball bearing, (2) …… Outer ring, (3) …… Inner ring,
(4) …… Steel ball, (5) …… Retainer, (5A) …… Claw part, (5B) …… Annular part, (6) …… Outer diameter side end part of the annular part, (7) …… Chamfa.
Claims (1)
長さを有する環状部と、該環状部の一側面に該環状部と
同じ半径方向幅で円周方向等間隔に一体的に結合された
複数の爪部とを有し、該爪部相互間であって内輪と外輪
の間に所定個数の鋼球を整列状態で、かつ回転自在に保
持する合成樹脂製のリテナーを嵌装してなる高速回転用
玉軸受において、 前記外輪のレース面と対向するリテナーの爪部を、ピッ
チ円径の外側でその全幅に亘って所定の厚み寸法だけ切
除して前記環状部よりもピッチ円径の外側で薄い軽量の
爪部を構成したことを特徴とする樹脂製リテナー付き高
速回転用玉軸受。1. An annular portion having uniform thickness and length on both inner and outer sides of a pitch circle diameter, and one side surface of the annular portion integrally formed with the same radial width as the annular portion at equal circumferential intervals. A retainer made of synthetic resin for holding a predetermined number of steel balls in an aligned state between the claw portions and between the inner ring and the outer ring so as to be rotatable. In a ball bearing for high-speed rotation that is fitted, the claw portion of the retainer that faces the race surface of the outer ring is cut out by a predetermined thickness dimension over the entire width outside the pitch circle diameter, and is more than the annular portion. A ball bearing for high-speed rotation with a resin retainer, characterized in that a thin and lightweight claw part is configured outside the pitch circle diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989153128U JPH089451Y2 (en) | 1989-12-27 | 1989-12-27 | Ball bearings for high speed rotation with resin retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989153128U JPH089451Y2 (en) | 1989-12-27 | 1989-12-27 | Ball bearings for high speed rotation with resin retainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0389218U JPH0389218U (en) | 1991-09-11 |
| JPH089451Y2 true JPH089451Y2 (en) | 1996-03-21 |
Family
ID=31699353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989153128U Expired - Lifetime JPH089451Y2 (en) | 1989-12-27 | 1989-12-27 | Ball bearings for high speed rotation with resin retainer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089451Y2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59139481U (en) * | 1983-03-08 | 1984-09-18 | 本田技研工業株式会社 | Bearings for motorcycle head pipes |
| JPS6114748U (en) * | 1984-07-03 | 1986-01-28 | 日本メタルガスケツト株式会社 | metal gasket |
| JPH0748702B2 (en) * | 1986-07-11 | 1995-05-24 | クラリオン株式会社 | M-sequence code generator |
| JPS6318834U (en) * | 1986-07-23 | 1988-02-08 | ||
| JPS645131U (en) * | 1987-06-30 | 1989-01-12 |
-
1989
- 1989-12-27 JP JP1989153128U patent/JPH089451Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0389218U (en) | 1991-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |