JP4340419B2 - Synthetic resin cage - Google Patents
Synthetic resin cage Download PDFInfo
- Publication number
- JP4340419B2 JP4340419B2 JP2002152262A JP2002152262A JP4340419B2 JP 4340419 B2 JP4340419 B2 JP 4340419B2 JP 2002152262 A JP2002152262 A JP 2002152262A JP 2002152262 A JP2002152262 A JP 2002152262A JP 4340419 B2 JP4340419 B2 JP 4340419B2
- Authority
- JP
- Japan
- Prior art keywords
- engagement
- cage
- engaging
- hole
- claw
- 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
Images
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
- F16C33/3837—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages
- F16C33/3862—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages comprising two annular parts joined together
- F16C33/3875—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages comprising two annular parts joined together made from plastic, e.g. two injection moulded parts joined by a snap fit
-
- 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
- F16C33/3887—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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/06—Placing rolling bodies in cages or bearings
-
- 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
-
- 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
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/70—Positive connections with complementary interlocking parts
- F16C2226/74—Positive connections with complementary interlocking parts with snap-fit, e.g. by clips
-
- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/20—Application independent of particular apparatuses related to type of movement
- F16C2300/22—High-speed rotation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Description
【0001】
【発明の属する技術分野】
この発明は、主として高速回転用玉軸受内に組み込まれる合成樹脂製保持器に関するものである。
【0002】
【従来の技術】
高速回転用玉軸受の合成樹脂製保持器として、実開平6−1848号公報に記載されたものが従来から知られている。この公報に記載された合成樹脂製保持器においては、リング状の保持器本体の一側面に対向一対の爪を周方向に等間隔に設け、対向一対の爪間にボール保持用のポケットを形成し、隣接するポケット間の隣接する爪間に連結脚を設け、その連結脚にリング状の蓋体を連結している。
【0003】
上記合成樹脂製保持器においては、保持器本体に蓋体を連結することによって、保持器本体の外径方向への変形を防止することができるため、剛性の高い保持器を得ることができ、高速回転用として使用することができるという特徴を有する。
【0004】
【発明が解決しようとする課題】
ところで、上記従来の合成樹脂製保持器においては、保持器本体の成形用金型と、蓋体の成形用金型の2種類の成形金型を必要とするため、合成樹脂製保持器のコストが高く、そのコストを低減化を図るうえにおいて改善すべき点が残されている。
【0005】
また、保持器本体と蓋体をそれぞれ別々に管理する必要があるため、管理工数が増え、その管理工数を少なくするうえにおいても改善すべき点が残されている。
【0006】
この発明の課題は、高速回転用に使用することができるコストの安い組立ての容易な合成樹脂製保持器を提供することである。
【0007】
【課題を解決するための手段】
上記の課題を解決するために、この発明においては、2枚の合成樹脂製環状体から成り、各環状体の互いに衝合される一側面のそれぞれにボールの外周に沿う複数の半球状ポケットを周方向に等間隔に形成し、隣接するポケット間の結合部それぞれに結合部の両側面に貫通する角形の係合孔を形成し、結合部の一側面には、保持器軸方向に延びて他方の環状体の係合孔に挿入される断面角形の係合爪を、その係合孔側の一端面が、係合孔の保持器周方向で対向する一方の端面と同一面を形成するように設け、前記係合孔の内周一端面に係合段部を形成し、係合爪の先端部にその係合段部に係合される鈎部を設け、前記係合爪を他方の環状体の係合孔に挿入し、鈎部を係合段部に係合させて2枚の環状体を連結する組立状態で係合爪の先端が他方の環状体の結合部の平坦面から出っ張らない寸法関係とした構成を採用したのである。
【0008】
上記のように、環状体の結合部に係合爪と係合孔とを形成することによって、ポケット数が偶数であっても奇数であっても2枚の環状体を同一の形状とすることができる。このため、成形用金型は1種類でよく、合成樹脂製保持器のコストの低減を図ることができると共に、部品の管理も容易である。
【0009】
【発明の実施の形態】
以下、この発明の実施の形態を図面に基づいて説明する。図3および4に示すように、この発明に係る保持器は、2枚の環状体1、1から成り、各環状体1は合成樹脂により成形されて同一の形状とされている。
【0010】
図1および図2に示すように、環状体1は平面形状が波形とされ、その一側面にはボールBの外周に沿う半球状のポケット2が周方向に等間隔に設けられている。
【0011】
また、環状体1には、隣接するポケット2間に形成された結合部4に両側面に貫通する係合孔5と、他方の環状体1に形成された上記係合孔5に挿入される係合爪6とが形成されている。
【0012】
係合孔5の内周には係合段部5aが形成され、一方、係合爪6の先端部にはその係合段部5aに係合される鈎部6aが設けられている。
【0013】
7は、結合部4の他側に形成された平坦面を示す。
【0014】
2枚の環状体1、1は、半球状ポケット2が対向するよう組み合わせられ、係合孔5に対する係合爪6の係合によって結合一体化され、図4に示す保持器Aが組み立てられる。
【0015】
ここで、保持器Aの組立ては、外輪と内輪間に複数のボールを組み込んだのち、その両輪の両側方から両輪間に形成される環状空間内に2枚の環状体1、1を嵌合して、係合孔5に係合爪6を挿入する。
【0016】
このように、係合孔5に対する係合爪6の係合によって保持器Aを組み立てることができるため、組立てが容易であると共に、係合孔5と係合爪6の係合によって環状体1の外径方向の変形を防止することができるため、剛性の高い保持器Aを得ることができ、高速回転用として使用することができる。
【0017】
また、保持器Aを形成する2枚の環状体1は同一形状であるため、1種類の成形用金型で成形することができ、コストの安い保持器Aを得ることができると共に、環状体1の管理も容易である。
【0018】
実施の形態で示すように、係合爪6を、その先端6bが結合部4の平坦面7より出張らない寸法関係とすることにより、保持器Aの組立て時、一方の環状体1の平坦面7を受け、他方の環状体1の平坦面7を押すことによって保持器Aを容易に組立てることができる。
【0019】
【発明の効果】
以上のように、この発明においては、保持器を形成する2枚の環状体が同一形状であるため、1種類の成形用金型により成形することができ、コストの安い保持器を得ることができる。
【0020】
また、2枚の環状体は係合孔と係合爪の係合によって結合一体化されるため、組立てが容易であると共に、外径方向に変形することが少ない剛性の高い保持器を得ることができ、高速回転用として使用することができる。
【図面の簡単な説明】
【図1】この発明に係る保持器の成形用の環状体を示す正面図
【図2】図1の一部分を示す断面図
【図3】2枚の環状体の一部分を示す分解斜視図
【図4】2枚の環状体より組立てられた保持器の一部分を示す断面図
【符号の説明】
1 環状体
2 ポケット
4 結合部
5 係合孔
6 係合爪[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a synthetic resin cage incorporated in a ball bearing for high speed rotation.
[0002]
[Prior art]
As a synthetic resin cage for a ball bearing for high speed rotation, a cage described in Japanese Utility Model Laid-Open No. 6-1848 has been conventionally known. In the synthetic resin cage described in this publication, a pair of opposed claws are provided at equal intervals in the circumferential direction on one side surface of a ring-shaped cage body, and a ball holding pocket is formed between the opposed pair of claws. A connecting leg is provided between adjacent claws between adjacent pockets, and a ring-shaped lid is connected to the connecting leg.
[0003]
In the synthetic resin cage, by connecting the lid to the cage body, it is possible to prevent deformation in the outer diameter direction of the cage body, so that a highly rigid cage can be obtained, It can be used for high-speed rotation.
[0004]
[Problems to be solved by the invention]
By the way, since the conventional synthetic resin cage requires two types of molding dies, that is, a molding die for the cage body and a molding die for the lid, the cost of the synthetic resin cage is low. However, there is still a point to be improved in order to reduce the cost.
[0005]
In addition, since it is necessary to manage the cage body and the lid separately, the number of management man-hours increases, and there is still a point to be improved in reducing the management man-hours.
[0006]
An object of the present invention is to provide a synthetic resin cage that can be used for high-speed rotation and is easy to assemble at low cost.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, a plurality of hemispherical pockets along the outer periphery of the ball are formed on two side surfaces of each annular body which are abutted against each other. Formed at equal intervals in the circumferential direction, each of the joints between adjacent pockets has a rectangular engagement hole that penetrates both sides of the joint, and one side of the joint extends in the cage axial direction. The engaging claw having a square cross section to be inserted into the engaging hole of the other annular body has one end surface on the engaging hole side forming the same surface as the one end surface facing the engaging hole in the circumferential direction of the cage. An engagement step portion is formed on one end surface of the inner periphery of the engagement hole, and a hook portion that is engaged with the engagement step portion is provided at the distal end portion of the engagement claw. In the assembled state in which the two annular bodies are connected by inserting the collar portion into the engagement hole of the annular body and engaging the flange portion with the engagement step portion, It had adopted a configuration in which a dimensional relationship that does not project from the flat surface of the coupling portion of the annulus.
[0008]
As described above, by forming the engaging claw and the engaging hole in the coupling portion of the annular body, the two annular bodies have the same shape regardless of whether the number of pockets is even or odd. Can do. For this reason, only one type of molding die may be used, the cost of the synthetic resin cage can be reduced, and the management of the parts is easy.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 3 and 4, the cage according to the present invention includes two
[0010]
As shown in FIGS. 1 and 2, the
[0011]
Further, the
[0012]
An
[0013]
[0014]
The two
[0015]
Here, the cage A is assembled by inserting a plurality of balls between the outer ring and the inner ring, and then fitting the two
[0016]
As described above, the retainer A can be assembled by the engagement of the
[0017]
In addition, since the two
[0018]
As shown in the embodiment, the
[0019]
【The invention's effect】
As described above, in the present invention, since the two annular bodies forming the cage have the same shape, the cage can be molded with one type of molding die, and a low-cost cage can be obtained. it can.
[0020]
In addition, since the two annular bodies are coupled and integrated by the engagement of the engagement holes and the engagement claws, it is easy to assemble and obtain a highly rigid cage that hardly deforms in the outer diameter direction. Can be used for high-speed rotation.
[Brief description of the drawings]
FIG. 1 is a front view showing an annular body for molding a cage according to the present invention. FIG. 2 is a sectional view showing a part of FIG. 1. FIG. 3 is an exploded perspective view showing a part of two annular bodies. 4] A cross-sectional view showing a part of a cage assembled from two annular members.
DESCRIPTION OF
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002152262A JP4340419B2 (en) | 2002-05-27 | 2002-05-27 | Synthetic resin cage |
DE10324103A DE10324103B4 (en) | 2002-05-27 | 2003-05-27 | Resin cage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002152262A JP4340419B2 (en) | 2002-05-27 | 2002-05-27 | Synthetic resin cage |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2003343571A JP2003343571A (en) | 2003-12-03 |
JP4340419B2 true JP4340419B2 (en) | 2009-10-07 |
Family
ID=29545394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002152262A Expired - Lifetime JP4340419B2 (en) | 2002-05-27 | 2002-05-27 | Synthetic resin cage |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4340419B2 (en) |
DE (1) | DE10324103B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7498650B2 (en) | 2020-11-26 | 2024-06-12 | 日置電機株式会社 | Measurement Systems and Instruments |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100453836C (en) * | 2004-06-03 | 2009-01-21 | Ntn株式会社 | Synthetic resin retainer and ball bearing using the same |
JP4772381B2 (en) * | 2004-06-03 | 2011-09-14 | Ntn株式会社 | Synthetic resin cage and ball bearing using the cage |
JP4601450B2 (en) * | 2005-02-18 | 2010-12-22 | Ntn株式会社 | Ball bearing |
JP4601451B2 (en) * | 2005-02-18 | 2010-12-22 | Ntn株式会社 | Synthetic resin cage and ball bearing |
JP2007182968A (en) * | 2006-01-10 | 2007-07-19 | Ntn Corp | Rolling bearing and cage for rolling bearing |
DE202008015070U1 (en) * | 2008-11-13 | 2010-04-08 | Paul Hettich Gmbh & Co. Kg | Rolling element cage for a furniture pull-out guide |
JP5715001B2 (en) * | 2011-07-29 | 2015-05-07 | Ntn株式会社 | Radial ball bearings |
DE102013223749A1 (en) * | 2013-11-21 | 2015-05-21 | Schaeffler Technologies AG & Co. KG | Cage for a rolling bearing, in particular for a ball bearing |
JP6742068B2 (en) * | 2014-11-04 | 2020-08-19 | Ntn株式会社 | Synthetic resin cage and ball bearing |
JP6488726B2 (en) * | 2015-01-28 | 2019-03-27 | 株式会社ジェイテクト | Rolling bearing and method for producing resin cage |
KR101966194B1 (en) * | 2016-02-15 | 2019-04-05 | 셰플러코리아(유) | Cage for ball bearing |
JP7108373B2 (en) | 2016-10-21 | 2022-07-28 | Ntn株式会社 | ball bearing |
CN111779765A (en) * | 2020-05-19 | 2020-10-16 | 上海涟屹轴承科技有限公司 | Radial bearing structure for ship gearbox |
CN115199651A (en) * | 2022-07-11 | 2022-10-18 | 湖南珍珠轴承股份有限公司 | Symmetrical buckle retainer and bearing |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8016523U1 (en) * | 1980-09-18 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Two-part roller bearing cage | |
CH485959A (en) * | 1968-04-23 | 1970-02-15 | Riv Officine Di Villar Perosa | Ball bearing cage |
US4054340A (en) * | 1976-08-30 | 1977-10-18 | General Motors Corporation | Plastic antifriction bearing cage |
IT8122458V0 (en) * | 1980-08-02 | 1981-07-24 | Skf Kugellagerfabriken Gmbh | CAGE FOR ROLLING BEARING IN ONE OR MORE PIECES, DESTINED IN PARTICULAR TO CYLINDRICAL ROLLER BEARINGS. |
AT376774B (en) * | 1982-12-16 | 1984-12-27 | Steyr Daimler Puch Ag | TWO-PIECE ROLLER BEARING CAGE, ESPECIALLY FOR HIGH SPEED |
DE3812345C2 (en) * | 1988-04-14 | 1996-07-11 | Skf Gmbh | Two-part or multi-part roller bearing cage |
-
2002
- 2002-05-27 JP JP2002152262A patent/JP4340419B2/en not_active Expired - Lifetime
-
2003
- 2003-05-27 DE DE10324103A patent/DE10324103B4/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7498650B2 (en) | 2020-11-26 | 2024-06-12 | 日置電機株式会社 | Measurement Systems and Instruments |
Also Published As
Publication number | Publication date |
---|---|
DE10324103A1 (en) | 2003-12-11 |
JP2003343571A (en) | 2003-12-03 |
DE10324103B4 (en) | 2012-05-10 |
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