JPH07197937A - Manufacture of deep groove ball bearing without holder - Google Patents
Manufacture of deep groove ball bearing without holderInfo
- Publication number
- JPH07197937A JPH07197937A JP34991793A JP34991793A JPH07197937A JP H07197937 A JPH07197937 A JP H07197937A JP 34991793 A JP34991793 A JP 34991793A JP 34991793 A JP34991793 A JP 34991793A JP H07197937 A JPH07197937 A JP H07197937A
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- ball bearing
- balls
- holder
- deep groove
- 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
Landscapes
- Automatic Assembly (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はバイブレータ等の振動工
具に使用されることが最適である保持器のない深みぞ玉
軸受の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a cage-free deep groove ball bearing which is most suitable for use in a vibrating tool such as a vibrator.
【０００２】[0002]
【従来の技術】従来、深みぞ玉軸受がバイブレータ等の
振動工具に使用されている。エアー式の場合、当該振動
工具の原理として、高速回転するタービン円板の重心を
故意に偏らせることによって、高速回転中のタービン円
板から振動を発生させているものが知られる。この種の
振動工具においては、タービン円板の中心軸を深みぞ玉
軸受で軸承することが知られている。掌で握って使用す
る小型バイブレータ（磨き作業用等）には比較的軽量小
型でオーソドックスな深みぞ玉軸受が多用されている。2. Description of the Related Art Conventionally, deep groove ball bearings have been used for vibrating tools such as vibrators. In the case of the pneumatic type, as a principle of the vibrating tool, it is known that the center of gravity of a turbine disk rotating at high speed is intentionally biased to generate vibration from the turbine disk rotating at high speed. In this type of vibration tool, it is known that the central axis of the turbine disk is supported by a deep groove ball bearing. A relatively light and compact deep groove ball bearing is often used for a small vibrator (for polishing work, etc.) that is held by the palm.
【０００３】[0003]
【発明が解決しようとする課題】しかし、転がり軸受
は、内輪を軸に、又、外輪をハウジングに固定して使用
される回転動作の要であって、はめあい部の加減すらに
も気配りされている。デリケートな原因（しめしろの加
減）と結果（磨耗、振動、異常発熱）が存在するからで
ある。このように磨耗や振動、異常発熱等が生起しない
ように使われるべきものである転がり軸受が、振動工具
のタービン円板の軸承として使用されている。その結果
として、保持器が破壊して軸受として用をなしえない事
態が頻発している。保持器とは、深みぞ玉軸受等に使用
されているものであって、その役割は転動体である玉を
一定間隔に配置させて外輪と内輪を同芯に保つためのも
のである。However, the rolling bearing is a pivotal part of the rotating operation in which the inner ring is fixed to the shaft and the outer ring is fixed to the housing, and even if the fitting portion is adjusted, the rolling bearing is carefully considered. There is. This is because there are delicate causes (adjustment of interference) and results (wear, vibration, abnormal heat generation). A rolling bearing, which should be used so as not to cause wear, vibration, abnormal heat generation, etc., is used as a bearing for a turbine disk of a vibration tool. As a result, the cage frequently breaks and cannot be used as a bearing. The cage is used in deep groove ball bearings and the like, and its role is to keep balls, which are rolling elements, at regular intervals to keep the outer ring and the inner ring concentric.
【０００４】外輪と内輪との間に入れることのできる玉
数は自ずと限定されている。外輪と内輪を偏芯させて挿
入できる玉数は、半円弧の範囲に並べられる玉数が目安
（通常７個から８個）である。よって、保持器がなけれ
ば外輪と内輪を同芯にすることができず軸受として使用
できない。The number of balls that can be inserted between the outer ring and the inner ring is naturally limited. As for the number of balls that can be inserted with the outer ring and the inner ring eccentric, the number of balls arranged in the range of a semi-circle is a standard (usually 7 to 8). Therefore, without a cage, the outer ring and the inner ring cannot be concentric and cannot be used as a bearing.
【０００５】振動工具の軸承として深みぞ玉軸受が使用
されるとき、保持器が頻繁に破断して軸受が用をなさな
くなる。保持器は特有の凹凸を形成しており、高速の振
動を受けると玉との接触圧が高まって磨耗を早め、又は
繰り返し応力が凹凸の局部に集中し、而して材が疲れ破
断に至るからである。本発明は、このようなトラブルの
元凶ともいえる保持器を最初から取り去った深みぞ玉軸
受を振動工具用として実現し、修理を頻繁に行っている
現状を打破しようとするものである。When a deep groove ball bearing is used as a bearing for a vibrating tool, the cage is frequently broken and the bearing becomes useless. The cage has a unique unevenness, and when it is subjected to high-speed vibration, the contact pressure with the ball increases and wear is accelerated, or repeated stress is concentrated on the uneven part, leading to fatigue fracture of the material. Because. The present invention is intended to realize a deep groove ball bearing for a vibrating tool from which a retainer, which can be said to be the cause of such troubles, is removed from the beginning, and to break down the current state of frequent repairs.
【０００６】[0006]
【課題を解決するための手段】保持器をなくして玉のみ
で外輪と内輪を同芯に保つことができるほどの玉数をい
かにして外輪と内輪との間に入れるかが課題となるが、
この課題を解決するために、本発明は、外輪と内輪との
間に玉を挿入する場合において、外輪に外輪の半径方向
に溝底を向けた溝で背割りを入れ、当該背割りの部分に
僅かの外力で応力を集中させて破断させ、当該外輪を弾
性限度以内に押し広げて外輪と内輪との間に保持器の必
要がないほどの玉数を挿入することを特徴とする保持器
のない深みぞ玉軸受の製造方法を提供しようとするもの
である。[Means for Solving the Problems] How to insert the number of balls between the outer ring and the inner ring so that the outer ring and the inner ring can be concentric with only the balls without the cage is a problem. ,
In order to solve this problem, the present invention, when inserting a ball between the outer ring and the inner ring, inserts a spine split in the outer ring in a groove whose groove bottom is directed in the radial direction of the outer ring, and the spine split portion is slightly There is no cage characterized in that stress is concentrated and broken by the external force of the above, the outer ring is spread within the elastic limit, and a sufficient number of balls are inserted between the outer ring and the inner ring to eliminate the need for a cage. It is intended to provide a method for manufacturing a deep groove ball bearing.
【０００７】背割りというのは、本来丸太又は芯持ち角
材を使用するとき、それらの材うち室内側に現れる見付
け面に亀裂が入るのを防ぐために、背の部分にのこぎり
で切れ目を入れることの技術用語である。背割りが亀裂
の発生を誘発させる意味においては、本発明の作用と同
義となり得るのでこの用語を使用することとした。外輪
の半径方向とは、外輪をドーナツ形状として見るとき、
外周のある点からドーナツ形状の中心に向かう線の方向
を半径方向と定義する。弾性限度とは一時的に変形させ
ても元通りになる上限の応力度のことである。背割りの
部分から破断させることの意義は、僅かの外力で容易に
分離さすため、又、外輪の内面に滑らかに連続して形成
している転動面の欠落を防ぐためである。転動面の欠落
が起こると円滑な回転が維持できなくなるからである。
背割りの部分から破断させることで、その破断線はヘア
・クラックとなって転動面の欠落が起こらず、くさび作
用による外力が消失すれば寸法的に元通りになる。[0007] Back splitting is a technique in which, when logs or cored square timbers are originally used, in order to prevent cracks from being formed in the found surface of those timbers that appear on the indoor side, a saw is cut in the spine. Is a term. The term "splitting" can be synonymous with the action of the present invention in the sense that it induces the generation of cracks, so this term was used. The radial direction of the outer ring means that when the outer ring is viewed as a donut shape,
The direction of a line from a point on the outer circumference to the center of the donut shape is defined as the radial direction. The elastic limit is the upper limit of stress that can be restored even after being temporarily deformed. The purpose of breaking from the split portion is to easily separate it with a small external force, and to prevent the rolling surface that is smoothly and continuously formed on the inner surface of the outer ring from being lost. This is because smooth rotation cannot be maintained if the rolling surface is missing.
By breaking from the split part of the back, the breaking line becomes a hair crack and the lack of rolling surface does not occur, and if the external force due to the wedge action disappears, it will be dimensionally restored.
【０００８】[0008]
【実施例】本発明の一実施例を図面に基づいて説明する
と、図１は平面図であり、外輪（１）をドーナツ形状に
みた図である。焼入、研磨仕上げ後の外輪（１）に当該
外輪（１）の半径方向に溝底を向けた溝（２）を入れ
る。溝であるからこの切り込みは外輪（１）の厚みの途
中までに止める。溝（２）を入れる方法は、切断用砥石
又は放電等で可能である。その後、くさび等で外力を加
え背割り部分であるところの溝（２）に応力を集中させ
そのまま破断させる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing an outer ring (1) in a donut shape. A groove (2) having a groove bottom in the radial direction of the outer ring (1) is put into the outer ring (1) after quenching and polishing. Since it is a groove, this cut is stopped halfway through the thickness of the outer ring (1). The groove (2) can be formed by using a cutting grindstone or electric discharge. Thereafter, an external force is applied by a wedge or the like to concentrate the stress in the groove (2) which is the split portion of the spine, and the groove is broken as it is.
【０００９】外輪（１）と内輪（３）の中に玉（４）を
入れる時、段落０００３で説明したように、半円弧の範
囲に並べられる程の玉数（通常７個から８個）だけは、
通例に従って入れることになるが、本発明においては、
玉（４）だけで外輪（１）と内輪（３）を同芯に保つ必
要上、更に多くの玉（４）を外輪（１）と内輪（３）と
の間に入れなければならない。そこで、外輪（１）に発
生させた破断面（５）を外力を加えて瞬間開きその隙に
玉（４）を挿入するものである。尚、外力とは、例え
ば、玉の圧入時に外輪を広げる力をいう。又、玉の挿入
は破断箇所を避け、幾分離れた位置において挿入作業を
し組み付けを完了させる。破断箇所において玉（４）の
挿入を行うと、ヘア・クラックを形成しているデリケー
トな継ぎ目を損傷させて、滑らかな転動面の連続形成を
阻害することになるからである。When the balls (4) are inserted into the outer ring (1) and the inner ring (3), as explained in paragraph 0003, the number of balls can be arranged in the range of a semicircle (usually 7 to 8). Only
Although it will be inserted according to the usual practice, in the present invention,
Since it is necessary to keep the outer ring (1) and the inner ring (3) concentric with only the balls (4), more balls (4) must be inserted between the outer ring (1) and the inner ring (3). Therefore, the fracture surface (5) generated in the outer ring (1) is momentarily opened by applying an external force, and the ball (4) is inserted into the gap. The external force is, for example, a force that expands the outer ring when the balls are press-fitted. Also, when inserting the balls, avoid the breakage point and insert the balls at some separated positions to complete the assembly. This is because if the balls (4) are inserted at the break points, the delicate seams forming the hair cracks are damaged and the continuous formation of smooth rolling surfaces is hindered.
【００１０】本発明によって、通常入れることのできる
玉数より余分に入れることができる。余分に入れること
が可能となったために、保持器なくして玉（４）のみで
外輪（１）と内輪（３）を同芯に保持することができよ
うになった。保持器がないため玉（４）がある程度偏る
ので精度上の難点もあるが、本発明の目的は、振動工具
に使用される軸受に関してであり、又、その軸受の寿命
を延ばすことが目的であって、精度の高い動作を追求す
る観点を極度に必要としない。従って、玉と玉が多少擦
れあって磨耗の原因になったとしても、保持器の破断に
よる軸受自体の交換回数と比べれば比較にならない問題
と考える。又、破断箇所は背割りの溝で容易に判断し得
るので取付時に負荷のない側に圧入すればなんら支障も
ない。According to the present invention, it is possible to add more balls than can be normally inserted. Since it is possible to put in an extra, it is possible to hold the outer ring (1) and the inner ring (3) concentrically without the cage and only by the balls (4). Since the balls (4) are biased to some extent because there is no cage, there is a problem in accuracy, but the object of the present invention is to relate to a bearing used for a vibrating tool, and to extend the life of the bearing. Therefore, the viewpoint of pursuing highly accurate operation is not extremely necessary. Therefore, even if the balls rub against each other to some extent and cause wear, it is considered to be a problem that cannot be compared with the number of times of replacement of the bearing itself due to breakage of the cage. Further, since the broken portion can be easily determined by the groove for splitting the back, there is no problem if it is press-fitted to the side without load at the time of mounting.
【００１１】[0011]
【発明の効果】これにより、振動工具用に保持器のない
深みぞ玉軸受を提供できる。保持器のみの損壊で軸受全
体を交換修理しなければならなかった無駄を解消でき
る。本発明によって保持器の損壊が原因の故障がなくな
り安心して振動工具が使えるようになるという効果を奏
する。As a result, a cage-free deep groove ball bearing can be provided for a vibrating tool. It is possible to eliminate the waste of having to replace and repair the entire bearing by damaging only the cage. Advantageous Effects of Invention The present invention has an effect that a vibrating tool can be used without anxiety because a failure caused by damage to a cage is eliminated.
【図１】外輪の平面図である。FIG. 1 is a plan view of an outer ring.
【図２】外輪のＡ−Ａ線断面図である。FIG. 2 is a sectional view of the outer ring taken along the line AA.
【図３】本発明によってできる玉軸受の平面図である。FIG. 3 is a plan view of a ball bearing made according to the present invention.
【図４】本発明によってできる玉軸受の断面図である。FIG. 4 is a sectional view of a ball bearing made according to the present invention.
１ 外輪 ２ 溝 ３ 内輪 ４ 玉 ５ 破断面 1 outer ring 2 groove 3 inner ring 4 ball 5 fracture surface
Claims (1)
おいて、外輪に外輪の半径方向に溝底を向けた溝で背割
りを入れ、当該背割りの部分に僅かの外力で応力を集中
させて破断させ、当該外輪を押し広げて外輪と内輪との
間に保持器の必要がないほどの玉数を挿入することを特
徴とする保持器のない深みぞ玉軸受の製造方法。1. When inserting a ball between the outer ring and the inner ring, the outer ring is split with a groove whose groove bottom is directed in the radial direction of the outer ring, and stress is concentrated on the portion of the back split with a slight external force. A method for manufacturing a deep groove ball bearing without a cage, characterized in that the outer ring is crushed, and the outer ring is pushed open to insert a sufficient number of balls between the outer ring and the inner ring to eliminate the need for a cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34991793A JPH07197937A (en) | 1993-12-29 | 1993-12-29 | Manufacture of deep groove ball bearing without holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34991793A JPH07197937A (en) | 1993-12-29 | 1993-12-29 | Manufacture of deep groove ball bearing without holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07197937A true JPH07197937A (en) | 1995-08-01 |
Family
ID=18406984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34991793A Pending JPH07197937A (en) | 1993-12-29 | 1993-12-29 | Manufacture of deep groove ball bearing without holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07197937A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011105919A1 (en) * | 2010-02-26 | 2011-09-01 | Marina, Mateusz Kusznierewicz | Rolling bearing with transversal groove |
| CN104314998A (en) * | 2014-09-28 | 2015-01-28 | 宁波更大集团有限公司 | Bearing processing method |
| WO2019098863A1 (en) | 2017-11-16 | 2019-05-23 | Zbigniew Kusznierewicz | Rolling bearing |
| CN113074187A (en) * | 2021-04-10 | 2021-07-06 | 山东瑞新轴承制造有限公司 | Industrial silt-prevention cylindrical roller bearing |
| WO2021182979A1 (en) | 2020-03-12 | 2021-09-16 | Zbigniew Kusznierewicz | Rolling bearing |
-
1993
- 1993-12-29 JP JP34991793A patent/JPH07197937A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011105919A1 (en) * | 2010-02-26 | 2011-09-01 | Marina, Mateusz Kusznierewicz | Rolling bearing with transversal groove |
| CN104314998A (en) * | 2014-09-28 | 2015-01-28 | 宁波更大集团有限公司 | Bearing processing method |
| WO2019098863A1 (en) | 2017-11-16 | 2019-05-23 | Zbigniew Kusznierewicz | Rolling bearing |
| US11009073B2 (en) | 2017-11-16 | 2021-05-18 | Zbigniew KUSZNIEREWICZ | Rolling bearing |
| WO2021182979A1 (en) | 2020-03-12 | 2021-09-16 | Zbigniew Kusznierewicz | Rolling bearing |
| CN113074187A (en) * | 2021-04-10 | 2021-07-06 | 山东瑞新轴承制造有限公司 | Industrial silt-prevention cylindrical roller bearing |
| CN113074187B (en) * | 2021-04-10 | 2022-09-02 | 山东瑞新轴承制造有限公司 | Industrial silt-prevention cylindrical roller bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4896976A (en) | Supporting disk for a supporting disk bearing | |
| US7392732B2 (en) | Scribing tool and method | |
| US6694843B2 (en) | Preloaded shock absorbing bushing and cam follower | |
| JPH07317778A (en) | Manufacture of split bearing | |
| US5423616A (en) | Supporting disk for a supporting disk bearing arrangement for open-end spinning rotors | |
| JPH07197937A (en) | Manufacture of deep groove ball bearing without holder | |
| JPH06248611A (en) | Cutting chisel device for road cutting machine | |
| JP3262395B2 (en) | Spindle device of machine tool | |
| JPH07185921A (en) | Drilling device having drilling spindle capable of radial displacement | |
| JP5144887B2 (en) | Rotating tool | |
| US5349809A (en) | Shaft for an open-end spinning rotor assembly | |
| JP3431219B2 (en) | Spindle device of machine tool | |
| US3367068A (en) | Grinding wheel mounting | |
| JPH09234383A (en) | Rotary blade for shearing crusher | |
| US6656027B2 (en) | Grinding machine | |
| JP2006150535A (en) | Cutting tool | |
| KR960017052A (en) | Spherical processing machine | |
| US5513812A (en) | Grinding roller | |
| JP7509072B2 (en) | Gas Bearing Pads | |
| JPS5821668Y2 (en) | round blade tools | |
| JP2007078037A (en) | Hydrostatic thrust bearing device | |
| JP2003300616A (en) | Table and table device | |
| JP2002018660A (en) | Tool holder | |
| JP2006150472A (en) | Processing device of cracking groove for connecting rod | |
| KR100590735B1 (en) | A Dia Holder For Scriber |