JPS649499B2 - - Google Patents
Info
- Publication number
- JPS649499B2 JPS649499B2 JP59196144A JP19614484A JPS649499B2 JP S649499 B2 JPS649499 B2 JP S649499B2 JP 59196144 A JP59196144 A JP 59196144A JP 19614484 A JP19614484 A JP 19614484A JP S649499 B2 JPS649499 B2 JP S649499B2
- Authority
- JP
- Japan
- Prior art keywords
- shield plate
- ring
- seal groove
- cylindrical surface
- shield
- 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
- 238000005096 rolling process Methods 0.000 claims description 13
- 238000004080 punching Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
-
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7846—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with a gap between the annular disc and the inner race
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
Description
【発明の詳細な説明】
この発明はシールド形転がり軸受のシールド板
取付け方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for attaching a shield plate to a shield type rolling bearing.
従来、小・中型の転がり軸受のシールド板は、
薄肉鋼板を所定形状にプレス成形し、シール溝に
嵌入後、プレス加締めしてシール溝に固定してい
るが、大型の転がり軸受のシールド板は、薄肉鋼
板を所定形状にプレス成形するが、シール溝にプ
レス加締めでなく、原形のままで嵌込み装着して
いる。即ち、第１図に示す様に、軸受外輪１の両
側にシールド板２，２の外周部を圧入嵌合し、内
周部を内輪３にラビリンス隙間をもつて対向封止
させ、シールド板２，２の外周部の円周数個所に
設けた突起２ａ，２ａを外輪１に設けた環状溝１
ａ，１ａに嵌合封止させて抜け止めしている。 Conventionally, shield plates for small and medium-sized rolling bearings were
A thin steel plate is press-formed into a predetermined shape, fitted into a seal groove, and then press crimped to fix it in the seal groove. Shield plates for large rolling bearings are made by press-forming thin-walled steel plates into a predetermined shape. It is fitted into the seal groove in its original shape, rather than being press-tightened. That is, as shown in FIG. 1, the outer peripheral parts of the shield plates 2, 2 are press-fitted on both sides of the bearing outer ring 1, and the inner peripheral parts are sealed facing the inner ring 3 with a labyrinth gap. , 2, an annular groove 1 provided in the outer ring 1 with protrusions 2a, 2a provided at several locations on the circumference of the outer periphery of the outer ring 1.
a and 1a are fitted and sealed to prevent them from coming off.
特に、大型の転がり軸受は、小・中型の転がり
軸受に比べ、用途が限られており、通常油潤滑さ
れることが多く、グリース潤滑で、かつ、シール
ド板を使用してグリースを密封する方式はあまり
使用されていない上、大量生産されることが殆ん
どなく、受注に応じて小ロツト単位で生産される
もので、シールド板の装着手段として、専用の大
型プレス加締め装置を準備することは、大型高価
でコスト高となるため、不利であり、原形のまま
で嵌め込み装着する方式が採用されている。 In particular, large rolling bearings have limited uses compared to small and medium-sized rolling bearings, and are often lubricated with oil. is not used very often and is rarely mass-produced; it is produced in small lots according to orders, and a dedicated large press crimping device is prepared as a means of attaching the shield plate. This is disadvantageous because it is large, expensive, and costly, so a method of fitting the device in its original form has been adopted.
このシールド板を原形のままで嵌込み装着する
方式では、シールド板を予めプレス成形しておく
必要がある。ところが、プレス成形するために
は、当然、プレス金型が必要であり、サイズの大
きい転がり軸受用シールド板を製作するには、大
型のプレス金型が必要であつて、プレス金型費が
高価となり、かつ、サイズの大きいシールド板
は、寸法精度が十分に得られず、シール溝に嵌め
込み装着した場合、転がり軸受外径面に変形等の
発生が避けられないため、シール溝の一部研磨加
工等が必要となり、さらに、製作個数が少ないた
め、軸受全体のコストがかなり高くなる欠点があ
つた。また、プレス金型の製作にかなりの日数を
必要とし、短納期の対応がむづかしい等の欠点が
あつた。 In this method of fitting the shield plate in its original shape, it is necessary to press-form the shield plate in advance. However, press molding naturally requires a press mold, and manufacturing a shield plate for a large rolling bearing requires a large press mold, making the press mold expensive. In addition, the shield plate, which is large in size, cannot have sufficient dimensional accuracy, and if it is fitted into the seal groove, deformation etc. will inevitably occur on the outer diameter surface of the rolling bearing, so it is necessary to polish a part of the seal groove. This requires machining, and furthermore, because the number of pieces produced is small, the cost of the entire bearing is considerably high. Further, there were drawbacks such as the fact that it took a considerable number of days to manufacture the press mold, making it difficult to meet short delivery times.
この発明は従来のシールド方式の上記の欠点に
鑑み、シールド板を極く簡単な平板リング状と
し、旋削加工で製作できるようにし、しかも、そ
の取付けを、ブレス加締めによらず、手動工具又
は簡単な機械的工具によつてシールド板にポンチ
ング加工を施して加締めることにより、従来の問
題点を改善したものである。 In view of the above-mentioned drawbacks of the conventional shielding method, the present invention has made the shielding plate into a very simple flat ring shape, which can be manufactured by turning, and which can be attached by manual tools or by hand tools or by pressing with a press. The conventional problems have been improved by punching and tightening the shield plate using a simple mechanical tool.
以下、この発明を図面に示す実施例について説
明すると、次の通りである。 Embodiments of the present invention shown in the drawings will be described below.
第２図において、１０は内輪、１１は外輪、１
２は転動体、１３は保持器、１４はシールド板を
示す。 In Fig. 2, 10 is an inner ring, 11 is an outer ring, 1
2 is a rolling element, 13 is a cage, and 14 is a shield plate.
シールド板１４は、第３図に示すように、平板
リング状であつて、その材質は、例えば、冷間圧
延鋼板（JIS−SPCC）などの従来からシールド
板に使用されている材料で、その板厚はやや厚目
のものが使用され、汎用旋盤等による旋削加工で
製作する。 As shown in FIG. 3, the shield plate 14 has a flat ring shape, and is made of a material conventionally used for shield plates, such as cold rolled steel plate (JIS-SPCC). A slightly thicker plate is used, and it is manufactured by turning using a general-purpose lathe.
外輪１１の軸方向両端内径部には、第３図及び
第４図に拡大して示すように、外輪１１と同心環
状で、かつ、シールド板１４の板厚より若干大き
い軸方向の寸法をもつたシール溝１９が旋削加工
されている。すなわちシール溝１９は、端面に開
口して軸線と平向に延在する円筒面部１６と、こ
の円筒面部１６の軸方向内方端と連なつて半径方
向に延在する壁面部１５とで構成される。円筒面
部１６の途中に環状凹部１７を設けてある。円筒
面部１６のうち、環状凹部１７よりも軸方向外側
に位置する部分を環状係止面部１８と呼ぶことに
する。したがつて円筒面部１６と環状係止面部１
８とは同径で、しかも、シールド板１４の径より
若干大径としてシールド板１４をルーズフイツト
させ得るようにしてある。また、環状凹部１７の
軸方向外側の壁面を傾斜側面１７ａとなし、この
傾斜側面１７ａと環状係止面部１８との会合する
部分が、壁面部１５に当接した状態におけるシー
ルド板１４の板厚よりも軸方向外側に位置するよ
うにする。 The inner diameter portions of both axial ends of the outer ring 11 have an axial dimension that is concentric with the outer ring 11 and slightly larger than the thickness of the shield plate 14, as shown enlarged in FIGS. 3 and 4. The seal groove 19 is machined by turning. That is, the seal groove 19 is composed of a cylindrical surface portion 16 that is open at the end face and extends parallel to the axis, and a wall surface portion 15 that extends in the radial direction and is continuous with the axially inner end of the cylindrical surface portion 16. be done. An annular recess 17 is provided in the middle of the cylindrical surface portion 16. A portion of the cylindrical surface portion 16 located axially outward from the annular recess 17 will be referred to as an annular locking surface portion 18 . Therefore, the cylindrical surface portion 16 and the annular locking surface portion 1
8, and has a slightly larger diameter than the diameter of the shield plate 14 so that the shield plate 14 can be loosely fitted. Further, the wall surface on the outer side in the axial direction of the annular recess 17 is formed as an inclined side surface 17a, and the thickness of the shield plate 14 when the portion where the inclined side surface 17a and the annular locking surface section 18 meet is in contact with the wall section 15. so that it is located further outward in the axial direction.
シールド板１４の取付けは次のようにしておこ
なう。 The shield plate 14 is attached as follows.
まず、シールド板１４をシール溝１９に嵌め込
んで壁面部１５に当接させる（第３図）。このと
き壁面部１５が位置決めの役割を果たす。続いて
第４図に示す様に、シールド板１４の外側面で、
かつ、周縁部分の数個所（例えば、円周等配位置
６個所）を、ポンチ工具２０で打刻することによ
り、シールド板１４の周縁を局部的に塑性変形さ
せて外周方向に突出した膨出部１４ａを形成し、
膨出部１４ａの先端を外輪１１の前記環状凹部１
７の傾斜側面１７ａに弾性的に係止させる。そう
することによつて、当該係止点部１４ｂを傾斜側
面１７ａに喰い付かせ、かつ、シールド板１４の
内側面を壁面部１５に密着させると共に、シール
ド板１４の外周面を円筒面部１６に密着させて密
封させるものである。 First, the shield plate 14 is fitted into the seal groove 19 and brought into contact with the wall portion 15 (FIG. 3). At this time, the wall portion 15 plays the role of positioning. Next, as shown in FIG. 4, on the outer surface of the shield plate 14,
In addition, by punching several places on the peripheral edge portion (for example, 6 equally spaced positions on the circumference) with the punch tool 20, the peripheral edge of the shield plate 14 is locally plastically deformed to form a bulge protruding in the outer circumferential direction. forming a portion 14a;
The tip of the bulging portion 14a is connected to the annular recess 1 of the outer ring 11.
7 is elastically engaged with the inclined side surface 17a. By doing so, the locking point portion 14b is brought into contact with the inclined side surface 17a, the inner surface of the shield plate 14 is brought into close contact with the wall surface portion 15, and the outer circumferential surface of the shield plate 14 is brought into close contact with the cylindrical surface portion 16. It is meant to be tightly sealed.
上記ポンチ工具２０は、シール溝１９の内周面
との干渉を防止するため、一方の面を軸方向に平
面な面とし、他方の面を傾斜面とし、軸方向に平
行な面を外輪１１の円筒面部１６と対向させてハ
ンマー等で手動的又は機械的にポンチ工具２０の
後端を打撃して上記加工を行う。 In order to prevent interference with the inner circumferential surface of the seal groove 19, the punch tool 20 has one surface that is flat in the axial direction, the other surface that is inclined, and a surface that is parallel to the axial direction of the outer ring 11. The above processing is performed by manually or mechanically striking the rear end of the punch tool 20 with a hammer or the like while facing the cylindrical surface portion 16 of the punch tool 20 .
第５図Ａ〜Ｄに示すように、ポンチ２０を手で
持つてシールド板１４に打ち込んでいくと、テー
パ面に、打力Ｆに対する反力Ｒが斜上向きに作用
してポンチ２０を上方に少し動かすような働きを
する。その結果、シールド板１４の外周縁が塑性
変形して膨出部１４ａが生じる。膨出部１４ａは
単に外径方向だけでなく、反力Ｒの向きに対応し
て斜上方すなわち傾斜側面１７ａに向かつて隆起
することになる。これにより、膨出部１４ａと傾
斜側面１７ａとが当接してシールド板１４がしつ
かりと固定される。 As shown in FIGS. 5A to 5D, when the punch 20 is held in the hand and driven into the shield plate 14, a reaction force R against the impact force F acts diagonally upward on the tapered surface, pushing the punch 20 upward. It works by moving it a little. As a result, the outer peripheral edge of the shield plate 14 is plastically deformed to form a bulge 14a. The bulging portion 14a bulges not only in the outer radial direction but also obliquely upward, that is, toward the inclined side surface 17a, in accordance with the direction of the reaction force R. As a result, the bulging portion 14a and the inclined side surface 17a come into contact with each other, and the shield plate 14 is firmly fixed.
なお、上述のとおり、膨出部１４ａと傾斜側面
１７ａとが当接して弾圧し合う方向は半径方向か
ら逸れているため、ポンチングやシールド板の保
持反力によつて軌道輪に好ましくない変形が生じ
る虞を極力少なくすることができる。 As mentioned above, since the direction in which the bulging portion 14a and the inclined side surface 17a abut and press each other is deviated from the radial direction, the raceway ring may be undesirably deformed due to punching or the holding reaction force of the shield plate. The possibility of this occurring can be minimized.
シールド板１４の内周は、内輪１０の円筒部２
１にラビリンス隙間をもつて対向させる。 The inner circumference of the shield plate 14 is the same as the cylindrical portion 2 of the inner ring 10.
1 with a labyrinth gap.
上記図面の実施例は、シールド板１４を外輪側
に固着させた場合を示したが、この発明は、シー
ルド板１４を内輪側に固着させて実施してもよい
ことは勿論である。 Although the embodiment of the drawings above shows the case where the shield plate 14 is fixed to the outer ring side, it goes without saying that the present invention may be implemented with the shield plate 14 fixed to the inner ring side.
この発明によれば、シールド板１４と壁面部１
５とが密着するので全周にわたつて確実な面シー
ル作用が保証される。しかも、シールド板１４の
膨出部１４ａと軌道輪のシール溝１９の傾斜側面
１７ａとが弾圧し合うことによつてシールド板１
４がしつかりと固定されるので、みだりに遊転し
たり脱落することがなく、長期間安定したシール
機能を発揮する。さらに次のような作用・効果が
ある：
(1) シールド板はプレス加工を必要としないの
で、小量生産に適する。 According to this invention, the shield plate 14 and the wall portion 1
5 are in close contact with each other, ensuring a reliable surface sealing effect over the entire circumference. In addition, the shield plate 1
4 is firmly fixed, so it does not rotate or fall off unnecessarily, and exhibits a stable sealing function over a long period of time. Furthermore, it has the following functions and effects: (1) Since the shield plate does not require press processing, it is suitable for small-scale production.
(2) プレス金型が不要のため、コスト低減、製品
の納期短縮ができる。(2) No press mold is required, reducing costs and shortening product delivery times.
(3) シールみぞ（シールド板装着部の円筒部や溝
部）は、高い精度を必要としないので製作し易
い。(3) The seal groove (cylindrical part or groove part of the shield plate attachment part) does not require high precision and is easy to manufacture.
(4) シールド板の大きさに制限が無い。(4) There is no limit to the size of the shield plate.
(5) ポンチング加工で形成される膨出部１４ａを
環状凹部１７の軸方向外側の傾斜側面１７ａに
当接させるようにしたことにより、これら相互
の弾圧作用が軸線に対して傾斜した方向でおこ
なわれる。このため、加締め後の軸受外径面の
変形を最小限におさえられるので、薄肉軸受に
も適する。(5) By bringing the bulging portion 14a formed by punching into contact with the axially outer inclined side surface 17a of the annular recess 17, the mutual pressure action is performed in a direction inclined with respect to the axis. It will be done. Therefore, deformation of the outer diameter surface of the bearing after crimping can be minimized, making it suitable for thin-walled bearings.
(6) 軸受の形式にとらわれず転がり軸受全般に応
用できる。(6) Can be applied to all rolling bearings regardless of bearing type.
第１図は従来のシールド形転がり軸受の要部断
面図、第２図は本発明の実施例を示すシールド形
転がり軸受の要部断面図、第３図は軌道輪に形成
したシールド板装着部とシールド板とのポンチン
グ加工前の関係を示す拡大断面図、第４図は同じ
くポンチング加工等の状態を示す拡大断面図であ
る。第５図Ａ〜Ｄは、ポンチング加工による膨出
部の形成過程を示す略図である。
１０……内輪、１１……外輪、１２……転動
体、１３……保持器、１４……シールド板、１４
ａ……膨出部、１５……壁面部、１６……円筒面
部、１７……環状凹部、１７ａ……傾斜側面、１
８……環状係止面部、１９……シール溝、２０…
…ポンチ工具。
Fig. 1 is a cross-sectional view of a main part of a conventional shield type rolling bearing, Fig. 2 is a cross-sectional view of a main part of a shield type rolling bearing showing an embodiment of the present invention, and Fig. 3 is a portion where a shield plate is attached to a bearing ring. FIG. 4 is an enlarged sectional view showing the relationship between the shield plate and the shield plate before punching, and FIG. 4 is an enlarged sectional view showing the state of punching, etc. FIGS. 5A to 5D are schematic diagrams showing the process of forming a bulge by punching. 10... Inner ring, 11... Outer ring, 12... Rolling element, 13... Cage, 14... Shield plate, 14
a...Bulging part, 15... Wall surface part, 16... Cylindrical surface part, 17... Annular recessed part, 17a... Inclined side surface, 1
8... Annular locking surface portion, 19... Seal groove, 20...
...Punch tool.
Claims (1)
方向端部に設けたシール溝に、平板リング状の金
属製シールド板を装着するにあたり、 前記シール溝を、シールド板とルーズフイツト
しうる円筒面部と、この円筒面部の軸方向内方端
と連なつて半径方向に延在する壁面部とで構成
し、かつ、前記円筒面部に環状凹部を設け、 該シール溝にシールド板を嵌め込んで壁面部に
密着させ、シールド板の周縁で、かつ、円筒面部
に近接した複数個所をポンチング加工により外周
方向に膨出させることにより当該膨出部を環状凹
部の軸方向外方の傾斜側面に係止させてシールド
板を前記一方の軌道輪に固着すると共に、シール
ド板を他方の軌道輪の円筒部にラビリンス間隙を
もつて対向させるようにしたことを特徴とするシ
ールド形転がり軸受のシールド板取付け方法。[Claims] 1. When attaching a flat ring-shaped metal shield plate to a seal groove provided at the axial end of the bearing ring of either the outer ring or the inner ring, the seal groove is connected to the shield plate. Consisting of a cylindrical surface part that can be loosely fitted, and a wall part that extends in the radial direction and connected to the axially inner end of the cylindrical surface part, an annular recess is provided in the cylindrical surface part, and a shield plate is provided in the seal groove. The bulges are inserted into the shield plate and brought into close contact with the wall surface, and the bulges are made to bulge outward in the axial direction of the annular recess by punching multiple points on the periphery of the shield plate and close to the cylindrical surface. A shield type rolling bearing characterized in that the shield plate is fixed to the one raceway ring by being locked to the inclined side face, and the shield plate is opposed to the cylindrical part of the other raceway ring with a labyrinth gap therebetween. How to install the shield plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59196144A JPS60101318A (en) | 1984-09-19 | 1984-09-19 | Shielding method of shield type rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59196144A JPS60101318A (en) | 1984-09-19 | 1984-09-19 | Shielding method of shield type rolling bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60101318A JPS60101318A (en) | 1985-06-05 |
| JPS649499B2 true JPS649499B2 (en) | 1989-02-17 |
Family
ID=16352952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59196144A Granted JPS60101318A (en) | 1984-09-19 | 1984-09-19 | Shielding method of shield type rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60101318A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2544403Y2 (en) * | 1991-08-20 | 1997-08-20 | セイレイ工業株式会社 | Harvesting culm inheriting device for self-propelled combine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2079822A5 (en) * | 1970-02-13 | 1971-11-12 | Skf Cie Applic Mecanique |
-
1984
- 1984-09-19 JP JP59196144A patent/JPS60101318A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60101318A (en) | 1985-06-05 |
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