JPH0814251A - Holder for thrust roller bearing - Google Patents
Holder for thrust roller bearingInfo
- Publication number
- JPH0814251A JPH0814251A JP14892494A JP14892494A JPH0814251A JP H0814251 A JPH0814251 A JP H0814251A JP 14892494 A JP14892494 A JP 14892494A JP 14892494 A JP14892494 A JP 14892494A JP H0814251 A JPH0814251 A JP H0814251A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- folded
- cage
- diameter side
- guide surface
- 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
- Rolling Contact Bearings (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、スラストころ軸受に
用いられるプレス鋼板製の保持器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cage made of a pressed steel plate used for thrust roller bearings.
【0002】[0002]
【従来の技術】スラストころ軸受の保持器において、耐
熱性に優れ、材料費の低減と軽量化を図ったものとし
て、薄肉の鋼板をプレス加工により一体成形した保持器
が知られている。2. Description of the Related Art As a cage for thrust roller bearings, a cage formed by press forming a thin steel plate is known as a cage having excellent heat resistance, a reduced material cost and a reduced weight.
【0003】このプレス鋼板製の保持器は、図1及び図
6に示すように、保持器の強度を確保するために、環状
の鋼板2の端面3において内径側端部と外径側端部及び
内外径端部間の中央部を、それぞれプレス加工によって
鋼板の厚み方向の同一方向に屈曲させた後折返し、その
3つの屈曲折返し部4、5、6により鋼板2の円周方向
の断面をほぼW字形状に変形させている。As shown in FIGS. 1 and 6, this cage made of pressed steel plate has an inner diameter side end portion and an outer diameter side end portion at an end surface 3 of an annular steel plate 2 in order to secure the strength of the cage. And the center portion between the inner and outer diameter ends is bent by pressing in the same direction in the thickness direction of the steel sheet and then folded back, and the three bent folding portions 4, 5 and 6 form a cross section in the circumferential direction of the steel sheet 2. It is transformed into a substantially W shape.
【0004】また、鋼板2の端面に、円周方向に一定間
隔で複数のポケット7を形成し、その各ポケット7に収
納した円筒ころ10の周面を、中央部の屈曲折返し部6
とその両側のポケット側面8、9で保持している。Further, a plurality of pockets 7 are formed on the end surface of the steel plate 2 at regular intervals in the circumferential direction, and the peripheral surface of the cylindrical roller 10 housed in each pocket 7 is bent and folded at the central portion.
It is held by the pocket side surfaces 8 and 9 on both sides.
【0005】上記のプレス鋼板製保持器1は、図5に示
すように、各ポケット7に収納した円筒ころ10を内輪
13と外輪14により挾み付けた状態で、ハウジング1
1と軸12の間に組込むことでスラストころ軸受を構成
するようになっており、内径側の折返し部4aと軸1
2、或いは外径側の折返し部5aとハウジング11が滑
り接触して回転を案内するようになっている。As shown in FIG. 5, the cage 1 made of pressed steel plate has a housing 1 with a cylindrical roller 10 housed in each pocket 7 held between an inner ring 13 and an outer ring 14.
The thrust roller bearing is configured by being assembled between the shaft 1 and the shaft 12, and the folded portion 4a on the inner diameter side and the shaft 1 are arranged.
2, or the folded portion 5a on the outer diameter side and the housing 11 are in sliding contact with each other to guide the rotation.
【0006】上記回転の案内面となる内径側又は外径側
の折返し部4a、5aは、鋼板の端縁の耐変形強度を上
げるために、各屈曲部4b、5bと密着させて折返され
ており、その先端部は、中央部の屈曲折返し部6と共に
鋼板2の平坦な端面3とほぼ同一平面をなすように形成
されている。The inner-diameter side or outer-diameter side folded-back portions 4a and 5a, which serve as guide surfaces for rotation, are folded back in close contact with the bent portions 4b and 5b in order to increase the deformation resistance of the edges of the steel sheet. The front end portion is formed to be substantially flush with the flat end surface 3 of the steel plate 2 together with the bent and folded portion 6 in the central portion.
【0007】[0007]
【発明が解決しようとする課題】ところで、上記のよう
に内径案内又は外径案内方式の保持器1では、軸受の回
転数が高い条件下で、案内面となる折返し部4a、5a
とハウジング11又は軸12の表面との間の面圧が大き
くなり、案内面の摩耗を発生させる場合がある。By the way, in the cage 1 of the inner diameter guide type or the outer diameter guide type as described above, the folded-back portions 4a, 5a serving as guide surfaces are provided under the condition that the rotation speed of the bearing is high.
The surface pressure between the housing and the surface of the housing 11 or the shaft 12 becomes large, which may cause wear of the guide surface.
【0008】特に、潤滑条件が厳しい状況下や、ラジア
ル分力が発生する条件下では、案内面の面圧が著しく大
きくなり、摩耗の進行が早まる不具合がある。In particular, under severe lubrication conditions or under conditions where a radial component force is generated, there is a problem that the surface pressure of the guide surface becomes extremely large and the progress of wear is accelerated.
【0009】このような問題に対処する方法として、保
持器1の折返し部4a、5aの表面硬度を高くし、摩耗
の進行を抑える方法があるが、この方法では、ハウジン
グ11や軸12の表面硬度も同様に高くする必要があ
り、軸受の製造工程の増加やコスト上昇を生じさせる欠
点がある。As a method of dealing with such a problem, there is a method of increasing the surface hardness of the folded portions 4a, 5a of the cage 1 to suppress the progress of wear. In this method, the surface of the housing 11 or the shaft 12 is The hardness also needs to be increased, which has the drawback of increasing the manufacturing process of the bearing and increasing the cost.
【0010】そこで、この発明は、上記の問題を解決
し、製造工程の追加やコストを増大させることなく、保
持器の案内面とその案内面が接触する案内部材表面の摩
耗進行を抑えることができるスラストころ軸受の保持器
を提供することを目的としている。Therefore, the present invention solves the above problems and suppresses the progress of wear of the guide surface of the cage and the surface of the guide member with which the guide surface contacts without increasing the manufacturing process and increasing the cost. It is an object of the present invention to provide a cage for a thrust roller bearing that can be manufactured.
【0011】[0011]
【課題を解決するための手段】上記の課題を解決するた
め、この発明は、環状の鋼板の端面において内径側端部
と外径側端部及び内外径端部間の中央部を、それぞれ鋼
板の厚み方向の同一方向に屈曲させた後折返し、鋼板の
端面に、円周方向に所定間隔で複数のポケットを形成
し、そのポケットに収納したころを、中央部の屈曲折返
し部とその両側のポケット側面で保持し、上記内径側と
外径側の折返し部の一方又は両方を、鋼板の端面に対し
て鋼板の厚み方向に延長させ、その延長した折返し部を
他部材と接触する回転案内面としたのである。In order to solve the above-mentioned problems, the present invention relates to an inner surface of an annular steel plate, an inner diameter side end portion, an outer diameter side end portion, and a center portion between the inner and outer diameter end portions, respectively. After bending back in the same direction in the thickness direction, a plurality of pockets are formed on the end surface of the steel plate at predetermined intervals in the circumferential direction, and the rollers housed in the pockets are bent at the center and at both sides. A rotation guide surface that is held by the side surface of the pocket, and one or both of the folded portions on the inner diameter side and the outer diameter side are extended in the thickness direction of the steel sheet with respect to the end surface of the steel sheet, and the extended folded portions contact other members. It was.
【0012】[0012]
【作用】上記の構成においては、案内面となる内径側又
は外径側の折返し部を延長させることにより、案内面の
面積が拡大し、その拡大した分だけ案内面の単位面積に
作用する面圧を小さくすることができる。したがって、
案内面における摩耗の進行が抑制され、保持器やそれが
接触する案内部材の耐久性を向上させることができる。In the above construction, the area of the guide surface is expanded by extending the folded portion on the inner diameter side or the outer diameter side, which becomes the guide surface, and the surface that acts on the unit area of the guide surface by the expanded amount. The pressure can be reduced. Therefore,
The progress of wear on the guide surface is suppressed, and the durability of the cage and the guide member with which the cage contacts can be improved.
【0013】[0013]
【実施例】以下、図1及び図2に基づいてこの発明の実
施例を説明する。この保持器1は、内径案内方式のもの
であり、環状の鋼板2の端面3において、内径側と外径
側及び中央部にそれぞれ屈曲折返し部4、5、6を形成
し、その中央部の屈曲折返し部6を径方向に横断する大
きさで複数のポケット7を形成している。また、内径側
の折返し部4aの先端を、鋼板2の平坦な端面3に対し
て鋼板の厚み方向に延長させ、その延長した折返し部4
aの全面を、軸12と滑り接触させる回転案内面として
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. This cage 1 is of an inner diameter guide type, and in the end surface 3 of an annular steel plate 2, bent and folded portions 4, 5 and 6 are formed on the inner diameter side, the outer diameter side and the central portion, respectively. A plurality of pockets 7 are formed with a size that crosses the bent and folded portion 6 in the radial direction. Further, the tip of the folded-back portion 4a on the inner diameter side is extended in the thickness direction of the steel sheet with respect to the flat end surface 3 of the steel sheet 2, and the extended folded-back portion 4 is formed.
The entire surface of a is used as a rotation guide surface that makes sliding contact with the shaft 12.
【0014】上記の構造では、図6に示した従来品と比
べて、延長した分だけ内径側の折返し部4aの面積が拡
大し、折返し部4aと軸12との接触において、その接
触面の単位面積当りに作用する面圧が小さくなる。この
ため、回転数の高い条件下やラジアル分力に作用する条
件下においても、折返し部4aと軸12の滑り接触が円
滑になって、接触面に発生する摩耗を抑えることがで
き、軸と保持器の案内面の耐久性を上げることができ
る。In the structure described above, the area of the folded-back portion 4a on the inner diameter side is expanded by the amount of extension compared with the conventional product shown in FIG. 6, and when the folded-back portion 4a and the shaft 12 come into contact with each other, the contact surface The surface pressure acting per unit area becomes small. Therefore, even under a condition of high rotational speed or a condition in which a radial component force is exerted, sliding contact between the folded-back portion 4a and the shaft 12 is made smooth, and wear generated on the contact surface can be suppressed. The durability of the guide surface of the cage can be improved.
【0015】上記のように、折返し部4aの先端だけを
延長させる加工は、プレス用金型の形状を若干修正する
だけで対応でき、新たな表面処理の追加やプレス加工の
作業工程を増加させる必要がないため、従来品とほぼ同
じ製造コストで製作することができる。As described above, the processing for extending only the tip of the folded-back portion 4a can be dealt with by slightly modifying the shape of the press die, and the addition of new surface treatment and the work process of the press processing are increased. Since it is not necessary, it can be manufactured at almost the same manufacturing cost as the conventional product.
【0016】図3は、上記とは逆に、外径案内方式の保
持器に適用した実施例を示しており、この場合は、ハウ
ジング11と滑り接触する外径側の折返し部5aの先端
を、端面3に対して鋼板2の厚み方向に延長させてい
る。In contrast to the above, FIG. 3 shows an embodiment applied to a cage of an outer diameter guide type. In this case, the tip of the folded portion 5a on the outer diameter side which makes sliding contact with the housing 11 is provided. The end face 3 is extended in the thickness direction of the steel plate 2.
【0017】他の構造や作用については、上述した実施
例と同じであり、同一部位に同じ符号を付して説明を省
略する。Other structures and operations are the same as those in the above-mentioned embodiment, and the same parts are designated by the same reference numerals and the description thereof will be omitted.
【0018】一方、図4に示す保持器は、内径側と外径
側の折返し部4a、5aを共に鋼板2の端面に対して厚
み方向に延長させたものであり、内径案内方式と外径案
内方式のどちらにも使用できるようにしている。On the other hand, in the cage shown in FIG. 4, both the inner diameter side and the outer diameter side folded-back portions 4a, 5a are extended in the thickness direction with respect to the end surface of the steel plate 2, and the inner diameter guide method and the outer diameter are adopted. It can be used for both directions.
【0019】なお、上述した各実施例において、折返し
部4a、5aを延長させる幅は、案内面の面圧を有効に
低減できる幅以上で、軸受の内部設計上許容できる幅の
範囲内で設定するようにする。In each of the above-described embodiments, the width for extending the folded-back portions 4a, 5a is set to a width that is more than the width that can effectively reduce the surface pressure of the guide surface, and is set within a width that is allowable in the internal design of the bearing. To do so.
【0020】[0020]
【効果】以上のように、この発明は、保持器の内外径側
の折返し部を延長させ、案内面に作用する面圧を下げる
ようにしたので、案内面の滑りが円滑になって摩耗の発
生を抑制することができ、保持器とそれが接触する案内
部材の耐久寿命を大きく向上させることができる。As described above, according to the present invention, the folded portion on the inner and outer diameter sides of the retainer is extended to reduce the surface pressure acting on the guide surface, so that the guide surface slides smoothly and wear is prevented. It is possible to suppress the generation, and it is possible to greatly improve the durable life of the cage and the guide member that comes into contact with the cage.
【0021】また、折返し部の延長は、プレス金型の簡
単な修正等で対応でき、表面処理やプレス工程の追加を
必要としないため、製造コストの上昇を抑えることがで
き、安価で軽量のプレス鋼板製保持器を提供できる利点
がある。Further, the extension of the folded-back portion can be dealt with by a simple modification of the press die and the like, which does not require surface treatment or addition of a pressing step, so that an increase in manufacturing cost can be suppressed, and the cost is low and lightweight. There is an advantage that a cage made of pressed steel plate can be provided.
【図1】保持器を示す平面図FIG. 1 is a plan view showing a cage.
【図2】実施例を示す断面図FIG. 2 is a sectional view showing an example.
【図3】他の実施例を示す断面図FIG. 3 is a sectional view showing another embodiment.
【図4】他の実施例を示す断面図FIG. 4 is a sectional view showing another embodiment.
【図5】スラストころ軸受を示す断面図FIG. 5 is a sectional view showing a thrust roller bearing.
【図6】従来の保持器を示す断面図FIG. 6 is a sectional view showing a conventional cage.
1 保持器 2 鋼板 3 端面 4、5、6 屈曲折返し部 4a、5a 折返し部 7 ポケット 8、9 ポケット側面 10 円筒ころ 11 ハウジング 12 軸 13 内輪 14 外輪 DESCRIPTION OF SYMBOLS 1 Cage 2 Steel plate 3 End surface 4, 5, 6 Bending folded part 4a, 5a Folded part 7 Pocket 8, 9 Pocket side face 10 Cylindrical roller 11 Housing 12 Shaft 13 Inner ring 14 Outer ring
Claims (1)
外径側端部及び内外径端部間の中央部を、それぞれ鋼板
の厚み方向の同一方向に屈曲させた後折返し、上記鋼板
の端面に、円周方向に所定間隔で複数のポケットを形成
し、そのポケットに収納したころを、上記中央部の屈曲
折返し部とその両側のポケット側面で保持し、上記内径
側と外径側の折返し部の一方又は両方を、鋼板の端面に
対して鋼板の厚み方向に延長させ、その延長した折返し
部を他部材と接触する回転案内面としたスラストころ軸
受用保持器。1. An end face of an annular steel plate is bent in the same direction in the thickness direction of the steel plate at the center part between the inner diameter side end part, the outer diameter side end part and the inner and outer diameter end parts, and then folded back to form the steel plate. On the end face, a plurality of pockets are formed at predetermined intervals in the circumferential direction, and the rollers housed in the pockets are held by the bent portion of the center and the side faces of the pockets on both sides of the pocket. A cage for thrust roller bearings, wherein one or both of the folded-back portions are extended in the thickness direction of the steel sheet with respect to the end surface of the steel sheet, and the extended folded-back portions serve as rotation guide surfaces for contacting other members.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14892494A JPH0814251A (en) | 1994-06-30 | 1994-06-30 | Holder for thrust roller bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14892494A JPH0814251A (en) | 1994-06-30 | 1994-06-30 | Holder for thrust roller bearing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0814251A true JPH0814251A (en) | 1996-01-16 |
Family
ID=15463713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14892494A Pending JPH0814251A (en) | 1994-06-30 | 1994-06-30 | Holder for thrust roller bearing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0814251A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10223432A1 (en) * | 2002-05-25 | 2003-12-04 | Ina Schaeffler Kg | Cage for needle bearing has end rings connected by axial bars which have raised end and central sections connected by lowered sections and sloping sections |
US7866348B2 (en) | 2008-05-01 | 2011-01-11 | Saint-Gobain Performance Plastics Corporation | Multi-layered fuel tubing |
US8092881B2 (en) | 2008-05-01 | 2012-01-10 | Saint-Gobain Performance Plastics Corporation | Multi-layered fuel tubing |
JP2014095458A (en) * | 2012-11-12 | 2014-05-22 | Jtekt Corp | Roller holder and thrust roller bearing with the same |
-
1994
- 1994-06-30 JP JP14892494A patent/JPH0814251A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10223432A1 (en) * | 2002-05-25 | 2003-12-04 | Ina Schaeffler Kg | Cage for needle bearing has end rings connected by axial bars which have raised end and central sections connected by lowered sections and sloping sections |
US7866348B2 (en) | 2008-05-01 | 2011-01-11 | Saint-Gobain Performance Plastics Corporation | Multi-layered fuel tubing |
US8092881B2 (en) | 2008-05-01 | 2012-01-10 | Saint-Gobain Performance Plastics Corporation | Multi-layered fuel tubing |
JP2014095458A (en) * | 2012-11-12 | 2014-05-22 | Jtekt Corp | Roller holder and thrust roller bearing with the same |
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