JPS60116919A - Rolling bearing having splitted outer ring - Google Patents
Rolling bearing having splitted outer ringInfo
- Publication number
- JPS60116919A JPS60116919A JP22421283A JP22421283A JPS60116919A JP S60116919 A JPS60116919 A JP S60116919A JP 22421283 A JP22421283 A JP 22421283A JP 22421283 A JP22421283 A JP 22421283A JP S60116919 A JPS60116919 A JP S60116919A
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- upper half
- lower half
- housing
- split
- 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.)
- Pending
Links
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
- F16C33/58—Raceways; Race rings
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Connection Of Plates (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は外輪分割形ころがシ軸受（以下、ころがシ軸受
と称する）に係シ、特に分割面をもって上半分と下半分
とに分割された上半外輪および下半外輪から構成される
外輪を有するころがシ軸受に関するものである。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a roller bearing (hereinafter referred to as a roller roller bearing) having a split outer ring. A roller bearing has an outer ring composed of an upper half outer ring and a lower half outer ring.
第１図および第２図にはころがり軸受の従来例が示され
ている。同図に示されているようにころが９軸受は内輪
１．゛転動体２および外輪３を備え、外輪３は分割面４
をもって上半分と下半分とに分割された上半外輪５ａお
よび下半外輪５ｂから構成されている。そしてこの分割
面４はＶ字形に形成されていた。1 and 2 show conventional examples of rolling bearings. As shown in the figure, a bearing with 9 rollers has an inner ring of 1.゛Equipped with a rolling element 2 and an outer ring 3, the outer ring 3 has a dividing surface 4
It is composed of an upper half outer ring 5a and a lower half outer ring 5b, which are divided into an upper half and a lower half. This dividing surface 4 was formed in a V-shape.
このように構成されたころがｐ軸受はその内輪１が回転
軸６に嵌合され、外輪３はハウジング７すなわち分割し
た上ハウジング８ａおよび下ハウジング８ｂ内に収納さ
れて使用されるが、上ハウジング８ａと下ハウジング８
ｂとは外輪３収納後にハウジング合せ目ポルト９で締結
される。In the roller P bearing configured in this way, the inner ring 1 is fitted to the rotating shaft 6, and the outer ring 3 is housed in the housing 7, that is, the divided upper housing 8a and lower housing 8b. 8a and lower housing 8
b is fastened to housing joint port 9 after housing outer ring 3.
ところでこのように構成、使用されるころがシ軸受は外
輪３の分割面５４において上半外輪５ａと下半外輪５ｂ
とが径方向にずれを発生し、外輪３の内径すなわち軌道
面１０に微小な段差が生じ、転動体２が通過する時に異
音を発生して振動、騒音が大きかった。このような段差
が生じるのはころがシ軸受の外輪３を保持するハウジン
グ７の内径と外輪３の外径との加工公差によるものであ
るが、との加工公差をなくすためこれら両者３．７間に
隙間が発生しないように、ハウジング７の内径を外輪３
の外径よシ小さくして締シばめにすると、上ハウジング
８ａと下ハウジング８ｂとの合せ面近くの外輪３が絞ら
れて縦長の楕円形に変形してしまい、ころがシ軸受の焼
損などの原因になる。このため一般に外輪３とハウジン
グ７とはすきまばめされている。By the way, the roller bearing constructed and used in this manner has an upper half outer ring 5a and a lower half outer ring 5b at the dividing surface 54 of the outer ring 3.
This caused a shift in the radial direction, and a small step was created on the inner diameter of the outer ring 3, that is, on the raceway surface 10, and when the rolling elements 2 passed, abnormal noise was generated, resulting in large vibrations and noise. The reason why such a step occurs is due to the machining tolerance between the inner diameter of the housing 7 that holds the outer ring 3 of the roller bearing and the outer diameter of the outer ring 3. The inner diameter of the housing 7 is set to the outer ring 3 so that there is no gap between the inner diameter and the outer ring 3.
If the outer diameter of the outer ring 3 is made smaller than the outer diameter and a tight fit is made, the outer ring 3 near the mating surface of the upper housing 8a and the lower housing 8b will be squeezed and deformed into a vertically elongated oval shape, resulting in burnout of the roller bearing. It can cause things like. For this reason, the outer ring 3 and the housing 7 are generally fitted with a clearance.
本発明は以上の点に鑑みなされたものであシ、外輪とハ
ウジングとがすきまばめされた場合でも振動、騒音の低
減を可能とした外輪分割形ころがシ軸受を提供すること
を目的とするものである。The present invention was made in view of the above points, and an object of the present invention is to provide a bearing with split outer ring rollers that can reduce vibration and noise even when the outer ring and housing are loosely fitted. It is something to do.
すなわち本発明は内輪、転動体および外輪を備え、外輪
は分割面をもって上半分と下半分とに分割された上半外
輪および下半外輪から構成されている外輪分割形ころが
り軸受において、上半外輪と下半外輪とを、分割面に上
半外輪と下半外輪との位置決めガイドを設け、かつ分割
面に対して所定の角度で斜めに挿入したボルトで締付は
固定したことを特徴とするものでアシ、これによって上
半外輪と下半外輪とは位置決めガイドおよびボルトを介
して変形が生じないように締付け、固定されるようにな
る。That is, the present invention provides an outer ring split type rolling bearing comprising an inner ring, a rolling element, and an outer ring, and the outer ring is divided into an upper half and a lower half by a dividing surface. A positioning guide for the upper half outer ring and the lower half outer ring is provided on the split surface, and the upper half outer ring and the lower half outer ring are fastened and fixed with bolts inserted diagonally at a predetermined angle with respect to the split surface. As a result, the upper half outer ring and the lower half outer ring are tightened and fixed via the positioning guide and bolts so that no deformation occurs.
以下、図示した実施例に基づいて本発明を説明する。第
３図から第８図には本発明の一実施例が示されている。The present invention will be explained below based on the illustrated embodiments. An embodiment of the present invention is shown in FIGS. 3-8.
なお従来と同じ部品には同じ符号を付したので説明を省
略する。本実施例では上半外輪５Ｃと下半外輪５ｄとを
、分割面４ａに上半外輪５Ｃと下半外輪５ｄとの位置決
めガイドを設け、かつ分割面４ａに対して所定の角度θ
で斜めに挿入したボルト１１で締付は固定した。そして
位置決めガイドを分割面４ａの軸方向に設は声嵌合部１
２と、分割面４ａの径方向にその外周側から挿入した丸
ビン１３とで形成した。このようにすることによシ外輪
３ａすなわち上半外輪５Ｃと下半外輪５ｄとは位置決め
ガイドである嵌合部）１２、’丸ピン１３およびボルト
１１で変形が生じないように締付け、固定されるように
なって、外輪３ａとハウジング７ａとがすきまばめされ
た場合でも振動、騒音の低減を可能とした外輪分割形こ
ろがυ軸受を得ることができる。Note that parts that are the same as those in the conventional system are given the same reference numerals, and therefore their explanations will be omitted. In this embodiment, a positioning guide for the upper half outer ring 5C and the lower half outer ring 5d is provided on the dividing surface 4a, and a predetermined angle θ is provided with respect to the dividing surface 4a.
Tightening was fixed with bolt 11 inserted diagonally. Then, a positioning guide is set in the axial direction of the dividing surface 4a.
2 and a round bottle 13 inserted from the outer peripheral side in the radial direction of the dividing surface 4a. By doing this, the outer ring 3a, that is, the upper half outer ring 5C and the lower half outer ring 5d, are tightened and fixed with the fitting part 12, which is a positioning guide, the round pin 13 and the bolt 11 so as not to cause deformation. Thus, even when the outer ring 3a and the housing 7a are loosely fitted, it is possible to obtain a υ bearing with split outer ring rollers that can reduce vibration and noise.
すなわち外輪３ａの分割面４ａの嵌合部１２として、下
半外輪５ｄの軸方向に凸状突起１２ａを、上半外輪５Ｃ
の軸方向には凹状溝１２ｂを夫々設け、この凹状溝１２
ｂに凸状突起１２ａを挿入して上半外輪５Ｃと下半外輪
５ｄとを嵌合させた。That is, as the fitting part 12 of the dividing surface 4a of the outer ring 3a, a convex projection 12a is provided in the axial direction of the lower half outer ring 5d, and the upper half outer ring 5C
A concave groove 12b is provided in the axial direction of each of the concave grooves 12b.
The convex protrusion 12a was inserted into b to fit the upper half outer ring 5C and the lower half outer ring 5d.
そして上半外輪５Ｃと下半外輪５ｄとの分割面４ａの径
方向に外輪３ａの外周面から丸ビｙ１３を挿入したが、
この丸ビン１３は上半外輪５ｃと下半外輪５ｄとに均等
に、すなわち上半外輪５ｃし τエムｂｒｈへ ｅ ｊ
Ｉ−１／Ｐ−ｔｒｌ’ｌ −恥−１１，１＝ 、Ｊ、
、 、、ｊ、フ ＞ Ａ ＪＪＰ 仕貞龜し、この分割
面４ａから外周側に突出した丸ビン１３の頭部はこの分
割面４ａの上ハウジング８ｃと下ハウジング８ｄとの合
わせ目に設けた四角形の切欠溝ｉ４（上ハウジング８ｃ
側の切欠溝は図示せず）に入るようにした。このように
嵌合部１２と丸ビン１３とで上半外輪５ｃと下半外輪５
ｄとがまわらないように位置決めしたが、この位置決め
の場合に嵌合部１２の凹状溝１２ｂと凸状突起１２ａと
は外輪３ａの外周側の接触面１５で接触させるようにし
、かつ上半外輪５ｃおよび下半外輪５ｄの内径である軌
道面１０には段差が生じないようにした（第３図および
第４図参照）。Then, a round bead y13 was inserted from the outer peripheral surface of the outer ring 3a in the radial direction of the dividing surface 4a between the upper half outer ring 5C and the lower half outer ring 5d.
This round bottle 13 is distributed equally between the upper half outer ring 5c and the lower half outer ring 5d, that is, the upper half outer ring 5c and the upper half outer ring 5c.
I-1/P-trl'l -shame-11,1= ,J,
, , , j, F > A JJP The head of the round bottle 13 protruding outward from the dividing surface 4a is provided at the joint between the upper housing 8c and the lower housing 8d of this dividing surface 4a. Square notch groove i4 (upper housing 8c
The notch groove on the side is not shown). In this way, the fitting part 12 and the round bottle 13 form the upper half outer ring 5c and the lower half outer ring 5.
In this positioning, the concave groove 12b and the convex protrusion 12a of the fitting part 12 are brought into contact with each other at the contact surface 15 on the outer circumferential side of the outer ring 3a, and the upper half outer ring 5c and the raceway surface 10, which is the inner diameter of the lower half outer ring 5d, was designed to have no step (see FIGS. 3 and 4).
このようにして位置決めした上半外輪５ｃと下半外輪５
ｄとを分割面４ａに所定の角度θで挿入したボルト１１
で締付は固定し、固足後は内径１０を最終的に仕上げ７
１０工したが、所定の角度θにしたのはボルト１１で締
付けた場合に、ボルト１１の締付力Ｑによって発生する
水平方向の分力Ｆを分割面４ａの摩擦力以上にするため
で・ある。The upper half outer ring 5c and the lower half outer ring 5 positioned in this way
d and inserted into the dividing surface 4a at a predetermined angle θ.
Fix the tightening with , and after tightening, finish the inner diameter 10 with 7
Although it took 10 steps, the reason why we set the predetermined angle θ is to make the horizontal component force F generated by the tightening force Q of the bolt 11 when tightening the bolt 11 greater than the frictional force of the dividing surface 4a. be.
＋′３）＋＋ｔ、ｔＭルｋ １１−ＰｌｌｌｚＭｋ−に
−ｍｌＬＷ、Ｗｎ、 ｋ １１の締付力Ｑは、上半外輪
５Ｃおよび下半外輪５ｄの分割面４ａにおいて水平方向
の分力Ｆを生じる。+'3) ++t, tM le k 11-PllllzMk- to -mlLW, Wn, k The tightening force Q of 11 produces a horizontal component force F on the dividing surface 4a of the upper half outer ring 5C and the lower half outer ring 5d. .
この水平方向の分力Ｆに対して図中点線表示の反作用に
よる水平方向の分力ＦＯが働くが、この分力Ｆ、Ｆｏに
よって嵌合部１２の接触面１５に押付力が発生する。そ
してこの分力Ｆを分割面４ａの摩擦力以上にするための
角度θは次のようにして決めた。摩擦係数μは経験的に
０．１から０．２なので摩擦力μＰ（Ｐは給付力Ｑによ
る垂直方向の分力）と分力Ｆとは
Ｆ≧μＰ
となシ、摩擦係数μが０．２の場合の角度θは＝ｔａｎ
−” ０．２
＝１１．３゜
となる（第５図から第８図参照）゛。A horizontal component force FO acts as a reaction to this horizontal component force F, indicated by a dotted line in the figure, and a pressing force is generated on the contact surface 15 of the fitting portion 12 by these component forces F and Fo. The angle θ for making this component force F equal to or greater than the frictional force of the dividing surface 4a was determined as follows. Since the friction coefficient μ is empirically from 0.1 to 0.2, the friction force μP (P is the component force in the vertical direction due to the applied force Q) and the component force F are F≧μP, and the friction coefficient μ is 0. The angle θ in case of 2 is = tan
-" 0.2 = 11.3° (see Figures 5 to 8).
このよう柾することによシ分割面４ａの摩擦力μＰ以上
の分力Ｆが上半外輪５Ｃと下半外輪５ｄとの嵌合部１２
の接触面１５に働いて、ボルト〃ロエ時の加工吠化など
によって微小な変形を生じるものであっても変形の生じ
ないように締付は固定されるようになって、ハウジング
７ａの内径と外輪３ａの外径との間がすきまはめで隙間
があっても外輪の軌道面１０に段差が生じないようにな
シ、ころがり軸受の振動、騒音が低減できる。By straightening in this manner, a component force F greater than the frictional force μP of the dividing surface 4a is applied to the fitting portion 12 between the upper half outer ring 5C and the lower half outer ring 5d.
Acting on the contact surface 15 of the bolt, the tightening is fixed so as not to cause deformation even if the bolt is slightly deformed due to machining during processing, etc., and the inner diameter of the housing 7a and There is a clearance fit between the outer ring 3a and the outer diameter of the outer ring 3a, so that even if there is a gap, no step is generated on the raceway surface 10 of the outer ring, and vibration and noise of the rolling bearing can be reduced.
なお、本実施例では凹状溝１２ｂを上半外輪５Ｃに、凸
状突起１２ａを下半外輪５ｄに設けたが、凹状溝１２ｂ
を下半外輪５ｄに、凸状突起１２ａを上半外輪５Ｃに設
けるよりにしてもよい。In this embodiment, the concave groove 12b is provided on the upper half outer ring 5C, and the convex protrusion 12a is provided on the lower half outer ring 5d, but the concave groove 12b
Alternatively, the protrusion 12a may be provided on the lower half outer ring 5d and the convex projection 12a on the upper half outer ring 5C.
上述のように本発明は上半外輪および下半外輪とハウジ
ングとの間に隙間がおっても上半外輪と下半外輪とが変
形を生じないように締付は固定されるようになって、外
輪の軌道面に段差が生じないように、な′シ、・外輪と
／Ｓウジングとがすきまばめされた場合でも振動、騒音
の低減を可能とした外輪分割形ころがシ軸受を得ること
ができる。As described above, in the present invention, even if there is a gap between the upper half outer ring, the lower half outer ring, and the housing, the upper half outer ring and the lower half outer ring are tightened so that they are not deformed.・A bearing with split outer ring rollers that can reduce vibration and noise even when the outer ring and /S housing are loosely fitted to prevent a step from forming on the raceway surface of the outer ring. be able to.
第１図は従来の外輪分割形ころがυ軸受による軸受装置
の正面図、第２図は従来の外輪分割形ころがυ軸受の外
輪の分割面周シの斜視図、第３図は本発明の外輪分割形
ころがシ軸受の一実施例による軸受装置の正面図、第４
図は同じく一実施例の外輪の分割面周υの斜視図、第５
図は同じく一実施例の外輪の分割面周シの正面図、第６
図は第５図の側面図、第７図は第６図のＡ−Ａ線に沿う
矢視図、第８図は同じく一実施例の外輪の分割面の締付
力を示す説明図、第９図は外輪分割形ころがυ軸受の外
輪の変形を示す説明図である。
１・・・内輪、２・・・転動体、３ａ・・・外輪、４ａ
・・・分割面、５Ｃ・・・上半外輪、５ｄ・・・下半外
輪、７ａ・・・／・ウジング、８Ｃ・・・上ハウジング
、８ｄ・・・下ハウジング、１０・・・軌道面（外輪の
内径）、１１・・・ボルト、１２・・・嵌合部（位置決
めガイド）、１２ａ・・・凸状突起、１２ｂ・・・凹状
溝、１３・・・丸ビン（位置決めガイド）、１４・・・
切欠溝、１５・・・接触面。
著、ｙ（７）
７６Fig. 1 is a front view of a bearing device using a conventional split outer ring roller υ bearing, Fig. 2 is a perspective view of the divided surface circumference of the outer ring of a conventional split outer ring roller υ bearing, and Fig. 3 is the invention of the present invention. A front view of a bearing device according to an embodiment of a split outer ring roller bearing, No. 4
The figure is also a perspective view of the dividing surface circumference υ of the outer ring of one embodiment, and the fifth
The figure is also a front view of the divided surface circumference of the outer ring of one embodiment, and
5 is a side view of FIG. 5, FIG. 7 is a view taken along line A-A in FIG. FIG. 9 is an explanatory view showing deformation of the outer ring of a υ bearing with split outer ring rollers. 1... Inner ring, 2... Rolling element, 3a... Outer ring, 4a
...Divided surface, 5C...Upper half outer ring, 5d...Lower half outer ring, 7a...Using, 8C...Upper housing, 8d...Lower housing, 10...Raceway surface (Inner diameter of outer ring), 11... Bolt, 12... Fitting part (positioning guide), 12a... Convex projection, 12b... Concave groove, 13... Round bottle (positioning guide), 14...
Notch groove, 15... contact surface. Author, y(7) 76
Claims (1)
をもって上半分と下半分とに分割された上半外輪および
下半外輪から構成されている外輪分割形ころがシ軸受に
おいで、−前記上半外輪と前記下半外輪とを、前記分割
面に前記上半外輪と前記下半外輪との位置決めガイドを
設け１、かつ前記分割面に対して所定の角度で斜めに挿
入したボルトで締付は固定したことを特徴とする外輪分
割形ころがシ軸受。 ２、 前記位置決めガイドが、前記分割面の軸方向に設
けられた嵌合部と、前記分割面の径方向にその外周側か
ら挿入された丸ビンとで形成されたものである特許請求
の範囲第１項記載の外輪分割形ころがυ軸受。[Claims] 1. An outer ring split type roller comprising an inner ring, a rolling element, and an outer ring, and the outer ring is divided into an upper half and a lower half by a dividing surface, and is composed of an upper half outer ring and a lower half outer ring. In the bearing, - the upper half outer ring and the lower half outer ring are arranged at a predetermined angle with respect to the split surface; A split outer ring type roller bearing characterized by tightening and fixing with bolts inserted diagonally. 2. Claims in which the positioning guide is formed by a fitting part provided in the axial direction of the dividing surface and a round bottle inserted in the radial direction of the dividing surface from the outer peripheral side thereof. The split outer ring roller described in item 1 is a υ bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22421283A JPS60116919A (en) | 1983-11-30 | 1983-11-30 | Rolling bearing having splitted outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22421283A JPS60116919A (en) | 1983-11-30 | 1983-11-30 | Rolling bearing having splitted outer ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60116919A true JPS60116919A (en) | 1985-06-24 |
Family
ID=16810271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22421283A Pending JPS60116919A (en) | 1983-11-30 | 1983-11-30 | Rolling bearing having splitted outer ring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60116919A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01159359A (en) * | 1987-09-28 | 1989-06-22 | Sumitomo Metal Ind Ltd | Bearing supporting device for dipping roll of hot dip coating bath |
| JPH0287118U (en) * | 1988-12-23 | 1990-07-10 | ||
| WO2003062658A1 (en) * | 2002-01-18 | 2003-07-31 | Yamaha Hatsudoki Kabushiki Kaisha | Rolling bearing, and crank shaft bearing |
-
1983
- 1983-11-30 JP JP22421283A patent/JPS60116919A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01159359A (en) * | 1987-09-28 | 1989-06-22 | Sumitomo Metal Ind Ltd | Bearing supporting device for dipping roll of hot dip coating bath |
| JPH0287118U (en) * | 1988-12-23 | 1990-07-10 | ||
| WO2003062658A1 (en) * | 2002-01-18 | 2003-07-31 | Yamaha Hatsudoki Kabushiki Kaisha | Rolling bearing, and crank shaft bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2513443Y2 (en) | Fastening device for shaft and rotating body | |
| US20030103704A1 (en) | Bearing retention assembly having cam chamfered bearing race ring | |
| JP3892989B2 (en) | Ultra-thin type rolling bearing and its cage | |
| JP2709269B2 (en) | Friction type fastener of shaft and rotating body | |
| US20080089628A1 (en) | Wheel Support Bearing Assembly | |
| KR100450712B1 (en) | Wheel hub bearing unit suitable for cold forming coupling to brake member. | |
| JP2586503B2 (en) | Bearing mounting device | |
| JPS60116919A (en) | Rolling bearing having splitted outer ring | |
| US10584742B2 (en) | Rolling bearing | |
| JP4779953B2 (en) | Bearing unit manufacturing method and bearing unit | |
| US5405201A (en) | Alignment ring for split bearing race and method of assembly | |
| JP2583628Y2 (en) | Bearing washers for split bearings | |
| JP6561523B2 (en) | Bearing device and fixing plate for bearing device | |
| JP2004125088A (en) | Super-thin rolling bearing, and retainer for the same | |
| JP4156623B2 (en) | Ultra-thin type rolling bearing and its cage | |
| US4267913A (en) | Clutch release device | |
| JP2005069350A (en) | Tapered roller bearing | |
| JP2005133869A (en) | Tapered roller bearing for transmission | |
| JP2002227852A (en) | Split rolling bearing device | |
| JPH0112966B2 (en) | ||
| JP2597520Y2 (en) | Anti-creep device for rolling bearings | |
| JP4576704B2 (en) | Rolling bearing unit for wheel support | |
| JP2005114029A (en) | Split rolling bearing | |
| JPS6298025A (en) | Cylindrical roller bearing | |
| JP2574188Y2 (en) | Pin |