JP2004278660A - Outer ring revolving type rolling bearing - Google Patents

Outer ring revolving type rolling bearing Download PDF

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Publication number
JP2004278660A
JP2004278660A JP2003070838A JP2003070838A JP2004278660A JP 2004278660 A JP2004278660 A JP 2004278660A JP 2003070838 A JP2003070838 A JP 2003070838A JP 2003070838 A JP2003070838 A JP 2003070838A JP 2004278660 A JP2004278660 A JP 2004278660A
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Japan
Prior art keywords
ring
outer ring
rolling
bearing
side plate
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Pending
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JP2003070838A
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Japanese (ja)
Inventor
Takeshi Nomura
剛 野村
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Nsk Ltd
日本精工株式会社
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Priority to JP2003070838A priority Critical patent/JP2004278660A/en
Publication of JP2004278660A publication Critical patent/JP2004278660A/en
Application status is Pending legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/66Special parts or details in view of lubrication
    • F16C33/6637Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/6677Details of supply of the liquid to the bearing, e.g. passages or nozzles from radial inside, e.g. via a passage through the shaft and/or inner ring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/76Sealings of ball or roller bearings
    • F16C33/78Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • F16C19/28Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with two or more rows of rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outer ring revolving type rolling bearing having a seal structure that can always supply lubricant evenly to the rolling bodies on both sides and can prevent the invasion of a rolling oil etc. from the outside. <P>SOLUTION: In the outer ring revolving type rolling bearing having an inner ring fixed to an outer ring and a stationary shaft, a double row rolling body arranged between the inner ring and the outer ring and a lubricant supply hole formed between the rows of the double row rolling bodies, the seal structure is provided such that an exhaust hole communicating to outside is provided on the side to the external of the bearing of the double row rolling bodies and a side plate interposing a seal body to a fitting face of the side plate on the inner circumference face of the outer ring, and the seal structure consisting of a V ring seal that is sliding touched to the side plate and fixed to the inner ring is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】 [0001]
【発明の属する技術分野】 BACKGROUND OF THE INVENTION
本発明は、内輪を固定し、外輪を回転させる外輪回転型転がり軸受であって、特に鉄鋼材による板材等を製造する多段式圧延機のバッキングロールに用いる外輪回転型転がり軸受に関する。 The present invention, the inner ring is fixed to a wheel rotating type rolling bearing that rotates the outer ring, in particular to wheel rotating type rolling bearing to be used for the backing roll of the multi-stage rolling mill to produce a sheet or the like by the steel material.
【0002】 [0002]
【従来の技術】 BACKGROUND OF THE INVENTION
一般に、鉄鋼材による板材を製造する圧延機は、圧延時に鉄鋼材を圧迫挟持して圧延するワークロールの軸方向の撓みを防止して均一な厚みの板材を得るために、ワークロールの外周面を転動自在に支える一または複数段の中間ロールと、この中間ロールをその外側で支えてワークロールの撓みを防止するバッキングロールからなる多段式の圧延機が多く用いられる。 In general, a rolling mill to produce sheet by steel materials, for obtaining the plate material having a uniform thickness to prevent the deflection of the axial direction of the work roll rolling and pressing sandwich the steel material at the time of rolling, the outer circumferential surface of the work roll an intermediate roll in one or more stages to support rollably and the intermediate rolls supporting at its outer multi-stage rolling mill comprising a backing roll for preventing deflection of the work rolls is often used.
【0003】 [0003]
このバッキングロールは、静止しているバッキングロール軸に複数の外輪回転型複列円筒ころ軸受を設置し、この外輪を中間ロールに押圧して中間ロールの外側への変形を防止し、これによりワークロールの撓みを防止している。 The backing roll is to install a plurality of outer ring rotating type double row cylindrical roller bearing backing roll shaft being stationary, to prevent deformation of the outer intermediate roll to press the outer ring to the intermediate rolls, thereby the workpiece so as to prevent the deflection of the roll.
このようなバッキングロールに設置する従来の外輪回転型円筒ころ軸受は、2列に配置された円筒ころの外側に、静止している内輪に2個のシールリングを設け、これを外輪にOリングを介在させて取付け、外輪とともに回転する受け部材に摺接させて軸受の内部と外部をシールして圧延油の侵入を防止すると共に、2列に配置された円筒ころの中央部に設けた潤滑油供給孔にオイルミスト状の潤滑油を供給し、円筒ころとシール構造の間の内輪に設けた潤滑油回収孔から潤滑油を回収して潤滑を行っている(例えば、特許文献1参照。)。 Conventional rotating outer ring type cylindrical roller bearing installed in such a backing roll, the outer rollers arranged cylinders in two rows, two sealing rings arranged on the inner ring at rest, O-ring it to outer ring mounting with intervening, together by sliding contact with the receiving member which rotates together with the outer ring to seal the inside and outside of the bearing to prevent the entry of the rolling oil, it is provided in a central portion of the roller arranged cylinders in two rows lubrication the oil supply hole to supply oil mist lubricating oil from the lubricating oil recovery holes provided in the inner ring between the cylindrical roller and the seal structure to recover the lubricating oil is performed lubrication (e.g., see Patent Document 1. ).
【0004】 [0004]
【特許文献1】 [Patent Document 1]
実公平7−52425号公報(第2頁、第2図) Actual fair 7-52425 JP (page 2, FIG. 2)
【0005】 [0005]
【発明が解決しようとする課題】 [Problems that the Invention is to Solve
しかしながら、上述した従来の技術においては、転動体としての円筒ころの内側に設けた潤滑油供給孔からオイルミストまたはオイルエアにより供給したミスト状の潤滑油を静止している内輪に設けた孔長の長い潤滑油回収孔から回収するようにしているため、液状になった潤滑油が時として柱状となってその表面張力および柱状現象による液柱の側面の摩擦力により潤滑油回収孔を閉塞してしまうことがある。 However, in the conventional technique described above, rolling from the lubricating oil supply holes provided on the inside of the cylindrical rollers as the moving body hole length provided on the inner ring of stationary mist of lubricating oil supplied by the oil mist and oil air because you have to recover from a long lubricant recovery hole, to close the lubricating oil recovery hole by a frictional force of the side surface of the liquid column due to the surface tension and the columnar phenomenon lubricating oil became liquid is sometimes a columnar it may be put away.
【0006】 [0006]
この閉塞が、一方の潤滑油回収孔で発生した場合には、両側の円筒ころへの潤滑油の供給の均等性が損なわれて閉塞された側の円筒ころへの潤滑油の供給が不足し、両方の潤滑油回収孔で発生した場合には、潤滑油の供給が停止して軸受寿命を低下させる恐れがあるという問題がある。 This occlusion, when occurring in one of the lubricating oil recovery hole is insufficient supply of lubricating oil to both sides uniformity supply of lubricating oil to the cylindrical roller is impaired of cylindrical rollers of occluded side , in the event of both the lubricant recovery hole, there is a problem that the supply of lubricating oil which may lower the bearing lifetime is stopped.
本発明は、上記の問題点を解決するためになされたもので、転動体に常に均等に潤滑油を供給することができ、かつ外部からの圧延油等の侵入を防止することができるシール構造を有する外輪回転型転がり軸受を提供することを目的とする。 This invention has been made to solve the above problems, the seal structure rolling elements always uniformly can be supplied to the lubricating oil to, and can be prevented from entering the rolling oil or the like from the outside and to provide a wheel rotating type rolling bearing having.
【0007】 [0007]
【課題を解決するための手段】 In order to solve the problems]
本発明は、上記課題を解決するために、外輪と静止軸に固定された内輪と前記外輪と内輪との間に複数列に配設された転動体と該複数列の転動体の列間に形成した潤滑油供給口とを備えた外輪回転型転がり軸受において、前記複数列の転動体の軸受外部に面した側に、外部と連通する排気孔を有し、前記外輪の内周面に設けた側板嵌合面にシール体を介在させて嵌合する側板と、該側板に摺接し、前記内輪に固定したVリングシールとからなるシール構造を設けたたことを特徴とする。 The present invention, in order to solve the above problems, between rows of rolling elements of the rolling element and the plurality sequences arranged in a plurality of rows between the outer ring and the fixed inner ring to the stationary shaft and the outer ring and the inner ring in the outer ring rotating type rolling bearing and a forming lubricating oil supply port to the side facing the outside of the bearing of the rolling element of said plurality of rows, an exhaust hole communicating with the outside, provided on the inner peripheral surface of the outer ring and side plates for fitting a sealing member is interposed to the side plate fitting surfaces were, sliding contact with the side plate, characterized in that provided a seal structure comprising a V-ring seal which is fixed to the inner ring.
【0008】 [0008]
【発明の実施の形態】 DETAILED DESCRIPTION OF THE INVENTION
以下に、図面を参照して本発明による外輪回転型転がり軸受の実施の形態について説明する。 Hereinafter, with reference to the drawings will be described embodiments of the outer ring rotating type rolling bearing according to the present invention.
第1実施の形態例図1は本発明の実施の形態を示す断面図、図2は図1のA部拡大図、図3は実施の形態の円筒ころ軸受を適用する多段式圧延機を示す概略側面図、図4は実施の形態の円筒ころ軸受を適用したバッキングロール軸を示す概略正面図である。 Sectional view embodiment Figure 1 of a first embodiment is shown an embodiment of the present invention, FIG. 2 is enlarged view of a portion A of FIG 1, FIG 3 shows a multi-stage rolling machine according to the cylindrical roller bearing of the embodiment schematic side view, FIG. 4 is a schematic front view showing the backing roll axis of applying the cylindrical roller bearing of the embodiment.
【0009】 [0009]
図3において、1は多段式圧延機のハウジングであり、圧延前の鉄鋼材等を挿入する挿入口1aと圧延後の板材を排出する排出口1bが設けられている。 3, 1 is the housing of a multi-stage rolling mill, discharge opening 1b is provided for discharging the sheet after rolling with insertion port 1a for inserting the steel material or the like before rolling.
2は一対のワークロールであり、挿入口1aから挿入されパスライン3に沿って供給された鉄鋼材等を圧迫挟持して連続的に圧延し、排出口1bからハウジング1の外部へ排出する。 2 is a pair of work rolls, the inserted ferrous material or the like which is supplied along the pass line 3 from the insertion port 1a by pressing pinching continuously rolled, to be discharged from the outlet 1b to the outside of the housing 1.
【0010】 [0010]
4aは第1の中間ロールであり、ワークロール2の外周面を複数の第1の中間ロール4aにより回転自在に支持する。 4a is a first intermediate rolls, to rotatably support the outer circumferential surface of the work roll 2 by a plurality of first intermediate rolls 4a.
4bは第2の中間ロールであり、第1の中間ロール4aの外周面を複数の第2の中間ロール4bにより回転自在に支持する。 4b is a second intermediate rolls, rotatably supported by the second intermediate rolls 4b the outer peripheral surfaces of the plurality of first intermediate rolls 4a.
5は第2の中間ロール4aの周囲に設けられる複数のバッキングロールのバッキングロール軸である。 5 is a backing roll axis of the plurality of backing roll provided around the second intermediate rolls 4a.
【0011】 [0011]
図4において、6はギアであり、サドル8に設けられた偏芯リングを回転させ、バッキングロール軸5の軸芯を変位させる。 4, 6 is a gear, to rotate the eccentric ring provided on the saddle 8, to displace the axis of the backing roll axis 5.
9は軸内潤滑油供給孔であり、バッキングロール軸5の軸芯を軸方向に貫通して設けられ、軸内潤滑油供給孔9とバッキングロール軸5の外周面に設けられた潤滑油グルーブ10との間を半径方向に連通する放射連通孔9aによって外部からオイルミストまたはオイルエアにより供給されたミスト状の潤滑油を潤滑油グルーブ10へ導く。 9 is-shaft lubricant supply hole, provided through the axis of the backing roll axis 5 in the axial direction, the lubricating oil grooves provided on the outer peripheral surface of the shaft in the lubricating oil supply hole 9 and the backing roll axis 5 directing oil mist or mist lubricating oil supplied by oil-air from the outside by the radiation passage 9a communicating with the radially between the 10 into the lubricating oil grooves 10.
【0012】 [0012]
11は外輪回転型転がり軸受としての外輪回転型複列円筒ころ軸受(単に、複列円筒ころ軸受という。)であり、バッキングロール軸5に複数設置される。 11 outer ring rotating type double row cylindrical roller bearing as rotating outer ring type rolling bearing (simply. Of double row cylindrical roller bearing), and is more disposed to the backing roll axis 5.
図1において、12は転動体としての複列円筒ころ軸受11の円筒ころであり、合金鋼等の鋼材で円筒状に成形し、その底面を対向させて2列に配置し、互いの衝突を避けるために保持器13に保持して等ピッチに複数配置する。 1, 12 is a cylindrical roller of double row cylindrical roller bearing 11 as the rolling elements, and formed into a cylindrical shape steel such as alloy steel, and place the bottom in two rows are opposed, the collision of one another a plurality arranged in an equal pitch and held in the retainer 13 to avoid.
【0013】 [0013]
14は外輪であり、合金鋼等の鋼材で製作し、その内周面に円筒ころ12が転動する2列の外輪転動面14aと内周面の中央に円筒ころ12の軸方向の移動を制限する外輪鍔部14bを形成し、その外周面を円筒面に成形し、第2の中間ロール4bを押圧して第2の中間ロール4bを回転自在に支持させる。 14 is an outer ring, the movement of the alloy steel produced in steel, among cylindrical rollers 12 on the peripheral surface in the axial direction of the cylindrical roller 12 at the center of the inner peripheral surface and the outer wheel rotation surface 14a of the two rows of rolling thereof forming outer ring flange portion 14b to restrict, by shaping the outer peripheral surface the cylindrical surface, thereby rotatably supporting the second intermediate rolls 4b presses the second intermediate rolls 4b.
15は一対の内輪であり、合金鋼等の鋼材で製作し、そのそれぞれの外周面に円筒ころ12が転動する内輪転動面15aと内輪転動面15aの外側に円筒ころ12の軸方向の移動を制限する内輪鍔部15bを形成し、その内周面を円筒面に成形し、静止状態のバッキングロール軸5に嵌合して固定する。 15 are a pair of inner rings, made of steel, such as alloy steel, the axial direction of the outside cylindrical rollers 12 of wheel rotation surface 15a and the inner wheel rotation surface 15a of the respective cylindrical rollers 12 on the outer peripheral surface rolls moving to form an inner ring flange portion 15b for limiting of shaping the inner peripheral surface of the cylindrical surface, it is fitted and fixed to the backing roll axis 5 of the rest.
【0014】 [0014]
また、一対の内輪15は互いに当接させて配置し、そのそれぞれの当接面には、半円弧状またはV字状の半径方向に伸張する潤滑油溝と、当接面と内周面および外周面の角部にテーパ面を設け、これにより内輪15を当接したときに、2列の円筒ころ12の中央部に潤滑油供給孔16と内側グルーブ17a、外側グルーブ17bを形成する。 The pair of inner rings 15 and placed in contact with each other, that the respective contact surface, and the lubricating oil groove extending in a radial direction of the semi-circular or V-shaped, inner peripheral surface and the abutment surface a tapered surface provided in corner portions of the outer peripheral surface, thereby when the inner ring 15 abuts, lubricating oil supply holes 16 and the inner groove 17a at the central portion of the cylindrical rollers 12 of the two rows, to form the outer groove 17b.
【0015】 [0015]
18は浮輪であり、合金鋼等の鋼材で断面形状を内側に凸部を有する凸形状とし、外周面の軸方向の幅を外輪鍔部14bの軸方向の幅と略同等とし、その凸部の内周面の幅を内輪15の内周面に形成される外側グルーブ17bの幅より小さくし、その凸部の両側の側面を内周面の幅から半径方向に広がるテーパ面として成形する。 18 is Ukiwa, a convex shape having a convex part a cross-sectional shape on the inside of steel, such as alloy steel, the axial width of the outer circumferential surface is substantially equal to the axial width of the outer ring flange portion 14b, the convex portion the width of the inner circumferential surface is smaller than the width of the outer groove 17b is formed on the inner peripheral surface of the inner ring 15, forming the sides of the side surface of the convex portion from the width of the inner peripheral surface a tapered surface extending radially of.
【0016】 [0016]
この浮輪18は、内輪15の側で2列の円筒ころ12の間に配置され、内輪鍔部15b、外輪鍔部14bと連携してそれぞれの列の円筒ころ12の軸方向の動きを制限すると共に円筒ころ12の斜行を防止する。 The Ukiwa 18 is disposed between the two rows cylinder rollers on the side 12 of the inner ring 15, to limit axial movement of the inner ring flange portion 15b, the cylindrical rollers 12 of each column in conjunction with the outer ring flange portion 14b preventing the skew of the cylindrical roller 12 with.
図2において、21は側板であり、円筒ころ12のそれぞれの外側に配置し、側板21の外周面にOリング溝21aを形成してシール体としてのOリング22aを装着し、外輪14の内周面に形成した側板嵌合面14cにOリング22aを介在させて取付け、外輪14の回転に伴って回転する。 2, 21 is a side plate, and disposed in each of the outer cylindrical rollers 12, to form an O-ring groove 21a on the outer peripheral surface of the side plate 21 is mounted an O-ring 22a as a seal member, of the outer ring 14 mounting with intervening O-ring 22a to the side plate fitting surface 14c formed in the peripheral surface, it rotates with the rotation of the outer ring 14.
【0017】 [0017]
側板21には、側板21を軸方向に貫通して複列円筒ころ軸受11の外部と連通する一または複数、例えば8個の等ピッチで配置した排気孔23を設ける。 The side plates 21, one or more of communicates with the outside of the double row cylindrical roller bearing 11 through the side plate 21 in the axial direction, is provided an exhaust hole 23 arranged for example in eight equal pitch.
また、排気孔23の半径方向の位置は、外輪14の回転が停止したときに下側に溜まった複列円筒ころ軸受11の内部の潤滑油の油面(図1に示す2点鎖線B)より上方に位置するように設定する。 Also, the radial position of the exhaust hole 23, the internal surface of the oil in the double row cylindrical roller bearing 11 accumulated on the lower side when the rotation of the outer ring 14 is stopped (the two-dot chain line shown in FIG. 1 B) set so as to be positioned more upward.
【0018】 [0018]
24は止め輪であり、外輪14の内周面に設けた止め溝に装着してそのバネ力により固定し、側板21が軸方向に抜け出ることを防止する。 24 is a retaining ring, and attached to a stop groove provided on the inner peripheral surface of the outer ring 14 is fixed by its spring force, to prevent the side plate 21 comes out axially.
25はシールド板であり、バネ鋼等の鋼板をドーナツ板状に成形し、その内側を軸方向に曲折して嵌合部25aを形成し、その外側を軸方向に湾曲させて縁部25b形成して製作する。 25 is a shielding plate, by forming a steel plate such as spring steel into a donut-shaped, the fitting portion 25a formed by bending the axially inward edge portion 25b formed by curving the outside in the axial direction to be fabricated.
【0019】 [0019]
また、シールド板25は、止め輪24の外側に設置され、その嵌合部25aの内周面を内輪15に設けたシールド板嵌合面15cに圧入等により嵌合して固定し、その縁部25bの外周面と外輪14の止め輪挿入穴14dの間に外輪14の回転時に互いが接触しない程度の隙間を形成する。 The shield plate 25 is stopped is provided on the outside of the wheel 24, the inner peripheral surface of the fitting portion 25a fitted and fixed by press-fitting or the like to shield plate fitting surface 15c provided on the inner ring 15, the edges each other during the rotation of the outer ring 14 between the retaining ring insertion hole 14d of the outer circumferential surface and the outer ring 14 of the part 25b forms a gap so as not to contact.
26はVリングシールであり、天然ゴムや合成ゴム等の弾性材料で略V字形の断面形状を有するリング状のシールであって、シールド板25の嵌合部25aの外周面に接着または圧入等により固定し、リップ部26aを側板21の内輪15側で側板21の外側に設けたシール面21bに摺接させて設置する。 26 is a V-ring seal, a natural rubber and a ring-shaped seal having a cross-sectional shape of substantially V-shaped elastic material of synthetic rubber, adhesive or press fit on the outer peripheral surface of the fitting portion 25a of the shield plate 25 or the like fixed by, installed by sliding contact with the sealing surface 21b which is provided on the outside of the side plate 21 a lip 26a in the inner ring 15 side of the side plate 21.
【0020】 [0020]
このように、静止体である内輪15に固定したVリングシール26のリップ部26aが、回転体である側板21のシール面21bに摺接して接触式シールを構成し、これによりVリングシール26に作用する遠心力を排除して常に安定した押付け力によるシール機能を発揮する接触式シールとすることができる。 Thus, the lip portion 26a of the V-ring seal 26 which is fixed to the inner ring 15 is a stationary body, sliding contact forms a contact seal sealing surface 21b of the side plate 21 is a rotating body, thereby V-ring seal 26 it can be a contact-type seals that exert a sealing function by always stable pressing force to eliminate the centrifugal force acting on.
また、円筒ころ12の軸受外部に面した側に側に設けた側板21と、この側板21に摺接するVリングシール26と、このVリングシール26を内輪15に固定するシールド板25と、外輪14との間に介在させた側板21の外周面に設けたシール体としてのOリング22aと、側板21の排気孔23とにより本実施の形態のシール構造を構成する。 Further, a side plate 21 provided on the side on the side facing the outside of the bearing of the cylindrical roller 12, a V-ring seal 26 in sliding contact with the side plate 21, a shield plate 25 for fixing the V-ring seal 26 to the inner ring 15, outer ring and O-ring 22a as a seal member provided on the outer peripheral surface of the side plate 21 which is interposed between the 14, constituting the sealing structure of the present embodiment by the exhaust hole 23 of the side plate 21.
【0021】 [0021]
なお、上記は側板21がシール体としてのOリング溝21aを介在させて外輪14の側板嵌合面14cに嵌合させるとして説明したが、シール体および側板21は図5(a)〜(c)に示す態様であってもよい。 The above is the side plate 21 has been described as O by interposing a ring groove 21a is fitted into the side plate fitting surface 14c of the outer ring 14 as a seal member, the seal member and the side plate 21 is FIG. 5 (a) ~ (c or it may be a mode shown in).
なお、上記実施の形態例と同様の部分は、同一の符号を付してその説明を省略する。 The same parts as embodiment of the above embodiment, the description thereof is omitted are denoted by the same reference numerals.
【0022】 [0022]
図5において、(a)の態様は、シール体は上記と同様のOリング22aであるが、Oリング溝21aはその円筒ころ12側の溝壁部を省略した形状に成形し、省略した溝壁部は、図2に示す外輪14の外輪転動面14aと側板嵌合面14cとの段部の側面が代用するように止め輪24によって組付ける。 5, aspects of the (a) is the seal body is the same O-ring 22a and the, O-ring groove 21a is formed into a shape which is omitted groove wall portion of the cylindrical roller 12 side, is omitted grooves wall, assembled by snap ring 24 as the side surface of the stepped portion of the outer wheel rotation surface 14a and the side plate fitting surface 14c of the outer ring 14 shown in FIG. 2 is substituted.
(b)の態様は、(a)の態様と同様の側板21のOリング溝21aに、天然ゴムや合成ゴム等の弾性材料で製作したシール体としての角リング22bを装着した例である。 Aspect of (b) is an example in which the O-ring groove 21a aspects similar to the side plate 21, fitted with a square ring 22b as a sealing body made of an elastic material such as natural rubber or synthetic rubber (a).
【0023】 [0023]
なお、角リング22bは弾性を有する樹脂材料で成形して接着するようにしてもよく、上記と同様の弾性材料または樹脂材料をインサート成形等により一体に成形するようにしてもよい。 Incidentally, square ring 22b may be bonded by molding a resin material having elasticity, it may be formed integrally by insert molding or the like a similar elastic material or a resin material as described above.
(c)の態様は、側板21の外周面と円筒ころ12側の側面にL字状の断面形状を有するシール体としてのL字リング22cを(b)の態様と同様の弾性材料または樹脂材料をインサート成形等により一体に成形し、(b)の態様に示した側板21と角リング22bで形成される外形形状と略同等にした例である。 Aspect of (c), the same elastic material or resin material and aspects of the L-shaped ring 22c as a sealing member having an L-shaped cross section on the side surface of the outer peripheral surface and the cylindrical roller 12 side of the side plate 21 (b) the molded integrally by insert molding or the like, it is an example of substantially equal to the outer shape formed by the side plate 21 and the square ring 22b shown in embodiments of the (b).
【0024】 [0024]
上記のように(a)〜(c)に示す態様の側板21は、その軸方向の長さを図1に示した側板21に較べて省略したOリング溝21aの溝壁部の長さ分短縮することができ、複列円筒ころ軸受11の軸方向長さを短縮して複列円筒ころ軸受11の小型化を図ることができる。 Side plates 21 of the embodiment shown in the above (a) ~ (c) is the length of the groove walls of the O-ring groove 21a is omitted in comparison with the side plate 21 shown the length of the axial direction in FIG. 1 can be shortened, it is possible to reduce the size of the double row cylindrical roller bearing 11 to reduce the axial length of the double row cylindrical roller bearing 11.
また、複列円筒ころ軸受11の軸方向長さを同一とした場合には、円筒ころ12の軸方向長さを伸張させることが可能になり、複列円筒ころ軸受11の定格荷重を向上させることができる。 Further, when the same axial length of the double row cylindrical roller bearing 11, it is possible to extend the axial length of the cylindrical rollers 12, to improve the load rating of the double row cylindrical roller bearing 11 be able to.
【0025】 [0025]
なお、シール体としてのOリング22aの設置は、側板21の外周面の円筒ころ12側の角部に面取を施し、角付け式とするようにしてもよい。 Incidentally, the installation of O-ring 22a as a seal member is chamfered at a corner of the cylindrical roller 12 side of the outer peripheral surface of the side plate 21, it may be a squaring formula.
上記の構成の作用について説明する。 A description of the operation of the above configuration.
複列円筒ころ軸受11を多段式圧延機のバッキングロールとして用いる場合は、バッキングロール軸5に複数の複列円筒ころ軸受11の内輪15を嵌合して1本のバッキングロールとし、複数のバッキングロールを第2の中間ロール4bの周囲に配置して複列円筒ころ軸受11の外輪14を第2の中間ロール4bに当接させる。 When using the double row cylindrical roller bearing 11 as a backing roll of a multi-stage rolling mill, fitted inner ring 15 of a plurality of double row cylindrical roller bearing 11 to the backing roll axis 5 as a single backing roll, a plurality of backing the rolls arranged around the second intermediate rolls 4b are brought into contact with the outer ring 14 of the double row cylindrical roller bearing 11 to the second intermediate rolls 4b.
【0026】 [0026]
そして、外輪14をサドル8に設けた偏芯リングをギア6により回転させて第2の中間ロール4bに押圧し、一対のワークロール2間の間隔を所定の間隔に保持すると共に圧延時にワークロール2に発生する軸方向の撓みを防止する。 The work rolls during rolling with the eccentric ring provided with an outer ring 14 on the saddle 8 is pressed against the second intermediate rolls 4b is rotated by a gear 6, which holds the distance between the pair of work rolls 2 at a predetermined distance to prevent axial deflection occurring 2.
一対のワークロール2による鉄鋼材等の冷間圧延時には、ワークロール2や各ロール間の潤滑や冷却および圧延作業の円滑化を図るために比較的粘度の低い多量の圧延油がハウジング1内に散布される。 During cold rolling of such ferrous material by the pair of work rolls 2, a relatively low viscosity large amount of rolling oil in order to facilitate lubrication and cooling and rolling work between the work rolls 2 and the roll into the housing 1 It is sprayed.
【0027】 [0027]
一方、複列円筒ころ軸受11の内部には、その潤滑のためにオイルミストまたはオイルエアによる比較的粘度の高いミスト状の潤滑油が、加圧されたエアによりバッキングロール軸5の軸内潤滑油供給孔9、放射連通孔9a、潤滑油グルーブ10、一対の内輪15により形成された内側グルーブ17aおよび潤滑油供給孔16を経由して供給され、円筒ころ12と外輪転動面14a、内輪転動面15aとの間や円筒ころ12と保持器13との間等を潤滑する。 On the other hand, inside the double row cylindrical roller bearing 11, the oil mist or relatively high viscosity mist of the lubricating oil by the oil air is, in-shaft lubricant backing roll shaft 5 by pressurized air for its lubrication supplying hole 9, the radiation passage 9a, lubricating oil grooves 10 is supplied via the inner groove 17a and the lubricating oil supply hole 16 formed by a pair of inner rings 15, the cylindrical roller 12 and the outer wheel rotation surface 14a, the inner rotary It lubricates between the like and between the cylindrical roller 12 and cage 13 with sliding surface 15a.
【0028】 [0028]
この時、浮輪18の凸部の内周面の幅は、外側グルーブ17bの幅より小さく、かつ凸部の両側の側面はテーパ面となっており、また側板21に設けた排気孔23は円筒ころ12の両側に通気抵抗が同等となるように同等に開口し、軸受内部の加圧されたエアを均等に排出するように構成されているので、供給されたミスト状の潤滑油は両側の円筒ころ12へ均等に配分される。 In this case, the width of the inner peripheral surface of the convex portion of the Ukiwa 18, smaller than the width of the outer groove 17b, and both sides of the side surface of the protrusion is a tapered surface, also the exhaust hole 23 provided in the side plate 21 is a cylindrical rollers 12 on both sides equally open to airflow resistance is equal, which is configured to evenly discharge the pressurized air in the bearing, supplied misty lubricant on both sides of the It is uniformly distributed to the cylindrical roller 12.
【0029】 [0029]
この場合に、外輪14の下側に溜る潤滑油の油面は外輪14の回転による遠心力により図1に示す2点鎖線Bより下方に位置するようになるため油面で排気孔23を塞ぐことはなく、また側板21に設けた排気孔23は横穴であり、かつ側板21と共に回転する排気孔23であるので、液状となって排気孔23付近に付着した潤滑油は遠心力により外輪14側に振り飛ばす油切り効果を発揮し、排気孔23に付着した液状の潤滑油もその潤滑油が排気孔23の開口を膜で覆うためには表面張力が遠心力に打勝つ必要があり、柱状現象の発生を防止する。 In this case, the oil level of the lubricating oil accumulated in the bottom of the outer ring 14 blocks the vent hole 23 in the oil level to become so positioned below the two-dot chain line B in FIG. 1 by the centrifugal force generated by the rotation of the outer ring 14 never, exhaust hole 23 provided in the side plate 21 also is the lateral hole, and since the exhaust hole 23 which rotates together with the side plates 21, the lubricating oil adhered to the vicinity of the exhaust hole 23 becomes a liquid outer ring by a centrifugal force 14 exert oil thrower effect fly swing to the side, for the lubricant liquid adhering to the exhaust hole 23 in which the lubricating oil to cover the opening of the exhaust holes 23 in the film must surface tension overcomes the centrifugal force, to prevent the occurrence of columnar phenomenon.
【0030】 [0030]
この結果、排気孔23から外部へ排出される潤滑油は、エア中に浮遊する潤滑油の微小な霧または蒸気のみとなり、極微量の潤滑油が多量の圧延油と混合するものの圧延する製品への影響は無視できる程度になる。 As a result, the lubricating oil discharged from the exhaust hole 23 to the outside, only becomes fine mist or vapor of the lubricating oil suspended in the air, the product of rolling those trace amounts lubricant is mixed with a large amount of rolling oil the impact will be negligible.
また、ハウジング1内に散布された圧延油の複列円筒ころ軸受11の内部への侵入は、圧延油の油滴の侵入をシールド板25により防止し、霧状または蒸気となった圧延油の側板21の排気孔23からの侵入を上記の外部に排出される加圧されたエアにより妨げ、側板21の外周面からの侵入を外輪の側板嵌合部14cとの間に介在させたシール体(本実施の形態ではOリング22a)により遮断し、その内周面からの侵入を側板21のシール面21bと摺接する内輪15に固定したVリングシール26により遮断して粘度の高い潤滑油への粘度の低い圧延油の混入による潤滑不良を防止する。 The internal to the entry of the double row cylindrical roller bearing 11 of the rolling oil which has been sprayed in the housing 1, the intrusion of the oil droplets of rolling oil is prevented by the shield plate 25, the mist or rolling oil became vapor prevent the intrusion from the exhaust hole 23 of the side plate 21 by the air pressurized and is discharged to the external, the seal member is interposed between the side plate engaging portion 14c of the outer ring from entering from the outer peripheral surface of the side plate 21 (in this embodiment O-ring 22a) is blocked by, of which the penetration of the peripheral surface of viscosity blocked by V-ring seals 26 fixed to the sealing surface 21b in sliding contact with the inner ring 15 of the side plate 21 higher into the lubricating oil to prevent poor lubrication due to entry of low rolling oil viscosity of.
【0031】 [0031]
以上により、複列円筒ころ軸受11の良好な潤滑状態を維持して複列円筒ころ軸受11の寿命低下を防止する。 Thus, to prevent the reduction of the service life of the double row cylindrical roller bearing 11 to maintain a good lubrication state of the double row cylindrical roller bearing 11.
以上説明したように、本実施の形態では、円筒ころの両側に配置した側板に排気孔を設けて加圧されたエアを排出し、この側板をOリングとVリングシールにより静止した内輪と回転する外輪との間を遮断したことによって、圧延油の侵入を防止することができると共に良好な潤滑状態を維持して複列円筒ころ軸受の寿命の低下を防止することができる。 As described above, in this embodiment, the side plate disposed on opposite sides of cylindrical rollers provided with an exhaust hole to discharge the pressurized air, rotating the inner ring and stationary side plate by an O-ring and the V-ring seals by blocked between the outer ring, it is possible to prevent a reduction in the service life of the double row cylindrical roller bearing to maintain a good lubrication state can be prevented from entering the rolling oil.
【0032】 [0032]
また、外輪と共に回転する側板に同等の開口を有する排気孔を設けたことによって、排気孔が潤滑油により閉塞されることを防止して、複列円筒ころ軸受の両側の円筒ころに常に均等に潤滑油を供給することができる。 Further, by providing the vent hole having an equivalent opening in the side plate which rotates with the outer ring, the exhaust hole is prevented from being closed by the lubricating oil, always evenly to the cylindrical rollers of each side of the double row cylindrical roller bearing it is possible to supply the lubricating oil.
なお、上記の実施の形態例では、本発明を外輪回転型複式ころ軸受に適用した場合について説明したが、玉軸受や円錐ころ軸受等の転がり軸受であって、外輪回転型の転がり軸受であればどのような転がり軸受であっても本発明を適用することができる。 In the embodiment of the above embodiment, the present invention has been described as applied to the outer ring rotating type double roller bearing, a rolling bearing such as a ball bearing or a tapered roller bearing, there by rotating outer ring type of the rolling bearing whatever the rolling bearing can also be applied the present invention if.
【0033】 [0033]
また、本発明を適用する外輪回転型転がり軸受は2列に限らず、3列以上の外輪回転型転がり軸受であってもよい。 Further, outer ring rotating type rolling bearing to which the present invention is applied is not limited to two rows may be three or more rows of rotating outer ring type rolling bearing. この場合に潤滑油の供給は各列間に供給するようにしてもよく、中央の2列の間にのみ供給するようにしてもよい。 The supply of lubricating oil when may be supplied between each column, may be supplied only during the middle of the two rows.
以下に、外輪回転型の複式円錐ころ軸受に適用した場合の例を示す。 Hereinafter, an example of applying the double tapered roller bearing of the outer ring rotating type.
図6は本発明を適用した複式円錐ころ軸受を示す半断面図である。 6 is a half cross-sectional view showing a double tapered roller bearing according to the present invention.
【0034】 [0034]
なお、上記実施の形態例と同様の部分は、同一の符号を付してその説明を省略する。 The same parts as embodiment of the above embodiment, the description thereof is omitted are denoted by the same reference numerals.
31は外輪回転型転がり軸受としての外輪回転型複列円錐ころ軸受(単に、複列円錐ころ軸受という。)である。 31 is the outer race rotating type double row tapered roller bearing as a rotating outer ring type rolling bearing (simply. Of double row tapered roller bearing).
本例の転動体としての円錐ころ32の両側には、上記実施の形態例と同様に側板21とVリングシール26とシールド板25とシール体としてのOリング22aと側板21の排気孔23からなるシール構造が設けられる。 On either side of the tapered rollers 32 as rolling elements of the present example, the exhaust hole 23 of the O-ring 22a and the side plate 21 as embodiment and similarly to the side plate 21 and the V-ring seal 26 shield plate 25 and the seal member in the above-described comprising sealing structure is provided.
【0035】 [0035]
また、本例の内輪15には止めリング33が設けられる。 Also, stop ring 33 is provided on the inner ring 15 of the present embodiment.
止めリング33は、円断面形状のバネ鋼等で製作され、その円周の一箇所に合せ面を有するリングの円断面を円錐台形状の円錐ころ32の小径側の端面に沿って切欠いた断面形状に成形し、その切欠面をそれぞれの円錐ころ32の側に向けてそれぞれの内輪15に設けたリング溝に装着して設置する。 Stop ring 33 is made of spring steel or the like of the circular cross-sectional shape, cutaway along the circular cross section of the ring having a mating surface at one position of its circumference to the end face of the small diameter side of the tapered rollers 32 of the frustoconical section molded into shape, it is placed by attaching the truncated face the ring groove provided on each of the inner ring 15 toward the side of the respective tapered rollers 32.
【0036】 [0036]
この円錐ころ32の小径側の止めリング33と大径側の内輪鍔部15bにより、それぞれの列の円錐ころ32の軸方向の動きを制限すると共に内輪15の組立時の円錐ころ32の脱落を防止する。 By inner collar portion 15b of the large-diameter side and stop ring 33 of the small diameter side of the tapered rollers 32, the falling off of the tapered rollers 32 during assembly of the inner ring 15 while limiting their axial movement of the tapered rollers 32 column To prevent.
その他の部位は、通常の複列円錐ころ軸受と同様であるので、その説明を省略する。 The other site is the same as the normal double row tapered roller bearing is omitted.
【0037】 [0037]
このように構成した複式円錐ころ軸受31においては、上記実施の形態例と同様の効果を得ることができ、外部からの水分や異物の侵入を防止して複列円錐ころ軸受31の良好な潤滑状態を維持して複列円錐ころ軸受31の寿命低下を防止することができる。 In double tapered roller bearing 31 having such a configuration, it is possible to obtain the same effect as in the examples, good lubrication of the double row tapered roller bearing 31 to prevent entry of moisture and foreign matters from the outside it is possible to prevent the reduction of the service life of the double row tapered roller bearing 31 to maintain the state.
【0038】 [0038]
【発明の効果】 【Effect of the invention】
以上述べたように、本発明は、転動体の両側に配置した側板に排気孔を設けて加圧されたエアを排出し、この側板をシール体とVリングシールにより静止した内輪と回転する外輪との間を遮断したことによって、圧延油や水分等の侵入を防止することができると共に良好な潤滑状態を維持して外輪回転型転がり軸受の寿命の低下を防止することができるという効果が得られる。 As described above, the present invention is outer ring rolling on the side plates arranged on both sides of the body is provided an exhaust hole to discharge the pressurized air, rotating the plate and the inner race stationary by the seal member and the V-ring seal obtained an effect that by blocked between, can be prevented by maintaining good lubrication state can be prevented from entering such rolling oil and water a reduction in the service life of the rotating outer ring type rolling bearing and It is.
【0039】 [0039]
また、外輪と共に回転する側板に同等の開口を有する排気孔を設けたことによって、排気孔が潤滑油により閉塞されることを防止して、外輪回転型転がり軸受転動体に常に均等に潤滑油を供給することができる。 Further, by providing the vent hole having an equivalent opening in the side plate which rotates with the outer ring, the exhaust hole is prevented from being closed by the lubricating oil, always evenly lubricating oil to the outer ring rotating type rolling bearing rolling elements it can be supplied.
【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS
【図1】本発明の実施の形態を示す断面図【図2】図1のA部拡大図【図3】実施の形態の円筒ころ軸受を適用する多段式圧延機を示す概略側面図【図4】実施の形態の円筒ころ軸受を適用したバッキングロール軸を示す概略正面図【図5】実施の形態の側板の他の態様を示す半断面図【図6】本発明を適用した複式円錐ころ軸受を示す半断面図【符号の説明】 Sectional view showing an embodiment of the invention, FIG 2 is a schematic side view showing a multi-stage rolling machine according to the cylindrical roller bearing in the form of A-part enlarged view Figure 3 embodiment of FIG. 1 and FIG. 4] double tapered rollers to which the other half cross-sectional view showing an aspect of the present invention; FIG side plate exemplary schematic front view of a backing roll shaft to which the cylindrical roller bearing in the form [5] embodiment half cross-sectional view showing a bearing eXPLANATION oF REFERENCE nUMERALS
1 ハウジング1a 挿入口1b 排出口2 ワークロール3 パスライン4a 第1の中間ロール4b 第2の中間ロール5 バッキングロール軸6 ギア8 サドル9 軸内潤滑油供給孔9a 放射連通孔10 潤滑油グルーブ11 複列円筒ころ軸受12 円筒ころ13 保持器14 外輪14a 外輪転動面14b 外輪鍔部14c 側板嵌合面14d 止め輪挿入穴15 内輪15a 内輪転動面15b 内輪鍔部15c シールド板嵌合面16 潤滑油供給孔17a 内側グルーブ17b 外側グルーブ18 浮輪21 側板21a Oリング溝21b シール面22a Oリング22b 角リング22c L字リング23 排気孔24 止め輪25 シールド板25a 嵌合部25b 縁部26 Vリングシール26a リップ部31 複式円錐ころ軸受32 円錐ころ33 止めリング 1 housing 1a insertion port 1b outlet 2 work roll 3 pass line 4a first intermediate rolls 4b second intermediate roll 5 the backing roll axis 6 gear 8 saddle 9-shaft lubricant supply hole 9a radiation passage 10 lubricating oil groove 11 double row cylindrical roller bearing 12 cylindrical roller 13 cage 14 outer ring 14a outside wheel rotation surface 14b outer collar portion 14c side plate fitting surfaces 14d retaining ring insertion hole 15 inner ring 15a in the wheel rotation plane 15b inner flange portion 15c shield plate fitting surface 16 the lubricating oil supply holes 17a inside the groove 17b outside the groove 18 Ukiwa 21 side plate 21a O-ring groove 21b sealing surface 22a O-ring 22b angle ring 22c L-shaped ring 23 exhaust hole 24 stop ring 25 shield plate 25a engaging portion 25b edge 26 V-ring seal 26a lip 31 double tapered roller bearing 32 tapered rollers 33 stop ring

Claims (3)

  1. 外輪と、静止軸に固定された内輪と、前記外輪と内輪との間に複数列に配設された転動体と、該複数列の転動体の列間に形成した潤滑油供給口とを備えた外輪回転型転がり軸受において、 Includes an outer ring, an inner ring fixed to the stationary shaft, and rolling elements arranged in a plurality of rows between the outer ring and the inner ring, and a lubricating oil supply port formed between the rows of rolling elements of said plurality sequences in the outer ring rotating type rolling bearing was,
    前記複数列の転動体の軸受外部に面した側に、外部と連通する排気孔を有し、前記外輪の内周面に設けた側板嵌合面にシール体を介在させて嵌合する側板と、該側板に摺接し、前記内輪に固定したVリングシールとからなるシール構造を設けたことを特徴とする外輪回転型転がり軸受。 The side facing the outside of the bearing of the rolling element of said plurality of rows, and the outside and has a communicating to exhaust port, side plates is interposed in the fitting the seal body to the side plate fitting surfaces provided on the inner peripheral surface of the outer ring , in sliding contact with the side plate, an outer ring rotating type rolling bearing, characterized in that a sealing structure comprising a V-ring seal which is fixed to the inner race.
  2. 請求項1において、 According to claim 1,
    前記シール体を、Oリングとしたことを特徴とする外輪回転型転がり軸受。 Wheel rotating type rolling bearing, characterized in that the sealing member, and the O-ring.
  3. 請求項1または請求項2において、 According to claim 1 or claim 2,
    前記複数列の転動体の軸受外部に面した側に設けた側板の排気孔を、同等の開口を有する構成としたことを特徴とする外輪回転型転がり軸受。 Wherein the plurality of rows exhaust holes of the side plate provided on the side facing the outside of the bearing of the rolling elements, the outer ring rotating type rolling bearing is characterized in that a configuration having the same aperture.
JP2003070838A 2003-03-14 2003-03-14 Outer ring revolving type rolling bearing Pending JP2004278660A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006258262A (en) * 2005-03-18 2006-09-28 Nsk Ltd Double-row rolling bearing
JP2009530554A (en) * 2006-03-22 2009-08-27 パウル ミュラー ゲーエムベーハー ウント コンパニー カーゲー ウンターネーメンスベタイリグンゲン Bearing having a porous element for receiving the lubricant
US20110112499A1 (en) * 2006-12-04 2011-05-12 Michael Dale Trennepohl Absorbent Article Comprising Graphics
CN102359498A (en) * 2011-10-24 2012-02-22 成都利君科技有限责任公司 Roll squeezer and V-type sealing structure for roll system of high-pressure roller mill
JP2014137090A (en) * 2013-01-16 2014-07-28 Jtekt Corp Rolling bearing device, and rolling machine back-up roll using the same
CN104214210A (en) * 2014-08-07 2014-12-17 南车株洲电力机车有限公司 Double-row-cylindrical-roller bearing
CN105090252A (en) * 2014-05-06 2015-11-25 襄阳汽车轴承股份有限公司 Double-column cylindrical roller bearing with sealing function
CN106369045A (en) * 2016-12-09 2017-02-01 瓦房店轴承集团有限责任公司 Ultra-large type double-column cylindrical roller bearing
CN108105255A (en) * 2017-12-26 2018-06-01 瓦房店轴承集团有限责任公司 Sealing and dustproof double-row cylindrical roller bearing for pulley block

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006258262A (en) * 2005-03-18 2006-09-28 Nsk Ltd Double-row rolling bearing
JP2009530554A (en) * 2006-03-22 2009-08-27 パウル ミュラー ゲーエムベーハー ウント コンパニー カーゲー ウンターネーメンスベタイリグンゲン Bearing having a porous element for receiving the lubricant
US20110112499A1 (en) * 2006-12-04 2011-05-12 Michael Dale Trennepohl Absorbent Article Comprising Graphics
CN102359498A (en) * 2011-10-24 2012-02-22 成都利君科技有限责任公司 Roll squeezer and V-type sealing structure for roll system of high-pressure roller mill
JP2014137090A (en) * 2013-01-16 2014-07-28 Jtekt Corp Rolling bearing device, and rolling machine back-up roll using the same
CN105090252A (en) * 2014-05-06 2015-11-25 襄阳汽车轴承股份有限公司 Double-column cylindrical roller bearing with sealing function
CN104214210A (en) * 2014-08-07 2014-12-17 南车株洲电力机车有限公司 Double-row-cylindrical-roller bearing
CN106369045A (en) * 2016-12-09 2017-02-01 瓦房店轴承集团有限责任公司 Ultra-large type double-column cylindrical roller bearing
CN108105255A (en) * 2017-12-26 2018-06-01 瓦房店轴承集团有限责任公司 Sealing and dustproof double-row cylindrical roller bearing for pulley block

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