JPH0746814Y2 - Self-lubricating deep groove ball bearing - Google Patents
Self-lubricating deep groove ball bearingInfo
- Publication number
- JPH0746814Y2 JPH0746814Y2 JP1990079916U JP7991690U JPH0746814Y2 JP H0746814 Y2 JPH0746814 Y2 JP H0746814Y2 JP 1990079916 U JP1990079916 U JP 1990079916U JP 7991690 U JP7991690 U JP 7991690U JP H0746814 Y2 JPH0746814 Y2 JP H0746814Y2
- Authority
- JP
- Japan
- Prior art keywords
- ball
- self
- deep groove
- bent
- ball 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 - Fee Related
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
- 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
- F16C33/42—Ball cages made from wire or sheet metal strips
- F16C33/422—Ball cages made from wire or sheet metal strips made from sheet metal
- F16C33/425—Ball cages made from wire or sheet metal strips made from sheet metal from a single part, e.g. ribbon cages with one corrugated annular part
-
- 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
- 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
本考案は、自己潤滑型の深溝玉軸受に関する。 The present invention relates to a self-lubricating deep groove ball bearing.
【従来の技術】 玉軸受の保持器としては波形のものが一般的であるが、
深溝玉軸受の小径のものやミニチュアサイズのものでは
寸法上の制約により波形保持器の使用が困難である。こ
のため冠形の保持器が使用されるのが普通であり、一般
に薄板のプレス成形品の保持器が用いられている（例え
ば実公昭44-7450）。2. Description of the Related Art A corrugated cage is generally used as a cage for ball bearings.
It is difficult to use a corrugated cage with deep groove ball bearings of small diameter or miniature size due to dimensional restrictions. For this reason, a crown-shaped cage is usually used, and a cage of a press-formed product of a thin plate is generally used (for example, Japanese Utility Model Publication No. 44-7450).
プレス成形品の保持器では、そのボール案内部に生じて
いる破断面によってボール表面が摩耗しやすい。特にボ
ール全体を固体潤滑剤で形成したり、ボール表面に固体
潤滑層を設けたりした自己潤滑タイプの場合には固体潤
滑剤の磨耗が著しく、軸受からの発塵が多くなると共に
短寿命になってしまうという問題があった。 そこで、この考案の目的は、自己潤滑型深溝玉軸受にお
けるボール表面の摩耗を防止することにある。In the retainer of the press-formed product, the ball surface is easily worn due to the fracture surface generated in the ball guide portion. Especially in the case of self-lubricating type in which the entire ball is formed with a solid lubricant or a solid lubricant layer is provided on the ball surface, the solid lubricant is significantly worn, resulting in a large amount of dust from the bearing and a short life. There was a problem that it would end up. Therefore, an object of this invention is to prevent wear of the ball surface in a self-lubricating deep groove ball bearing.
上記目的を達成するため、この考案は、耐食材製の内輪
および外輪と、少なくとも表面に固体潤滑剤層が形成さ
れたボールと、上記ボールを保持する薄板のプレス成形
品からなる冠形の保持器を備えた自己潤滑型深溝玉軸受
において、上記保持器は、リング状の本体部と、上記本
体部から半径方向に曲げられてボールの半径よりも大き
な曲率半径を有するポケットの側壁を形成するＵ字状の
フランジ部と、上記フランジ部の端縁に連なり、ボール
と離れる方向に屈曲した屈曲部とを有することを特徴と
している。In order to achieve the above-mentioned object, the present invention provides a crown-shaped holding made of a food-resistant inner ring and an outer ring, a ball having a solid lubricant layer formed on at least the surface thereof, and a thin plate press-formed product holding the ball. In a self-lubricating deep groove ball bearing having a container, the cage forms a ring-shaped body portion and a sidewall of a pocket bent from the body portion in a radial direction and having a radius of curvature larger than a radius of a ball. It is characterized in that it has a U-shaped flange portion and a bent portion that is continuous with the edge of the flange portion and that is bent in a direction away from the ball.
プレス加工により、冠形の保持器のポケットを作ると、
ポケットの側壁にはプレス加工による破断面が生じる。
しかし、この考案では、ポケットの側壁がボールの半径
より大なる半径で本体から半径方向に曲げて形成されて
いる上に、その端縁からボールと離れる方向に屈曲した
屈曲部を有する。したがって、この考案によれば、ボー
ルとポケットの側壁との当たり面を１点にすることがで
き、ポケットの側壁の摩耗を極力防止することができる
上に、保持器がボールに対して傾斜したときにフランジ
部の端縁が潤滑膜をかき取ることを防止することができ
る。 すなわち、破断面がボール表面に接触することがないか
ら、屈曲部の端縁に粗な破断面が生じていても、これに
ボールが接触することがなく、破断面によってボール表
面が摩耗することはない。If you make a pocket of a crown-shaped cage by pressing,
A fracture surface is formed on the sidewall of the pocket by pressing.
However, in this invention, the side wall of the pocket is formed by being bent in the radial direction from the main body at a radius larger than the radius of the ball, and further, has a bent portion bent from the edge thereof in the direction away from the ball. Therefore, according to this invention, the contact surface between the ball and the side wall of the pocket can be made to be one point, wear of the side wall of the pocket can be prevented as much as possible, and the cage is inclined with respect to the ball. It is possible to prevent the edge of the flange portion from scraping off the lubricating film. In other words, since the fracture surface does not contact the ball surface, even if there is a rough fracture surface at the edge of the bent portion, the ball does not come into contact with it and the ball surface wears due to the fracture surface. There is no.
以下、この考案を図示の一実施例について説明する。 第1,2,3図において、１は例えばステンレスのような耐
食材製の外輪、２は同じ材料からなる内輪、３はカーボ
ンのような自己潤滑性を有する固体材料からなるボー
ル、４は内外輪と同様な耐食材の薄板をプレス成形して
得た冠形の保持器である。ボール３の硬度は内外輪1,2
の硬度よりも高く形成されている。なお、ボール３は全
体が固体潤滑材でなく、例えばMoS2、Ag,Auのような固
体潤滑剤のコーティングによって表面に潤滑剤層を形成
したものであってもよい。 ５はフランジ部、６はフランジ部５の端縁に連なる屈曲
部であり、上記フランジ部５は保持器４のリング状の本
体部4aから半径方向外側に屈曲して形成され、その内部
にポケット７を形成して軸方向に開口したＵ字状をして
いる。第２図に示すように、フランジ部５はボール３の
半径ｒよりも大きい曲率半径Ｒで形成されており、更に
屈曲部６はボール３から離れる方向に曲げられている。 したがって、この実施例いよれば、ボール３とポケット
７の側壁との当たり面を１点にすることができ、ポケッ
ト側壁の摩耗を極力防止することができる上に、保持器
４がボール３に対して傾斜したときに、フランジ部５の
端縁が潤滑膜をかき取ることを防止することができる。 この実施例は上述のような構成であり、ボール３はその
表面がフランジ部５の内面のほぼ中央部分に接触した状
態で保持される。フランジ部５の内面は破断面がなく、
平滑であり、また粗な破断面が生じている可能性がある
屈曲部６の先端には屈曲部６がボール３と離れる方向に
屈曲しているためボール６が触れることはない。従っ
て、ボール３が屈曲部６の先端等で傷を付けられたり、
摩耗したりすることがなく、自己潤滑性を長時間保持す
ることができる。The present invention will be described below with reference to an embodiment shown in the drawings. In FIGS. 1, 2, and 3, 1 is an outer ring made of a food-resistant material such as stainless steel, 2 is an inner ring made of the same material, 3 is a ball made of a solid material having a self-lubricating property such as carbon, and 4 is an inner side and an outer side. It is a crown-shaped cage obtained by press-molding a thin plate of a food material similar to a wheel. The hardness of the ball 3 is 1, 2
Is formed to have a hardness higher than that of The ball 3 may not be a solid lubricant as a whole, and may have a lubricant layer formed on the surface thereof by coating with a solid lubricant such as MoS 2 , Ag, Au. Reference numeral 5 is a flange portion, and 6 is a bent portion continuing to the edge of the flange portion 5. The flange portion 5 is formed by bending the ring-shaped main body portion 4a of the cage 4 outward in the radial direction, and has a pocket inside thereof. 7 is formed to have a U-shape that is opened in the axial direction. As shown in FIG. 2, the flange portion 5 is formed with a radius of curvature R that is larger than the radius r of the ball 3, and the bent portion 6 is bent in a direction away from the ball 3. Therefore, according to this embodiment, the contact surface between the ball 3 and the side wall of the pocket 7 can be set to one point, wear of the side wall of the pocket can be prevented as much as possible, and the cage 4 can be attached to the ball 3. It is possible to prevent the lubricant film from being scraped off by the edge of the flange portion 5 when tilted. This embodiment has the structure as described above, and the ball 3 is held in a state where its surface is in contact with the substantially central portion of the inner surface of the flange portion 5. The inner surface of the flange 5 has no fracture surface,
The tip of the bent portion 6, which is smooth and may have a rough fracture surface, is not bent because the bent portion 6 is bent in a direction away from the ball 3. Therefore, the ball 3 may be damaged by the tip of the bent portion 6, or the like.
The self-lubricating property can be maintained for a long time without being worn.
以上より明らかなように、この考案は、自己潤滑性のボ
ールを保持する冠形の保持器のフランジ部を、ボールの
半径より大なる半径でリング状の本体から半径方向に屈
曲して形成して、その端縁から屈曲部をボールから離れ
る方向に曲げたものである。 したがって、この考案によれば、ボールとポケットの側
壁との当たり面を１点にすることができ、ポケットの側
壁の磨耗を極力防止することができる上に、保持器がボ
ールに対して傾斜したときにフランジ部の端縁が潤滑膜
をかき取ることを防止することができる。 従って、この考案によれば、プレス成形品の冠形保持器
を使用しても、破断面によるボールの傷付きや摩耗がな
くなり、発塵を防止でき、ボールの自己潤滑性を十分発
揮しながら長期間の使用に耐える自己潤滑型深溝玉軸受
を得ることができるのである。As is clear from the above, according to the present invention, the flange portion of the crown-shaped cage for holding the self-lubricating ball is formed by bending the ring-shaped main body in the radial direction with a radius larger than the radius of the ball. Then, the bent portion is bent from the edge in a direction away from the ball. Therefore, according to this invention, the contact surface between the ball and the side wall of the pocket can be set to one point, wear of the side wall of the pocket can be prevented as much as possible, and the cage is inclined with respect to the ball. It is possible to prevent the edge of the flange portion from scraping off the lubricating film. Therefore, according to this invention, even if a crown-shaped cage of a press-molded product is used, scratches and abrasion of the ball due to the fracture surface are eliminated, dust can be prevented, and self-lubrication of the ball can be fully exhibited. It is possible to obtain a self-lubricating deep groove ball bearing that can withstand long-term use.
第１図はこの考案の一実施例の断面図、第２図は第１図
のＡ−Ａ線断面の要部を示した図、第３図は第２図の平
面図である。 １……外輪、２……内輪、３……ボール、４……保持
器、4a……本体部、５……フランジ部、６……屈曲部、
７……ポケット。FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a view showing a main part of a sectional view taken along line AA of FIG. 1, and FIG. 3 is a plan view of FIG. 1 ... Outer ring, 2 ... Inner ring, 3 ... Ball, 4 ... Retainer, 4a ... Main body part, 5 ... Flange part, 6 ... Bent part,
7 ... Pocket.
Claims (1)
表面に固体潤滑剤層が形成されたボールと、上記ボール
を保持する薄板のプレス成形品からなる冠形の保持器を
備えた自己潤滑型深溝玉軸受において、 上記保持器は、リング状の本体部と、上記本体部から半
径方向に曲げられてボールの半径よりも大きな曲率半径
を有するポケットの側壁を形成するＵ字状のフランジ部
と、上記フランジ部の端縁に連なり、ボールと離れる方
向に屈曲した屈曲部とを有することを特徴とする自己潤
滑型深溝玉軸受。1. Self-lubrication comprising an inner ring and an outer ring made of a food-resistant material, a ball having a solid lubricant layer formed on at least the surface thereof, and a crown-shaped cage made of a thin press-formed product for holding the ball. In a deep groove ball bearing, the cage comprises a ring-shaped main body portion and a U-shaped flange portion that is bent in a radial direction from the main body portion and forms a side wall of a pocket having a radius of curvature larger than a radius of a ball. A self-lubricating deep groove ball bearing, characterized in that the self-lubricating deep groove ball bearing has a bent portion that is connected to an edge of the flange portion and that is bent in a direction away from the ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990079916U JPH0746814Y2 (en) | 1990-07-27 | 1990-07-27 | Self-lubricating deep groove ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990079916U JPH0746814Y2 (en) | 1990-07-27 | 1990-07-27 | Self-lubricating deep groove ball bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0439326U JPH0439326U (en) | 1992-04-03 |
| JPH0746814Y2 true JPH0746814Y2 (en) | 1995-10-25 |
Family
ID=31624511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990079916U Expired - Fee Related JPH0746814Y2 (en) | 1990-07-27 | 1990-07-27 | Self-lubricating deep groove ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0746814Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010121649A (en) * | 2008-11-17 | 2010-06-03 | Ntn Corp | Self-aligning ball bearing with cage |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS544532Y2 (en) * | 1974-07-22 | 1979-02-27 | ||
| JPH0637897B2 (en) * | 1985-08-23 | 1994-05-18 | 光洋精工株式会社 | Rolling bearing |
-
1990
- 1990-07-27 JP JP1990079916U patent/JPH0746814Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0439326U (en) | 1992-04-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |