JP3812702B2 - Manufacturing method of low friction sliding bearing - Google Patents

Manufacturing method of low friction sliding bearing Download PDF

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Publication number
JP3812702B2
JP3812702B2 JP10059398A JP10059398A JP3812702B2 JP 3812702 B2 JP3812702 B2 JP 3812702B2 JP 10059398 A JP10059398 A JP 10059398A JP 10059398 A JP10059398 A JP 10059398A JP 3812702 B2 JP3812702 B2 JP 3812702B2
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Japan
Prior art keywords
lining layer
bending
cutting
manufacturing
synthetic resin
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JPH11277168A (en
Inventor
元司 林
寛 伊藤
正春 菊地
泰典 壁谷
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Taiho Kogyo Co Ltd
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Taiho Kogyo Co Ltd
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    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/203—Multilayer structures, e.g. sleeves comprising a plastic lining
    • F16C33/206—Multilayer structures, e.g. sleeves comprising a plastic lining with three layers
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/208—Methods of manufacture, e.g. shaping, applying coatings

Description

【０００１】
【産業上の利用分野】
本発明は裏金とこれに一体に設けられるライニング層とを備える低摩擦すべり軸受の製造方法に関する。
【０００２】
【従来の技術】
従来、低摩擦すべり軸受の製造方法として、裏金とこの裏金上に一体に設けられたライニング層とを備えた板状素材を圧延するスキンパス工程と、このスキンパス工程後に板状素材を筒状に湾曲する曲げ工程と、この曲げ工程後にライニング層の内周面を切削して仕上げる切削工程とを行なっている。
【０００３】
【発明が解決しようとする課題】
しかしながら、最後にライニング層の内周面（表面）を切削して平滑に仕上げても、スキンパス工程時および曲げ工程時に加わった応力が経時変化または熱的変化により解放されて内周面に凹凸が生じることが判明した。このような凹凸が生じると駆動軸の安定した作動が阻害されるようになる。
すなわち、ライニング層は裏金上に焼結される金属等の粒子とこの粒子上に含浸される合成樹脂とで構成されているが、合成樹脂の肉厚は粒子上の部分と粒子間の部分では異なっているため、このように肉厚の異なる部分ではスキンパス工程時または曲げ工程時に加わる応力は異なるようになる。
その結果、経時変化または熱的変化により合成樹脂に残留した応力が解放されると、各部分ごとに残留する応力が異なっているため内周面に凹凸が生じてしまう。
本発明はそのような事情に鑑み、従来の製造方法に比較してすべり軸受の内周面を平滑に維持することができる製造方法を提供するものである。
【０００４】
【課題を解決するための手段】
すなわち請求項１では、裏金とこの裏金上に一体に設けられたライニング層を備える板状素材を圧延するスキンパス工程と、このスキンパス工程後にライニング層の表面を切削して仕上げる切削工程とを備えた低摩擦すべり軸受の製造方法において、
上記ライニング層は、裏金上に焼結される粒子とこの粒子間に含浸される合成樹脂とを備えていて、合成樹脂の肉厚は粒子上の部分と粒子間の部分で異なっており、上記スキンパス工程と切削工程との間に、スキンパス工程時にライニング層に加わった応力を解放するアニール工程を設け、このアニール工程によりライニング層に加わった応力が解放されてから上記切削工程を行なうようにしたものである。
また請求項２では、裏金とこの裏金上に一体に設けられたライニング層を備える板状素材を湾曲する曲げ工程と、この曲げ工程後にライニング層の表面を切削して仕上げる切削工程とを備えた低摩擦すべり軸受の製造方法において、
上記ライニング層は、裏金上に焼結される粒子とこの粒子間に含浸される合成樹脂とを備えていて、合成樹脂の肉厚は粒子上の部分と粒子間の部分で異なっており、上記曲げ工程と切削工程との間に、曲げ工程時にライニング層に加わった応力を解放するアニール工程を設け、このアニール工程によりライニング層に加わった応力が解放されてから上記切削工程を行なうようにしたものである。
さらに請求項３では、裏金とこの裏金上に一体に設けられたライニング層を備える板状素材を圧延するスキンパス工程と、このスキンパス工程後に板状素材を湾曲する曲げ工程と、この曲げ工程後にライニング層の表面を切削する切削工程とを備えた低摩擦すべり軸受の製造方法において、
上記ライニング層は、裏金上に焼結される粒子とこの粒子間に含浸される合成樹脂とを備えていて、合成樹脂の肉厚は粒子上の部分と粒子間の部分で異なっており、上記曲げ工程と切削工程との間に、スキンパス工程時および曲げ工程時にライニング層に加わった応力を解放するアニール工程を設け、このアニール工程によりライニング層に加わった応力が解放されてから上記切削工程を行なうようにしたものである。
【０００５】
【作用】
上述した請求項１ないし請求項３の製造方法によれば、いずれもスキンパス工程時または曲げ工程時にライニング層に加わった応力を解放するアニール工程を設け、このアニール工程によりライニング層に加わった応力が解放されてから切削工程を行なうようにしているので、切削工程後にライニング層の表面に凹凸が生じることはない。
その結果、ライニング層の表面を平滑に維持することができるので、従来の製造方法に比較して駆動軸の安定した作動を保証することができる。
【０００６】
【実施例】
以下図示実施例について本発明を説明すると、図１において、低摩擦すべり軸受を製造するための板状素材１は、鋼板からなる裏金２と、この裏金２の表面に鉛青銅粉末３を焼結し、そこに固体潤滑剤としてグラファイトを配合した耐熱性合成樹脂４を含浸させてなるライニング層５とを備えている。
上記鉛青銅粉末３は、単なる銅粉末であってもよく、また焼結は単層焼結でも多層焼結であってもよい。さらに耐熱性合成樹脂４としては各種の合成樹脂を用いることができ、フッ素、ＭｏＳ2 等の固体潤滑剤、エコノール等の樹脂副成物、球状カーボン、アルミナ、シリカ、クレー等の添加剤といった各種配合剤を必要に応じて配合するとよい。
【０００７】
次に、上述した板状素材１から低摩擦すべり軸受を製造する製造方法について図２に基づいて説明する。
本実施例では、図３に示すようにコンプレッサ７の駆動源８と圧縮機構９を連結する駆動軸１０を軸支する筒状の低摩擦すべり軸受１２を製造する製造方法である。このようなコンプレッサ７に用いられる円筒状すべり軸受１２は、駆動軸１０の安定した作動を保証するために内周面を平滑に形成するとともに、内径を高精度に仕上げる必要がある。
なお上記コンプレッサ７の構成については特開平３−３９８８号公報に開示されているので、ここでの詳細な説明は省略する。
上記円筒状すべり軸受１２を製造する製造方法では、先ずスキンパス工程によって上記板状素材１をローラによって圧縮して所定の厚さに引き延ばす。
このように板状素材１を引き延ばしたら、該板状素材１を所要の幅と長さとに切断して曲げ工程に移行する。この曲げ工程では従来周知のプレス機等によって板状素材片を湾曲しており、これにより板状素材片はライニング層５を内側として湾曲されてその両端部が相互に突合されて円筒状に成形される。
ところで、従来の製造方法では円筒状すべり軸受１２を筒状に成形したら、その後速やかにフレーム１３に組み付け、この状態で切削工程を行なってライニング層５の表面、すなわち耐熱性合成樹脂４の内周面を切削して平滑にするとともに、所定の内径寸法に仕上げるようにしていた。
【０００８】
しかしながら、そのような従来の製造方法では切削工程を行なってからしばらくはライニング層５の内周面は平滑に保たれているが、やがて経時変化によりライニング層５の内周面に微細な凹凸が生じたり、または作動時に発生する熱により凹凸が生じることが判明した。このような凹凸がライニング層５の内周面にあると、駆動軸の安定した作動が阻害されるようになる。
すなわち、図１に示したように耐熱性合成樹脂４の肉厚は鉛青銅粉末３上の部分と鉛青銅粉末３の間の部分とでは肉厚が異なっているため、鉛青銅粉末３上の薄肉な部分と鉛青銅粉末３間の厚肉な部分ではスキンパス工程時または曲げ工程時に加わる応力は異なるようになる。
その結果、耐熱性合成樹脂４に残留する応力が経時変化または熱的変化により解放されると、各部分ごとに残留する応力が異なっているため内周面に凹凸が生じるようになる。
したがって、本実施例では従来に比較して駆動軸１０の安定した作動を保証するために、上記切削工程を耐熱性合成樹脂４に残留する応力が解放されてから行なうようにしたものである。
また本実施例では、より確実に耐熱性合成樹脂４の内周面の凹凸を防止するために切削工程の前にアニール工程を加えている。
このアニール工程では、例えばすべり軸受を１８０℃〜３００℃で、０．５〜１２時間の焼鈍を行なっており、このようにアニールを施すことによって耐熱性合成樹脂４に残留する応力の積極的な解放を図ったものである。
【０００９】
したがって上述した製造方法によれば、切削工程を、耐熱性合成樹脂４に残留する応力を解放させてから行なうようにしているので、円筒すべり軸受１２の内面に凹凸が生じるのを防止することができる。
そしてまた、切削工程の前にアニール工程を設けているので、この工程によってより確実に内周面に凹凸が発生するのを防止することができる。
【００１０】
なお上記実施例では、スキンパス工程と曲げ工程を行なっているがこれに限定されるものではなく、スキンパス工程の省略された円筒すべり軸受の製造方法または曲げ工程の省略された平すべり軸受の製造方法であっても同様な効果を得ることができることは明らかである。
【００１１】
【発明の効果】
以上のように、本発明の製造方法によれば、ライニング層の応力を解放させてから切削を行なうとともに、アニールによってライニング層の応力をより確実に解放させているので、ライニング層の内周面を平滑に維持することができ、それによって従来の製造方法に比較して駆動軸の安定した作動を保証することができるという効果が得られる。
【図面の簡単な説明】
【図１】板状素材１の拡大断面図。
【図２】本発明の製造方法の一実施例を示す工程図。
【図３】本発明の円筒状すべり軸受１２を設けたコンプレッサ７の断面図。
【符号の説明】
１…板状素材 ２…裏金 ３…鉛青銅粉末
４…耐熱性合成樹脂 ５…ライニング層 ７…コンプレッサ
１０…駆動軸 １２…円筒状すべり軸受[0001]
[Industrial application fields]
The present invention relates to a method for manufacturing a low friction plain bearing including a back metal and a lining layer provided integrally therewith.
[0002]
[Prior art]
Conventionally, as a manufacturing method of a low friction plain bearing, a skin pass process of rolling a plate material provided with a back metal and a lining layer integrally provided on the back metal, and after the skin pass process, the plate material is bent into a cylindrical shape. And a cutting step of cutting and finishing the inner peripheral surface of the lining layer after the bending step.
[0003]
[Problems to be solved by the invention]
However, even if the inner peripheral surface (surface) of the lining layer is finally cut and finished smoothly, the stress applied during the skin pass process and the bending process is released due to aging or thermal change, and the inner peripheral surface is uneven. It was found to occur. When such unevenness occurs, the stable operation of the drive shaft is hindered.
That is, the lining layer is composed of particles of metal or the like that are sintered on the back metal and a synthetic resin impregnated on the particles, but the thickness of the synthetic resin is between the part on the particle and the part between the particles. Since they are different, the stress applied at the time of the skin pass process or the bending process is different in the portions having different thicknesses.
As a result, when the residual stress in the synthetic resin is released due to a change with time or a thermal change, the residual stress is different for each portion, so that the inner peripheral surface is uneven.
In view of such circumstances, the present invention provides a manufacturing method capable of maintaining a smooth inner peripheral surface of a slide bearing as compared with a conventional manufacturing method.
[0004]
[Means for Solving the Problems]
That is, in claim 1, a skin pass step of rolling a plate-shaped material provided with a back metal and a lining layer integrally provided on the back metal, and a cutting step of cutting and finishing the surface of the lining layer after the skin pass step are provided. In the manufacturing method of the low friction sliding bearing,
The lining layer includes particles sintered on the back metal and a synthetic resin impregnated between the particles, and the thickness of the synthetic resin is different between a part on the particle and a part between the particles, An annealing process is provided between the skin pass process and the cutting process to release the stress applied to the lining layer during the skin pass process, and the above cutting process is performed after the stress applied to the lining layer is released by this annealing process . Is.
According to a second aspect of the present invention, the method includes a bending step of bending a plate-shaped material provided with a backing metal and a lining layer integrally provided on the backing metal, and a cutting step of cutting and finishing the surface of the lining layer after the bending step. In the manufacturing method of the low friction sliding bearing,
The lining layer includes particles sintered on the back metal and a synthetic resin impregnated between the particles, and the thickness of the synthetic resin is different between a part on the particle and a part between the particles, An annealing process for releasing the stress applied to the lining layer during the bending process is provided between the bending process and the cutting process, and the above cutting process is performed after the stress applied to the lining layer is released by this annealing process . Is.
Further, in claim 3, a skin pass step of rolling a plate-like material having a backing metal and a lining layer integrally provided on the backing metal, a bending step of bending the plate-like material after the skin passing step, and a lining after the bending step In a manufacturing method of a low friction plain bearing comprising a cutting step of cutting the surface of the layer,
The lining layer includes particles sintered on the back metal and a synthetic resin impregnated between the particles, and the thickness of the synthetic resin is different between a part on the particle and a part between the particles, An annealing process is provided between the bending process and the cutting process to release the stress applied to the lining layer during the skin pass process and the bending process, and the cutting process is performed after the stress applied to the lining layer is released by this annealing process. It is what you do .
[0005]
[Action]
According to the manufacturing method of claims 1 to 3 described above, an annealing process for releasing stress applied to the lining layer at the time of the skin pass process or the bending process is provided, and the stress applied to the lining layer by this annealing process is reduced. Since the cutting process is performed after the release, the surface of the lining layer does not become uneven after the cutting process.
As a result, since the surface of the lining layer can be kept smooth, stable operation of the drive shaft can be ensured as compared with the conventional manufacturing method.
[0006]
【Example】
The present invention will be described below with reference to the illustrated embodiment. In FIG. 1, a plate-like material 1 for producing a low-friction sliding bearing includes a back metal 2 made of a steel plate, and lead bronze powder 3 sintered on the surface of the back metal 2. And a lining layer 5 impregnated with a heat resistant synthetic resin 4 blended with graphite as a solid lubricant.
The lead bronze powder 3 may be a mere copper powder, and the sintering may be single layer sintering or multilayer sintering. Further, as the heat-resistant synthetic resin 4, various synthetic resins can be used, and various kinds of additives such as solid lubricants such as fluorine and MoS 2 , resin by-products such as Econol, spherical carbon, alumina, silica, clay and the like. It is good to mix | blend a compounding agent as needed.
[0007]
Next, a manufacturing method for manufacturing a low-friction plain bearing from the plate-like material 1 described above will be described with reference to FIG.
In this embodiment, as shown in FIG. 3, a manufacturing method for manufacturing a cylindrical low friction sliding bearing 12 that supports a driving shaft 10 that connects a driving source 8 of a compressor 7 and a compression mechanism 9 is provided. The cylindrical slide bearing 12 used in such a compressor 7 needs to have a smooth inner peripheral surface and a highly accurate inner diameter to ensure stable operation of the drive shaft 10.
Since the configuration of the compressor 7 is disclosed in Japanese Patent Laid-Open No. 3-3988, a detailed description thereof is omitted here.
In the manufacturing method for manufacturing the cylindrical sliding bearing 12, the plate material 1 is first compressed by a roller and stretched to a predetermined thickness by a skin pass process.
When the plate-shaped material 1 is stretched in this way, the plate-shaped material 1 is cut into a required width and length and the process proceeds to a bending process. In this bending process, the plate-like material piece is bent by a conventionally known press machine or the like, whereby the plate-like material piece is bent with the lining layer 5 inside, and both ends thereof are butted together to form a cylindrical shape. Is done.
By the way, in the conventional manufacturing method, after the cylindrical slide bearing 12 is formed into a cylindrical shape, it is immediately assembled to the frame 13 and a cutting process is performed in this state to perform the cutting step, that is, the inner circumference of the heat resistant synthetic resin 4. The surface was smoothed by cutting and finished to a predetermined inner diameter.
[0008]
However, in such a conventional manufacturing method, the inner peripheral surface of the lining layer 5 is kept smooth for a while after the cutting process is performed, but fine irregularities are eventually formed on the inner peripheral surface of the lining layer 5 over time. It has been found that unevenness occurs due to heat generated or generated during operation. If such unevenness is present on the inner peripheral surface of the lining layer 5, the stable operation of the drive shaft is hindered.
That is, as shown in FIG. 1, since the thickness of the heat-resistant synthetic resin 4 is different between the portion on the lead bronze powder 3 and the portion between the lead bronze powder 3, the thickness on the lead bronze powder 3 The stress applied during the skin pass process or the bending process differs between the thin part and the thick part between the lead bronze powder 3.
As a result, when the stress remaining in the heat-resistant synthetic resin 4 is released due to aging or thermal change, unevenness is generated on the inner peripheral surface because the residual stress is different for each portion.
Therefore, in this embodiment, in order to guarantee a stable operation of the drive shaft 10 as compared with the prior art, the cutting process is performed after the stress remaining in the heat resistant synthetic resin 4 is released.
Further, in this embodiment, an annealing process is added before the cutting process in order to more surely prevent unevenness of the inner peripheral surface of the heat resistant synthetic resin 4.
In this annealing step, for example, the plain bearing is annealed at 180 ° C. to 300 ° C. for 0.5 to 12 hours, and the stress remaining in the heat resistant synthetic resin 4 is positively affected by annealing as described above. It is intended for liberation.
[0009]
Therefore, according to the manufacturing method described above, the cutting process is performed after releasing the stress remaining in the heat-resistant synthetic resin 4, so that it is possible to prevent unevenness on the inner surface of the cylindrical slide bearing 12. it can.
In addition, since the annealing process is provided before the cutting process, it is possible to more reliably prevent the unevenness from being generated on the inner peripheral surface by this process.
[0010]
In the above embodiment, the skin pass process and the bending process are performed. However, the present invention is not limited to this. The manufacturing method of the cylindrical plain bearing without the skin pass process or the manufacturing method of the flat plain bearing with the bending process omitted. However, it is clear that the same effect can be obtained.
[0011]
【The invention's effect】
As described above, according to the manufacturing method of the present invention, cutting is performed after releasing the stress of the lining layer, and the stress of the lining layer is more reliably released by annealing, so the inner peripheral surface of the lining layer Can be maintained in a smooth manner, whereby the stable operation of the drive shaft can be ensured as compared with the conventional manufacturing method.
[Brief description of the drawings]
FIG. 1 is an enlarged cross-sectional view of a plate material 1;
FIG. 2 is a process diagram showing one embodiment of the production method of the present invention.
FIG. 3 is a cross-sectional view of a compressor 7 provided with a cylindrical slide bearing 12 of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Plate-shaped material 2 ... Back metal 3 ... Lead bronze powder 4 ... Heat-resistant synthetic resin 5 ... Lining layer 7 ... Compressor 10 ... Drive shaft 12 ... Cylindrical slide bearing

Claims (4)

裏金とこの裏金上に一体に設けられたライニング層を備えた板状素材を圧延するスキンパス工程と、このスキンパス工程後にライニング層の表面を切削して仕上げる切削工程とを備えた低摩擦すべり軸受の製造方法において、
上記ライニング層は、裏金上に焼結される粒子とこの粒子間に含浸される合成樹脂とを備えていて、合成樹脂の肉厚は粒子上の部分と粒子間の部分で異なっており、上記スキンパス工程と切削工程との間に、スキンパス工程時にライニング層に加わった応力を解放するアニール工程を設け、このアニール工程によりライニング層に加わった応力が解放されてから上記切削工程を行なうようにしたことを特徴とする低摩擦すべり軸受の製造方法。A low-friction plain bearing comprising a skin pass process for rolling a plate material having a backing metal and a lining layer integrally provided on the backing metal, and a cutting process for cutting and finishing the surface of the lining layer after the skin passing process. In the manufacturing method,
The lining layer includes particles sintered on the back metal and a synthetic resin impregnated between the particles, and the thickness of the synthetic resin is different between a part on the particle and a part between the particles, An annealing process is provided between the skin pass process and the cutting process to release the stress applied to the lining layer during the skin pass process, and the above cutting process is performed after the stress applied to the lining layer is released by this annealing process . A method for producing a low-friction plain bearing characterized by the above. 裏金とこの裏金上に一体に設けられたライニング層を備えた板状素材を湾曲する曲げ工程と、この曲げ工程後にライニング層の表面を切削して仕上げる切削工程とを備えた低摩擦すべり軸受の製造方法において、
上記ライニング層は、裏金上に焼結される粒子とこの粒子間に含浸される合成樹脂とを備えていて、合成樹脂の肉厚は粒子上の部分と粒子間の部分で異なっており、上記曲げ工程と切削工程との間に、曲げ工程時にライニング層に加わった応力を解放するアニール工程を設け、このアニール工程によりライニング層に加わった応力が解放されてから上記切削工程を行なうようにしたことを特徴とする低摩擦すべり軸受の製造方法。A low friction sliding bearing having a bending process of bending a plate-like material having a backing metal and a lining layer integrally provided on the backing metal, and a cutting process of cutting and finishing the surface of the lining layer after the bending process. In the manufacturing method,
The lining layer includes particles sintered on the back metal and a synthetic resin impregnated between the particles, and the thickness of the synthetic resin is different between a part on the particle and a part between the particles, An annealing process for releasing the stress applied to the lining layer during the bending process is provided between the bending process and the cutting process, and the above cutting process is performed after the stress applied to the lining layer is released by this annealing process . A method for producing a low-friction plain bearing characterized by the above. 裏金とこの裏金上に一体に設けられたライニング層を備えた板状素材を圧延するスキンパス工程と、このスキンパス工程後に板状素材を湾曲する曲げ工程と、この曲げ工程後にライニング層の表面を切削する切削工程とを備えた低摩擦すべり軸受の製造方法において、
上記ライニング層は、裏金上に焼結される粒子とこの粒子間に含浸される合成樹脂とを備えていて、合成樹脂の肉厚は粒子上の部分と粒子間の部分で異なっており、上記曲げ工程と切削工程との間に、スキンパス工程時および曲げ工程時にライニング層に加わった応力を解放するアニール工程を設け、このアニール工程によりライニング層に加わった応力が解放されてから上記切削工程を行なうようにしたことを特徴とする低摩擦すべり軸受の製造方法。A skin pass process for rolling a sheet material provided with a backing metal and a lining layer integrally provided on the backing metal, a bending process for bending the sheet material after the skin passing process, and the surface of the lining layer is cut after the bending process. In a manufacturing method of a low friction plain bearing provided with a cutting process to
The lining layer includes particles sintered on the back metal and a synthetic resin impregnated between the particles, and the thickness of the synthetic resin is different between a part on the particle and a part between the particles, An annealing process is provided between the bending process and the cutting process to release the stress applied to the lining layer during the skin pass process and the bending process, and the cutting process is performed after the stress applied to the lining layer is released by this annealing process. A method of manufacturing a low friction plain bearing, characterized in that it is performed. 上記曲げ工程では、板状素材を筒状に湾曲させてコンプレッサ用の軸受を製造することを特徴とする請求項２又は請求項３に記載の低摩擦すべり軸受の製造方法。 4. The method for manufacturing a low-friction sliding bearing according to claim 2 , wherein in the bending step, the plate-shaped material is bent into a cylindrical shape to manufacture a compressor bearing.
JP10059398A 1998-03-27 1998-03-27 Manufacturing method of low friction sliding bearing Expired - Lifetime JP3812702B2 (en)

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