JPH03215696A - Sliding member - Google Patents

Sliding member

Info

Publication number
JPH03215696A
JPH03215696A JP1012190A JP1012190A JPH03215696A JP H03215696 A JPH03215696 A JP H03215696A JP 1012190 A JP1012190 A JP 1012190A JP 1012190 A JP1012190 A JP 1012190A JP H03215696 A JPH03215696 A JP H03215696A
Authority
JP
Japan
Prior art keywords
surface layer
alloy
sliding
pyramid
plane
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
Application number
JP1012190A
Other languages
Japanese (ja)
Other versions
JPH079079B2 (en
Inventor
Yoshikazu Fujisawa
義和 藤沢
Takeshi Narushige
成重 丈志
Yuzuru Miyazaki
譲 宮崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2010121A priority Critical patent/JPH079079B2/en
Priority to DE4101386A priority patent/DE4101386C2/en
Priority to CA002034568A priority patent/CA2034568C/en
Priority to GB9101144A priority patent/GB2240343B/en
Publication of JPH03215696A publication Critical patent/JPH03215696A/en
Priority to US07/989,733 priority patent/US5310606A/en
Priority to US08/240,018 priority patent/US5468567A/en
Publication of JPH079079B2 publication Critical patent/JPH079079B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Electroplating And Plating Baths Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 A.発明の目的 (1)産業上の利用分野 本発明は摺動部材、特に、相手部材との摺動面側に、P
b合金からなる表面層を備えた摺動部材に関する。
[Detailed Description of the Invention] A. Purpose of the Invention (1) Industrial Application Field The present invention provides a sliding member, particularly a P
The present invention relates to a sliding member having a surface layer made of b-alloy.

(2)従来の技術 従来、この種摺動部材として、前記表面層をPb−Sn
系合金より構成した平面軸受が知られている(特開昭5
6−96088号公報参照).(3)発明が解決しよう
とする課題 この種平面軸受は、エンジンにおけるクランクシャフト
のジャーナル部、コンロッドの大端部等に適用されてい
るが、エンジンが高速、且つ高出力化の傾向にある現在
の状況下では、従来の平面軸受は、その表面層のオイル
保持性、つまり保油性が悪く耐焼付き性が乏しいという
問題がある。
(2) Conventional technology Conventionally, in this type of sliding member, the surface layer was made of Pb-Sn.
Planar bearings made of alloys are known (Japanese Patent Application Laid-open No. 5
(See Publication No. 6-96088). (3) Problems to be Solved by the Invention This type of flat bearing is applied to the journal part of the crankshaft, the large end of the connecting rod, etc. in engines, but now that engines are becoming faster and more powerful. Under these circumstances, conventional planar bearings have problems in that their surface layer has poor oil retention, that is, poor oil retention and poor seizure resistance.

これは、表面層の摺動面を構成するPb−Sn系合金の
結晶の形態に起因するもので、その形態は一部四角錐体
を含む不定形状である. 本発明は前記に鑑み、表面層の摺動面を構成するPb合
金の結晶の形態および大きさを特定することにより表面
層の保油性を良好にし、これにより表面層の耐焼付き性
を向上させた前記摺動部材を提供することを目的とする
. B.発明の構成 (1)  課題を解決するための手段 本発明は、相手部材との摺動面側に、Pb合金からなる
表面層を備えた摺動部材において、前記表面層の摺動面
を構成するpb合金の結晶を、頂点を摺動面側に向けた
角錐体に構成し、その角錐体の底辺長さdを8μm以下
に設定したことを特徴とする. (2)作 用 ?面層の摺動面を構成するPb合金の結晶の形態および
大きさを前記のように特定すると、表面層の保油性を良
好にして耐焼付き性を向上させることができる。
This is due to the morphology of the crystals of the Pb-Sn alloy that constitutes the sliding surface of the surface layer, which has an irregular shape including some square pyramids. In view of the above, the present invention improves the oil retention property of the surface layer by specifying the form and size of the crystals of the Pb alloy that constitutes the sliding surface of the surface layer, thereby improving the seizure resistance of the surface layer. The object of the present invention is to provide the above-mentioned sliding member. B. Structure of the Invention (1) Means for Solving the Problems The present invention provides a sliding member having a surface layer made of a Pb alloy on the sliding surface side with a mating member, in which the sliding surface of the surface layer is configured. The present invention is characterized in that the crystal of the PB alloy is formed into a pyramid with the apex facing the sliding surface, and the base length d of the pyramid is set to 8 μm or less. (2) Effect? If the form and size of the crystals of the Pb alloy constituting the sliding surface of the surface layer are specified as described above, the oil retention property of the surface layer can be improved and the seizure resistance can be improved.

た奮゜シ、角錐体の底辺長さdが85mを上回ると、表
面層の保油性が悪くなり、耐焼付き性が低下する. (3)実施例 第1.第2図において、摺動部材としての平面軸受1は
、エンジンにおけるクランクシャフトのジャーナル部、
コンロッドの大端部等に適用されるもので、エンジンに
おけるクランクシャフトのジャーナル部、コンロッドの
大端部等に適用されるもので、第1および第2半体1,
,1■よりなる.両半体11.”lgは同一構造を有し
、裏金2と、その裏金2の相手部材との摺動面側に形成
されたライニング層3と、そのライニング層3の表面に
形成された表面層4とを備えている。裏金2およびライ
ニング層3間には銅メッキ層が、またライニング層3お
よび表面層4間にはニッケルメッキバリャ層がそれぞれ
必要に応じて設けられる。
However, if the base length d of the pyramid exceeds 85 m, the oil retention properties of the surface layer will deteriorate and the seizure resistance will decrease. (3) Example 1. In FIG. 2, a plane bearing 1 as a sliding member is attached to a journal portion of a crankshaft in an engine.
It is applied to the large end of the connecting rod, etc., and is applied to the journal part of the crankshaft in the engine, the large end of the connecting rod, etc. The first and second halves 1,
, 1■. Both halves11. "lg has the same structure and includes a back metal 2, a lining layer 3 formed on the sliding surface side of the back metal 2 with the mating member, and a surface layer 4 formed on the surface of the lining layer 3. A copper plating layer is provided between the back metal 2 and the lining layer 3, and a nickel plating barrier layer is provided between the lining layer 3 and the surface layer 4, as required.

裏金2は圧延鋼板より構成され、その厚さは平面軸受1
の設定厚さにより決められる.ライニング層3は銅、銅
系合金、アルミニウム、アルミニウム系合金等より構成
され、その厚さは50〜500μm、通常は300pm
程度である。表面層4はPb合金より構成され、その厚
さは5〜50μm、通常は20μm程度である. 表面層4を構成するPb合金は、80〜90重量%のP
bと3〜20重量%のSnとを含有し、必要に応じてC
u,I nSAgから選択される少なくとも一種を10
重量%以下含有する。
The back metal 2 is made of a rolled steel plate, and its thickness is equal to that of the plane bearing 1.
It is determined by the set thickness of. The lining layer 3 is made of copper, copper alloy, aluminum, aluminum alloy, etc., and has a thickness of 50 to 500 μm, usually 300 pm.
That's about it. The surface layer 4 is made of a Pb alloy and has a thickness of 5 to 50 μm, usually about 20 μm. The Pb alloy constituting the surface layer 4 contains 80 to 90% by weight of P.
b and 3 to 20% by weight of Sn, and optionally C.
10 at least one selected from u, I nSAg
Contains less than % by weight.

Cuは表面層4の硬さを向上させる機能を有するが、そ
の含有量が10重量%を上回ると、硬さが高くなり過ぎ
て相手部材の摩耗量が増加する.Cuを添加する場合に
は、表面層4の硬さHmvが17〜20になるように、
その含有量を調整するのが望ましい。
Cu has the function of improving the hardness of the surface layer 4, but if its content exceeds 10% by weight, the hardness becomes too high and the amount of wear of the mating member increases. When adding Cu, so that the hardness Hmv of the surface layer 4 is 17 to 20,
It is desirable to adjust its content.

InおよびAgは、表面層4を軟化して初期なじみ特性
を改善する機能を有するが、その含有量が10重量%を
上回ると、表面層4の強度が低下する,In,Agを添
加する場合には、表面層4の硬さHmvが12〜l5に
なるように、その含有量を調整するのが望ましい. 表面層4は、電気メッキ法により形成されるもので、メ
ッキ液としては、4・0〜180g/ffiのPb”、
1.5 〜35g/fのSn”、必要に応じて15g/
ffi以下のCu”″を含むホウフッ化系メッキ液が用
いられる。またメッキ液の温度は10〜35℃、陰極電
流密度は3〜15A/dm”にそれぞれ設定される。
In and Ag have the function of softening the surface layer 4 and improving the initial break-in characteristics, but when their content exceeds 10% by weight, the strength of the surface layer 4 decreases.When adding In and Ag It is desirable to adjust the content so that the hardness Hmv of the surface layer 4 is 12 to 15. The surface layer 4 is formed by electroplating, and the plating solution contains 4.0 to 180 g/ffi of Pb",
1.5 to 35 g/f Sn”, 15 g/f if necessary
A borofluoride plating solution containing Cu"" below ffi is used. Further, the temperature of the plating solution is set to 10 to 35°C, and the cathode current density is set to 3 to 15 A/dm''.

第3図は表面層4の摺動面4aにおける金属組織を示す
電子顕微鏡写真(10,000倍)である.この表面層
4は8重量%のSnと、2重量%のCuとを含有するP
b合金よりなる.その表面層4は銅合金製ライニング層
3上に形成され、表面層4を形成する際の電気メッキ処
理における陰極電流密度は6A/dm2に設定された。
FIG. 3 is an electron micrograph (10,000x magnification) showing the metal structure of the sliding surface 4a of the surface layer 4. This surface layer 4 contains P containing 8% by weight of Sn and 2% by weight of Cu.
Made of b alloy. The surface layer 4 was formed on the copper alloy lining layer 3, and the cathode current density in the electroplating process when forming the surface layer 4 was set to 6 A/dm2.

摺動面4aを構成するPb合金の結晶は、頂点を摺動面
4aに向けた角錐体、図示例では四角錐体をなし、その
4つの斜面はミラー指数で(11l)面に平行な面に属
する。
The Pb alloy crystal constituting the sliding surface 4a forms a pyramid with its apex facing the sliding surface 4a, in the illustrated example a quadrangular pyramid, and its four slopes are planes parallel to the (11l) plane with Miller index. belongs to

第4図は前記Pb合金のX線回折図であり、ミラー指数
で(2 0 0)面および(400)面の回折ピークの
みが認められる. こーで、結晶面の配向性を表わす指数として配向指数O
eを、 Ihkf Σ I  hM! (但し、hkfはミラー指数、 Ihkj!は(hkffi)面の積分強度、Σhkff
iはI hM!の総和) と定義すると、或(hkffi)面において、その配向
指数Oeが100%に近ければ近い程、その(hkf)
面と直交する方向へ配向した結晶面が多いことになる. 前記pb合金の(200)面および(400)面におけ
る積分強度1hkfおよび配向指数Oeは表■の通りで
ある. 表     I 表1より、前記pb合金の(hoe)面における配向指
数Oeは100%であり、したがってPb合金は結晶軸
a,b,cにおいて各軸方向に配向した結晶面、即ち(
h00)面を持つことになる。
FIG. 4 is an X-ray diffraction diagram of the Pb alloy, in which only the diffraction peaks of the (2 0 0) plane and (400) plane are observed in Miller index. Here, the orientation index O is used as an index representing the orientation of the crystal plane.
e, Ihkf Σ I hM! (However, hkf is the Miller index, Ihkj! is the integrated intensity of the (hkffi) plane, Σhkff
i is I hM! ), then in a certain (hkffi) plane, the closer the orientation index Oe is to 100%, the more the (hkf)
This means that there are many crystal planes oriented in the direction perpendicular to the plane. The integrated strength 1hkf and orientation index Oe in the (200) and (400) planes of the PB alloy are shown in Table 3. Table I From Table 1, the orientation index Oe in the (hoe) plane of the Pb alloy is 100%, and therefore the Pb alloy has crystal planes oriented in each axis direction in the crystal axes a, b, and c, that is, (
h00) surface.

第5図は従来例表面層の摺動面における金属組織を示す
電子顕微鏡写真(10.000倍)である.この表面層
は8重量%のSnと、2重量%のCuとを含有するpb
合金よりなり、表面層は電気メッキ処理により銅合金製
ライニング層上に形成されたもので、エンジン用クラン
クシャフトのジャーナル部に適用される. 第6図は従来例Pb合金のX線回折図である.本図から
は特定の結晶面への配向は認められない.種々の(hk
f)面における積分強度1 hkI!.および配向指数
Oeは表■の通りである.表 ■ 第5図および表■から明らかなように、従来例Pb合金
の結晶形態は結晶面がランダムに配向した形態であり、
したがって、摺動面における結晶形態は一部四角錐体を
含む不定形状である.第7図に示すように、本発明,に
係るpb合金の四角錐体5において、その底辺長さdは
8μm以下、好ましくは0.5〜6μmに設定される.
また四角錐体5の底辺長さdと高さhとの関係h/dは
0.2〜1.0、好ましくは0.33〜0. 8に設定
される.このような四角錐体4の大きさは陰極電流密・
度に依存し、その陰極電流密度が高くなると、四角錐体
5が大きく成長する. このようにpb合金の結晶の形態および大きさを設定す
ることによって、表面層4の保油性を良好にすることが
できる。
Figure 5 is an electron micrograph (10.000x magnification) showing the metal structure of the sliding surface of the conventional surface layer. This surface layer contains PB containing 8% by weight Sn and 2% by weight Cu.
Made of alloy, the surface layer is formed on a copper alloy lining layer by electroplating, and is applied to the journal part of engine crankshafts. Figure 6 is an X-ray diffraction diagram of a conventional Pb alloy. This figure does not show any orientation toward a specific crystal plane. various (hk
f) Integrated intensity in the plane 1 hkI! .. and the orientation index Oe are as shown in Table ■. Table ■ As is clear from Figure 5 and Table ■, the crystal morphology of the conventional Pb alloy is such that the crystal planes are randomly oriented.
Therefore, the crystal morphology on the sliding surface is irregular, including some square pyramids. As shown in FIG. 7, in the square pyramid 5 of the PB alloy according to the present invention, the base length d is set to 8 μm or less, preferably 0.5 to 6 μm.
Further, the relationship h/d between the base length d and the height h of the square pyramid 5 is 0.2 to 1.0, preferably 0.33 to 0. It is set to 8. The size of such a square pyramid 4 is determined by the cathode current density and
The square pyramid 5 grows larger as the cathode current density increases. By setting the form and size of the crystals of the pb alloy in this way, the oil retention properties of the surface layer 4 can be improved.

表■は、各種平面軸受において、その表面層の組成、結
晶配向性、したがって(h00)面における配向指数O
e,結晶の形態および大きさ等を比較したものである. 本発明Iは前記本発明におけるPb合金(第3図)に該
当する. 本発明■、■は、本発明Iに比べて陰極電流密度を上げ
た場合に、また本発明■は下げた場合にそれぞれ該当す
る。
Table ■ shows the composition of the surface layer, crystal orientation, and therefore the orientation index O in the (h00) plane for various planar bearings.
e, a comparison of crystal morphology and size. Invention I corresponds to the Pb alloy (Fig. 3) in the invention. Inventions (1) and (2) correspond to cases in which the cathode current density is increased compared to Invention I, and invention (2) corresponds to cases in which it is decreased.

比較例Vは前記従来例におけるPb合金(第5図)に該
当し、その結晶の形態は一部四角錐体を含む不定形状で
あるが陰極電流密度は不明である.比較例■は本発明■
と略同一の組成を有し、また比較例■と略同様の結晶形
態を有するが、陰極電流密度は不明である。
Comparative Example V corresponds to the Pb alloy (Fig. 5) in the conventional example, and its crystal morphology is irregular, including some quadrangular pyramids, but the cathode current density is unknown. Comparative example ■ is the invention ■
It has approximately the same composition as Comparative Example (2), and has approximately the same crystal form as Comparative Example (2), but the cathode current density is unknown.

第8,第9図は本発明1〜■および比較例■、■の焼付
きテスト結果を示す.第8図は四角錐体の底辺長さdと
の関係を、また第9図は底辺長さdと高さh,Lたがっ
てh/dとの関係をそれぞれ示す. 焼付きテストは、回転軸に各平面軸受を摺擦させ、その
平面軸受に対する負荷荷重を漸次増加させることにより
行われ、第8,第9図は各平面軸受の表面層が焼付きを
発生したときの面圧を求めたものである. テスト条件は次の通りである.回転軸の材質JIS  
S48C材に窒化処理を施したもの、回転軸の回転数 
600Orpm 、給油温度 120℃、給油圧力 3
 kg/cj、負荷荷重 1 kg/sec a第8,
第9図から明らかなように、本発明■〜■においては、
表面層4の摺動面4aを構成するPb合金の結晶を四角
錐体5とし、その底辺長さdを8μm以下、好ましくは
0.5〜6μmに設定し、また底辺長さdと高さhとの
関係h/dを0.2〜1.0、好ましくは0.33〜0
. 8に設定することにより、表面層4の保油性を良好
にして、比較例V,Vlに比べて優れた耐焼付き性を得
ることができる. なお、本発明は平面軸受に限らず、他の摺動部材にも適
用される. C,発明の効果 本発明によれば、表面層を構成するpb合金の結晶の形
態および大きさを前記のように特定することによって、
表面層の耐焼付き性を向上させた摺動部材を提供するこ
とができる.
Figures 8 and 9 show the seizure test results for Inventions 1 to 2 and Comparative Examples 2 and 3. Figure 8 shows the relationship between the base length d of a square pyramid, and Figure 9 shows the relationship between the base length d and the height h, L, thus h/d. The seizure test was carried out by sliding each plane bearing against the rotating shaft and gradually increasing the load applied to the plane bearing. Figures 8 and 9 show that the surface layer of each plane bearing was subject to seizure. This is the result of calculating the surface pressure at that time. The test conditions are as follows. Rotating shaft material JIS
S48C material with nitriding treatment, rotation speed of rotating shaft
600Orpm, oil supply temperature 120℃, oil supply pressure 3
kg/cj, applied load 1 kg/sec a 8th,
As is clear from FIG. 9, in the present invention (■ to ■),
The Pb alloy crystal constituting the sliding surface 4a of the surface layer 4 is a square pyramid 5, and the base length d is set to 8 μm or less, preferably 0.5 to 6 μm, and the base length d and height are The relationship with h is 0.2 to 1.0, preferably 0.33 to 0.
.. By setting it to 8, it is possible to improve the oil retention property of the surface layer 4 and obtain superior seizure resistance compared to Comparative Examples V and Vl. Note that the present invention is applicable not only to plane bearings but also to other sliding members. C. Effects of the Invention According to the present invention, by specifying the form and size of the crystals of the PB alloy constituting the surface layer as described above,
It is possible to provide a sliding member with improved surface layer seizure resistance.

【図面の簡単な説明】[Brief explanation of drawings]

第1,第2図は平面軸受を示し、第1図は分解平面図、
第2図は第1図■一■線断面図、第3図は本発明に係る
表面層の金属組織を示す顕微鏡写真、第4図は本発明に
係る表面層を構成するPb合金のX線回折図、第5図は
従来例に係る表面層の金属組織を示す顕微鏡写真、第6
図は従来例に係る表面層を構成するPb合金のX線回折
図、第7図は四角錐体の斜視図、第8,第9図は焼付き
テスト結果を示すグラフである。 l・・・平面軸受(摺動部材) 4・・・表面層、4a ・・・摺動面、 5・・・四角錐体(角錐体) 特 許 出 願 人 本田技研工業株式会社
Figures 1 and 2 show a plane bearing, Figure 1 is an exploded plan view,
Fig. 2 is a cross-sectional view taken along line 1 in Fig. 1, Fig. 3 is a micrograph showing the metal structure of the surface layer according to the present invention, and Fig. 4 is an X-ray of the Pb alloy constituting the surface layer according to the present invention. Diffraction diagram, Figure 5 is a micrograph showing the metal structure of the surface layer according to the conventional example, Figure 6 is
The figure shows an X-ray diffraction diagram of a Pb alloy constituting a surface layer according to a conventional example, FIG. 7 is a perspective view of a square pyramid, and FIGS. 8 and 9 are graphs showing seizure test results. l... Plane bearing (sliding member) 4... Surface layer, 4a... Sliding surface, 5... Square pyramid (pyramid) Patent applicant Honda Motor Co., Ltd.

Claims (2)

【特許請求の範囲】[Claims] (1)相手部材との摺動面側に、Pb合金からなる表面
層を備えた摺動部材において、前記表面層の摺動面を構
成するPb合金の結晶を、頂点を摺動面側に向けた角錐
体に構成し、その角錐体の底辺長さdを8μm以下に設
定したことを特徴とする摺動部材。
(1) In a sliding member having a surface layer made of a Pb alloy on the sliding surface side with a mating member, the Pb alloy crystals constituting the sliding surface of the surface layer are placed with the apex on the sliding surface side. 1. A sliding member characterized in that it is formed into a oriented pyramid, and the base length d of the pyramid is set to 8 μm or less.
(2)前記角錐体の底辺長さdと高さhとの関係h/d
を0.2〜1.0に設定した、第(1)項記載の摺動部
材。
(2) Relationship h/d between the base length d and the height h of the pyramid
The sliding member according to item (1), wherein the is set to 0.2 to 1.0.
JP2010121A 1990-01-19 1990-01-19 Sliding member Expired - Lifetime JPH079079B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2010121A JPH079079B2 (en) 1990-01-19 1990-01-19 Sliding member
DE4101386A DE4101386C2 (en) 1990-01-19 1991-01-18 Slider
CA002034568A CA2034568C (en) 1990-01-19 1991-01-18 Slide member
GB9101144A GB2240343B (en) 1990-01-19 1991-01-18 Slide member
US07/989,733 US5310606A (en) 1990-01-19 1992-12-10 Slide member
US08/240,018 US5468567A (en) 1990-01-19 1994-05-09 Slide member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010121A JPH079079B2 (en) 1990-01-19 1990-01-19 Sliding member

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP19743391A Division JPH0823080B2 (en) 1991-07-12 1991-07-12 Sliding member

Publications (2)

Publication Number Publication Date
JPH03215696A true JPH03215696A (en) 1991-09-20
JPH079079B2 JPH079079B2 (en) 1995-02-01

Family

ID=11741469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010121A Expired - Lifetime JPH079079B2 (en) 1990-01-19 1990-01-19 Sliding member

Country Status (1)

Country Link
JP (1) JPH079079B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698925A1 (en) * 1992-12-03 1994-06-10 Honda Motor Co Ltd Slip surface structure.
DE4390686C2 (en) * 1992-02-28 2003-04-03 Daido Metal Co Ltd Plain bearings and process for its manufacture

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02190497A (en) * 1989-01-18 1990-07-26 Ndc Co Ltd Slide bearing material and its production

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02190497A (en) * 1989-01-18 1990-07-26 Ndc Co Ltd Slide bearing material and its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4390686C2 (en) * 1992-02-28 2003-04-03 Daido Metal Co Ltd Plain bearings and process for its manufacture
FR2698925A1 (en) * 1992-12-03 1994-06-10 Honda Motor Co Ltd Slip surface structure.

Also Published As

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JPH079079B2 (en) 1995-02-01

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