JPH04333521A - Production of bearing ring - Google Patents
Production of bearing ringInfo
- Publication number
- JPH04333521A JPH04333521A JP10550991A JP10550991A JPH04333521A JP H04333521 A JPH04333521 A JP H04333521A JP 10550991 A JP10550991 A JP 10550991A JP 10550991 A JP10550991 A JP 10550991A JP H04333521 A JPH04333521 A JP H04333521A
- Authority
- JP
- Japan
- Prior art keywords
- shot peening
- polishing
- stock
- stage
- residual stress
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 238000005480 shot peening Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000005496 tempering Methods 0.000 claims abstract description 10
- 238000005498 polishing Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 23
- 238000010791 quenching Methods 0.000 claims description 8
- 230000000171 quenching effect Effects 0.000 claims description 4
- 238000007517 polishing process Methods 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 abstract description 9
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007518 final polishing process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical group [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
- Heat Treatment Of Articles (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、軸受軌道輪の製造方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a bearing race.
【０００２】0002
【従来の技術および発明の課題】鋼製の機械部品の表面
に圧縮残留応力を付加し、疲労強度を高める方法として
、ショットピーニング法が知られており、歯車などにつ
いては広く実用化されている。[Prior Art and Problems of the Invention] Shot peening is a known method for increasing fatigue strength by adding compressive residual stress to the surface of steel mechanical parts, and has been widely put into practical use for gears, etc. .
【０００３】転がり軸受の軌道輪についても、ショット
ピーニングによる厳しい運転環境への適用、長寿命など
が期待されるが、転がり軸受の軌道輪の場合、寸法精度
、表面粗さなどに対する要求が厳しいために、ショット
ピーニングを施したままでは使用することができず、ま
た、仕上のために研磨を行なうと有用な圧縮残留応力層
が除去されてしまう。さらに詳しく説明すると、軸受の
軌道輪素材は焼入れ硬化されるが、この硬化で歪を生じ
るなどするために寸法精度が悪化し、通常は、熱処理後
に半径で０．２ｍｍ程度の仕上研磨を行なう必要がある
。一方、通常、ショットピーニングは熱処理後に実施す
るため、このような大きな取代の研磨を行なうと、ショ
ットピーニングにより形成された圧縮残留応力層がほと
んど除去されてしまう。また、ショットピーニングを仕
上研磨後に行なうと、寸法精度、表面粗さなどが悪化す
るために、軸受軌道輪としては使用できなくなる。[0003] Rolling bearing rings are also expected to be suitable for harsh operating environments and have a long life due to shot peening, but rolling bearing rings have strict requirements for dimensional accuracy, surface roughness, etc. In addition, shot peening cannot be used as is, and polishing for finishing removes the useful compressive residual stress layer. To explain in more detail, the bearing ring material is hardened by quenching, but this hardening causes distortion, which deteriorates dimensional accuracy, and it is usually necessary to perform final polishing to a radius of about 0.2 mm after heat treatment. There is. On the other hand, since shot peening is usually performed after heat treatment, if polishing with such a large machining allowance is performed, most of the compressive residual stress layer formed by shot peening will be removed. Furthermore, if shot peening is performed after final polishing, dimensional accuracy, surface roughness, etc. will deteriorate, making it impossible to use the product as a bearing raceway.
【０００４】また、ショットピーニングによる圧縮残留
応力層は不安定であり、期待する性能が得られない危険
性がある。[0004] Furthermore, the compressive residual stress layer formed by shot peening is unstable, and there is a risk that the expected performance may not be obtained.
【０００５】この発明の目的は、上記の問題を解決し、
寸法精度、表面粗さを悪化させずに疲労寿命、対摩耗性
を向上できる軸受軌道輪の製造方法を提供することにあ
る。[0005] The purpose of the present invention is to solve the above problems,
It is an object of the present invention to provide a method for manufacturing a bearing raceway ring that can improve fatigue life and wear resistance without deteriorating dimensional accuracy and surface roughness.
【０００６】[0006]
【課題を解決するための手段】この発明による軸受軌道
輪の製造方法は、軸受軌道輪素材を焼入れ硬化する焼入
れ硬化工程、上記素材を所定の仕上代を残して研磨する
粗研磨工程、上記素材にショットピーニングを施すショ
ットピーニング工程、上記素材を焼戻しする焼戻し工程
、および上記素材の上記仕上代を研磨する仕上研磨工程
を含むことを特徴とするものである。[Means for Solving the Problems] A method for manufacturing a bearing raceway according to the present invention includes a quenching and hardening step of quenching and hardening a bearing raceway material, a rough polishing step of polishing the material leaving a predetermined finishing allowance, and a rough polishing step of polishing the material leaving a predetermined finishing allowance. The method is characterized by comprising a shot peening step of subjecting the material to shot peening, a tempering step of tempering the material, and a final polishing step of polishing the finishing allowance of the material.
【０００７】[0007]
【作用】ショットピーニング工程の前に、仕上代を残し
て粗研磨加工を行なうので、ショットピーニング後の表
面粗さ、寸法精度の悪化が少なくなり、小さな仕上代で
仕上研磨加工を行なうことによって十分な表面粗さと寸
法精度が得られる。そして、仕上代を小さくすることが
できるので、仕上研磨加工後にも十分な圧縮残留応力層
が得られる。また、ショットピーニング工程後の焼戻し
により、圧縮残留応力層が安定化される。その結果、疲
労寿命、耐摩耗性が向上する。[Effect] Before the shot peening process, rough polishing is performed leaving a finishing allowance, so there is less deterioration of surface roughness and dimensional accuracy after shot peening, and finishing polishing with a small finishing allowance is sufficient. Achieving excellent surface roughness and dimensional accuracy. Furthermore, since the finishing allowance can be reduced, a sufficient compressive residual stress layer can be obtained even after the final polishing process. Furthermore, the compressive residual stress layer is stabilized by tempering after the shot peening process. As a result, fatigue life and wear resistance are improved.
【０００８】[0008]
【実施例】以下、図面を参照して、この発明の実施例に
ついて説明する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
【０００９】図１は、軸受軌道輪の製造方法の１例を示
す工程図である。FIG. 1 is a process diagram showing one example of a method for manufacturing a bearing race.
【００１０】基本番号６２０６の単列深みぞ玉軸受の内
輪（内径３０ｍｍ）を例にとり、図１の工程図を参照し
て、この発明による製造方法の１例を説明する。Taking as an example the inner ring (inner diameter 30 mm) of a single-row deep groove ball bearing with basic number 6206, an example of the manufacturing method according to the present invention will be explained with reference to the process diagram of FIG.
【００１１】まず、通常の鍛造および旋削加工などによ
り、内輪素材を作る（工程１）。[0011] First, an inner ring material is made by ordinary forging, turning, etc. (step 1).
【００１２】次に、この素材を通常の条件で焼入れ硬化
する焼入れ硬化工程（工程２）を行なう。Next, a quench hardening process (step 2) is performed in which this material is quenched and hardened under normal conditions.
【００１３】次に、この素材を所定の仕上代（たとえば
半径で０．０５ｍｍ）を残して研磨する粗研磨工程（工
程３）を行なう。なお、このときの取代は、たとえば半
径で０．２ｍｍ程度である。Next, a rough polishing step (step 3) is performed in which this material is polished leaving a predetermined finishing allowance (for example, 0.05 mm in radius). Note that the machining allowance at this time is, for example, about 0.2 mm in radius.
【００１４】次に、この素材に通常の条件でショットピ
ーニングを施すショットピーニング工程（工程４）を行
なう。Next, a shot peening process (step 4) is performed in which this material is subjected to shot peening under normal conditions.
【００１５】次に、この素材を通常の条件で焼戻しする
焼戻し工程（工程５）を行なう。Next, a tempering step (step 5) is performed in which this material is tempered under normal conditions.
【００１６】そして、最後に、この素材の仕上代を研磨
する仕上研磨工程（工程６）を行なう。Finally, a final polishing step (step 6) is performed to polish the finishing margin of this material.
【００１７】ショットピーニング工程の前に、仕上代を
残して粗研磨加工を行なうので、ショットピーニング後
の表面粗さ、寸法精度の悪化が少なくなり、小さな仕上
代で仕上研磨加工を行なうことによって十分な表面粗さ
と寸法精度が得られる。そして、仕上代を小さくするこ
とができるので、仕上研磨加工後にも十分な圧縮残留応
力層が得られる。また、ショットピーニング工程後の焼
戻しにより、圧縮残留応力層が安定化される。その結果
、疲労寿命、耐摩耗性が向上する。[0017] Before the shot peening process, rough polishing is performed with a finishing allowance left, so there is less deterioration of surface roughness and dimensional accuracy after shot peening, and finishing polishing with a small finishing allowance is sufficient. Achieving excellent surface roughness and dimensional accuracy. Furthermore, since the finishing allowance can be reduced, a sufficient compressive residual stress layer can be obtained even after the final polishing process. Furthermore, the compressive residual stress layer is stabilized by tempering after the shot peening process. As a result, fatigue life and wear resistance are improved.
【００１８】図２はＪＩＳ高炭素クロム軸受鋼ＳＵＪ２
製の基本番号６２０６の内輪素材について工程４のショ
ットピーニングを行なったのちの素材の表面からの深さ
（ｍｍ）に対する圧縮残留応力値（ｋｇｆ／ｍｍ２ ）
の測定結果を示し、図３は工程４のショットピーニング
、工程５の焼戻し後に工程６の仕上研磨を行なったのち
の同様の圧縮残留応力値の測定結果を示している。これ
らの結果より、仕上研磨を行なっても有用な圧縮残留応
力層が残っていることがわかる。FIG. 2 shows JIS high carbon chromium bearing steel SUJ2.
Compressive residual stress value (kgf/mm2) against depth (mm) from the surface of the material after shot peening in step 4 for the inner ring material with basic number 6206 made by Manufacturer Co., Ltd.
FIG. 3 shows the measurement results of similar compressive residual stress values after shot peening in step 4, tempering in step 5, and final polishing in step 6. These results show that a useful compressive residual stress layer remains even after final polishing.
【００１９】上記のようにして製造したこの発明による
内輪と、同じＳＵＪ２製の通常の内輪とについて、比較
試験を行なったところ、この発明による内輪は、通常の
内輪に比べて、寿命比が３倍、表面の耐摩耗性が１．４
倍になった。A comparative test was conducted on the inner ring according to the present invention manufactured as described above and a normal inner ring made of the same SUJ2, and it was found that the inner ring according to the present invention had a life ratio of 3 compared to the normal inner ring. times, surface wear resistance is 1.4
It's doubled.
【００２０】図４は、同じ素材について工程２の焼入れ
硬化を行なったのちに粗仕上研磨を行なわずにショット
ピーニングを行ない、さらに半径で０．２ｍｍの取代で
仕上研磨を行なったときの同様の圧縮残留応力の測定結
果を示している。FIG. 4 shows a similar case where the same material was quenched and hardened in step 2, shot peened without rough finish polishing, and then finished polished with a radius of 0.2 mm machining allowance. It shows the measurement results of compressive residual stress.
【００２１】鍛造、旋削加工後に焼入れ硬化した素材に
ショットピーニングを施すと、熱処理およびショットピ
ーニングにより歪が大きくなるため、仕上研磨のために
半径で０．２ｍｍ程度の取代が必要になる。このため、
仕上研磨を行なうと、図４からも明らかなように、ショ
ットピーニングにより形成された有用な圧縮残留応力層
がほとんど除去されてしまい、ショットピーニングの効
果がなくなってしまう。When shot peening is applied to a material that has been quenched and hardened after forging or turning, the heat treatment and shot peening increase distortion, so a machining allowance of approximately 0.2 mm in radius is required for final polishing. For this reason,
When final polishing is performed, as is clear from FIG. 4, most of the useful compressive residual stress layer formed by shot peening is removed, and the effect of shot peening is lost.
【００２２】[0022]
【発明の効果】この発明の軸受軌道輪の製造方法によれ
ば、上述のように、ショットピーニング工程の前に、仕
上代を残して粗研磨加工を行なうので、表面粗さ、寸法
精度を悪化させずに、仕上研磨加工後にも十分な圧縮残
留応力層をが得ることができ、また、ショットピーニン
グ工程後に焼戻しを行なうので、圧縮残留応力層が安定
化され、その結果、疲労寿命、耐摩耗性が向上する。[Effects of the Invention] According to the method for manufacturing a bearing race of the present invention, as described above, before the shot peening process, rough polishing is performed leaving a finishing allowance, so surface roughness and dimensional accuracy are deteriorated. It is possible to obtain a sufficient compressive residual stress layer even after the final polishing process, without causing any Improves sex.
【図１】この発明の軸受軌道輪の製造方法の１例を示す
工程図である。FIG. 1 is a process diagram showing one example of a method for manufacturing a bearing race of the present invention.
【図２】この発明の方法においてショットピーニング工
程を行なったのちの素材の表面からの深さに対する圧縮
残留応力値の測定結果を示すグラフである。FIG. 2 is a graph showing the measurement results of the compressive residual stress value versus the depth from the surface of the material after performing the shot peening process in the method of the present invention.
【図３】この発明の方法において仕上研磨工程を行なっ
たのちの軸受軌道輪の表面からの深さに対する圧縮残留
応力値の測定結果を示すグラフである。FIG. 3 is a graph showing the measurement results of the compressive residual stress value with respect to the depth from the surface of the bearing race after the final polishing step is performed in the method of the present invention.
【図４】焼入れ硬化を行なったのちに粗仕上研磨を行な
わずにショットピーニングを行ない、さらに仕上研磨を
行なったときの軸受軌道輪の表面からの深さに対する圧
縮残留応力の測定結果を示すグラフである。[Fig. 4] Graph showing measurement results of compressive residual stress versus depth from the surface of the bearing raceway when shot peening is performed without rough finish polishing after quench hardening, and then final polishing is performed. It is.
（２） 焼入れ硬化工程（３）
粗仕上研磨工程（４）
ショットピーニング工程（５） 焼戻
し工程(2) Quench hardening process (3)
Rough finish polishing process (4)
Shot peening process (5) Tempering process
Claims (1)
化工程、上記素材を所定の仕上代を残して研磨する粗研
磨工程、上記素材にショットピーニングを施すショット
ピーニング工程、上記素材を焼戻しする焼戻し工程、お
よび上記素材の上記仕上代を研磨する仕上研磨工程を含
むことを特徴とする軸受軌道輪の製造方法。1. A quench hardening process for quenching and hardening a bearing ring material, a rough polishing process for polishing the material leaving a predetermined finishing allowance, a shot peening process for subjecting the material to shot peening, and a tempering process for tempering the material. and a final polishing step of polishing the finishing allowance of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10550991A JP3170615B2 (en) | 1991-05-10 | 1991-05-10 | Manufacturing method of rolling bearing race |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10550991A JP3170615B2 (en) | 1991-05-10 | 1991-05-10 | Manufacturing method of rolling bearing race |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04333521A true JPH04333521A (en) | 1992-11-20 |
| JP3170615B2 JP3170615B2 (en) | 2001-05-28 |
Family
ID=14409573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10550991A Expired - Fee Related JP3170615B2 (en) | 1991-05-10 | 1991-05-10 | Manufacturing method of rolling bearing race |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3170615B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5520987A (en) * | 1993-07-23 | 1996-05-28 | Nsk, Ltd. | Rolling/sliding member |
| US5603576A (en) * | 1993-03-08 | 1997-02-18 | Nsk, Ltd. | Method for manufacturing balls for bearing and products thereby |
| JP2006029500A (en) * | 2004-07-20 | 2006-02-02 | Ntn Corp | Sealed rolling bearing |
| JP2011510238A (en) * | 2008-01-15 | 2011-03-31 | アクティエボラゲット・エスコーエッフ | Simplified rotary bearing unit and method of manufacturing such a bearing unit |
| US8955629B2 (en) | 2011-11-16 | 2015-02-17 | Honda Motor Co., Ltd. | Radiator structure for saddle-ride type vehicle |
| GB2521220A (en) * | 2013-12-16 | 2015-06-17 | Skf Ab | Process for treating steel components |
| CN113560814A (en) * | 2021-04-26 | 2021-10-29 | 徐州新大隆化工泵业制造有限公司 | Processing technology of high-strength plunger pump check valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100504093C (en) * | 2008-04-05 | 2009-06-24 | 余姚市曙光不锈钢轴承有限公司 | Mirror face stainless steel bearing manufacture process |
| JP6075492B1 (en) * | 2016-04-04 | 2017-02-08 | 裕志 杉江 | A tissue box that can be connected to the top and bottom and can be capped when separated |
-
1991
- 1991-05-10 JP JP10550991A patent/JP3170615B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5603576A (en) * | 1993-03-08 | 1997-02-18 | Nsk, Ltd. | Method for manufacturing balls for bearing and products thereby |
| US6119347A (en) * | 1993-03-08 | 2000-09-19 | Nsk, Ltd. | Method for manufacturing balls for bearing and products thereby |
| US5520987A (en) * | 1993-07-23 | 1996-05-28 | Nsk, Ltd. | Rolling/sliding member |
| JP2006029500A (en) * | 2004-07-20 | 2006-02-02 | Ntn Corp | Sealed rolling bearing |
| JP4603304B2 (en) * | 2004-07-20 | 2010-12-22 | Ｎｔｎ株式会社 | Sealed rolling bearing |
| US8857062B2 (en) | 2004-07-20 | 2014-10-14 | Ntn Corporation | Sealed rolling bearing |
| JP2011510238A (en) * | 2008-01-15 | 2011-03-31 | アクティエボラゲット・エスコーエッフ | Simplified rotary bearing unit and method of manufacturing such a bearing unit |
| US8510954B2 (en) | 2008-01-15 | 2013-08-20 | Aktiebolaget Skf | Simplified rolling bearing unit and a method for manufacturing such a bearing unit |
| US8955629B2 (en) | 2011-11-16 | 2015-02-17 | Honda Motor Co., Ltd. | Radiator structure for saddle-ride type vehicle |
| GB2521220A (en) * | 2013-12-16 | 2015-06-17 | Skf Ab | Process for treating steel components |
| CN113560814A (en) * | 2021-04-26 | 2021-10-29 | 徐州新大隆化工泵业制造有限公司 | Processing technology of high-strength plunger pump check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3170615B2 (en) | 2001-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6325867B1 (en) | Rolling bearing and heat treatment method therefor | |
| JP5121168B2 (en) | Rolling member manufacturing method and rolling bearing manufacturing method | |
| KR20050004843A (en) | Method of producing bearing raceway member | |
| JP3321228B2 (en) | Method of manufacturing raceway for rolling bearing | |
| US3737204A (en) | Extended life bearing | |
| JP2006200627A (en) | Rolling bearing component and its manufacturing method, and rolling bearing | |
| JPH04333521A (en) | Production of bearing ring | |
| JP3975314B2 (en) | Bearing part material and rolling bearing raceway manufacturing method | |
| JP3665876B2 (en) | Manufacturing method of bearing parts | |
| JP3486753B2 (en) | Manufacturing method of bearing parts | |
| JP2009203526A (en) | Rolling bearing | |
| JP3752577B2 (en) | Manufacturing method of machine parts | |
| JP4186568B2 (en) | Rolling bearing and method for manufacturing inner ring of rolling bearing | |
| JP2007186760A (en) | Manufacturing method of bearing ring for rolling bearing, and rolling bearing | |
| KR102484456B1 (en) | A cage for a constant velocity joint | |
| JP2007239837A (en) | Tripod type constant velocity universal joint and its manufacturing method | |
| KR100727196B1 (en) | A constant velocity joint cage for vehicle and method for producing it | |
| JP2006291239A (en) | Method for producing high-carbon chromium bearing steel-forged rough-shaped material for inner and outer rings of general purpose small type bearing | |
| JP2003329048A (en) | Manufacturing method for bearing raceway member | |
| JP2007182603A (en) | Method for manufacturing rolling member, rolling member and rolling bearing | |
| JP2000234658A (en) | Power roller for toroidal continuously variable transmission and manufacture therefor | |
| JP7363663B2 (en) | Rolling bearing and its manufacturing method | |
| JPH05118336A (en) | Rolling bearing | |
| JP3303171B2 (en) | Manufacturing method of steel for bearing race | |
| JPH11347673A (en) | Roller bearing, and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010123 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090323 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090323 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100323 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110323 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |