JPH0344329Y2 - - Google Patents

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Publication number
JPH0344329Y2
JPH0344329Y2 JP1986094890U JP9489086U JPH0344329Y2 JP H0344329 Y2 JPH0344329 Y2 JP H0344329Y2 JP 1986094890 U JP1986094890 U JP 1986094890U JP 9489086 U JP9489086 U JP 9489086U JP H0344329 Y2 JPH0344329 Y2 JP H0344329Y2
Authority
JP
Japan
Prior art keywords
inner ring
ring
bearing
flange
extension
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
Application number
JP1986094890U
Other languages
Japanese (ja)
Other versions
JPS632508U (en
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 filed Critical
Priority to JP1986094890U priority Critical patent/JPH0344329Y2/ja
Publication of JPS632508U publication Critical patent/JPS632508U/ja
Application granted granted Critical
Publication of JPH0344329Y2 publication Critical patent/JPH0344329Y2/ja
Expired legal-status Critical Current

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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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings 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
    • F16C19/34—Bearings 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
    • F16C19/38—Bearings 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
    • F16C19/383—Bearings 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
    • F16C19/388—Bearings 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 four rows, i.e. four row tapered roller bearings
    • 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
    • F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
    • F16C33/7813—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for tapered roller bearings
    • 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
    • F16C33/80—Labyrinth sealings
    • 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Description

【考案の詳細な説明】 産業上の利用分野 この考案は、圧延機における密封形多列ころ軸
受に関するものである。[Detailed description of the invention] Industrial field of application This invention relates to a sealed multi-row roller bearing for a rolling mill.

従来技術 高速化の進んだ最近の圧延機では、製品の板厚
精度を確保するために、冷却水を大量に供給して
ロールの形状制御を行つている。このような圧延
機のロールネツク軸承用として用いられる軸受に
おいては、軸受が収められる軸箱周辺の環境が従
来設備に比べて格段に劣悪となるから、何らかの
密封対策が必要になる。BACKGROUND ART In recent rolling mills, which have advanced in speed, a large amount of cooling water is supplied to control the shape of the rolls in order to ensure the accuracy of the thickness of the product. In bearings used as roll neck bearings of such rolling mills, the environment around the axle box in which the bearings are housed is much worse than in conventional equipment, so some kind of sealing measure is required.

この種の密封対策を講じた圧延機ロールネツク
用密封形軸受として、特開昭59−223103号公報開
示の構造のものが使用されている。この構造は、
多列ころ軸受の両端部において内輪の外端部を外
輪端部よりも軸方向に延長して内輪延長環部を形
成する一方、外向きフランジをそれぞれ有し軸方
向へ重合して締め付け手段により分離可能に連結
し、軸受内方に最も近い内側環体が容易に内輪延
長環部から分離できないように内輪延長環部に外
嵌した複数の内側環体と、内向きフランジをそれ
ぞれ有しこれら各フランジが外向きフランジと交
互に並んですきまを形成するように内側環体と同
心状に軸方向へ重合うして締め付け手段により分
離可能に連結されて外輪端部に位置させた複数の
外側環体とからなる非接触型密封装置を、前記軸
受両端部に設けたものである。 As a sealed bearing for a roll neck of a rolling mill that takes this kind of sealing measure, a structure disclosed in Japanese Patent Application Laid-Open No. 59-223103 has been used. This structure is
At both ends of the multi-row roller bearing, the outer end of the inner ring is extended in the axial direction from the outer ring end to form an inner ring extension ring, and each has an outward flange that overlaps in the axial direction and is tightened by a tightening means. A plurality of inner ring bodies are separably connected and are fitted externally to the inner ring extension ring so that the inner ring closest to the inner side of the bearing cannot be easily separated from the inner ring extension ring, each having an inward flange. A plurality of outer rings are arranged at the end of the outer ring, each flange being arranged alternately with an outward facing flange, concentrically overlapping the inner ring body in the axial direction, and separably connected by a tightening means. A non-contact type sealing device consisting of an annular body is provided at both ends of the bearing.

考案が解決しようとする問題点 上記の従来構造の圧延機用密封形多列ころ軸受
においては、複数の内側環体のうち軸受内方に最
も近い内側環体が、容易に内輪延長環部から分離
出来ないように内輪延長環部に圧入して外嵌され
ている。Problems to be Solved by the Invention In the conventional sealed multi-row roller bearing for rolling mills described above, the inner ring closest to the inside of the bearing among the plurality of inner rings is easily separated from the inner ring extension ring. It is press-fitted into the inner ring extension ring so that it cannot be separated.

しかしながら、軸受回転中、軸受の発熱により
前記内側環体が膨張して内輪延長環部に対するし
めしろが不足し、緩みを生じてクリープを起こ
し、ねじで結合された複数の内側環体がクリープ
を起こすことがある。このようなクリープが起こ
ると、内側環体と内輪延長環部に発熱を生じて内
輪の焼付きに発展し、軸受寿命を低下させるとい
う問題が生じる。 However, during bearing rotation, the inner ring expands due to the heat generated by the bearing, resulting in insufficient interference with the inner ring extension ring, causing loosening and creep, which causes the plurality of inner rings connected by screws to creep. It can happen. When such creep occurs, heat is generated in the inner ring body and the inner ring extension ring, leading to seizure of the inner ring, resulting in a problem of shortening the life of the bearing.

問題点を解決するための手段 本考案は、かかる問題点を解決するためになさ
れたもので、多列ころ軸受の両端部において内輪
の外端部を外輪端部よりも軸方向に延長して内輪
延長環部を形成する一方、外向きフランジをそれ
ぞれ有し軸方向へ重合して締め付け手段により分
離可能に連結し、軸受内方に最も近い内側環体が
容易に内輪延長環部から分離できないように内輪
延長環部に外嵌した複数の内側環体と、内向きフ
ランジをそれぞれ有しこれら各フランジが外向き
フランジと交互に並んですきまを形成するように
内側環体と同心状に軸方向へ重合うして締め付け
手段により分離可能に連結されて外輪端部に位置
させた複数の外側環体とからなる非接触型密封装
置を、前記軸受両端部に設けたものにおいて、軸
受内方に最も近い内側環体が、その内周面に軸方
向溝を有しており、該軸方向溝に内輪延長環部の
外周面に突設した突起を係入して内輪延長環部に
回り止めされたことを特徴とするものである。Means for Solving the Problems The present invention has been made to solve these problems by extending the outer end of the inner ring further in the axial direction than the outer ring end at both ends of the multi-row roller bearing. While forming an inner ring extension ring, each has an outward flange, overlaps in the axial direction, and is separably connected by a tightening means, so that the inner ring closest to the inside of the bearing cannot be easily separated from the inner ring extension ring. As shown in FIG. A non-contact type sealing device is provided at both ends of the bearing, comprising a plurality of outer ring bodies overlapping in the direction and separably connected by a tightening means and positioned at the end of the outer ring. The inner ring closest to the inner ring has an axial groove on its inner peripheral surface, and a protrusion protruding from the outer peripheral surface of the inner ring extension ring is inserted into the axial groove to rotate around the inner ring extension ring. It is characterized by being stopped.

作 用 内輪延長環部に嵌合される複数個の内側環体の
うち、軸受内方に最も近い内側環体は、その内周
面に形成された軸方向溝に、内輪延長環部の外周
面に突設した突起を係入して内輪延長環部に回り
止めされる。Function Of the plurality of inner ring bodies that fit into the inner ring extension ring, the inner ring closest to the inside of the bearing has an axial groove formed on its inner circumferential surface that fits the outer circumference of the inner ring extension ring. Rotation is prevented by the inner ring extension ring by engaging a protrusion protruding from the surface.

実施例 この考案の一つの実施例を第１図および第２図
に基づいて次に説明する。Embodiment One embodiment of this invention will be described below with reference to FIGS. 1 and 2.

この実施例の軸受１は、第１図に示すような圧
延機のロールネツク２を軸箱３内に軸承する４列
円錐ころ軸受に適用したものであり、軸受１の左
右両端部では、それぞれ内輪４の小鍔側端部を第
２図に示すように外輪５の端縁よりも軸方向に延
長して内輪延長環部４ａとする。 The bearing 1 of this embodiment is applied to a four-row tapered roller bearing in which a roll neck 2 of a rolling mill is supported in an axle box 3 as shown in FIG. As shown in FIG. 2, the small flange side end of 4 is extended in the axial direction beyond the edge of the outer ring 5 to form an inner ring extension ring portion 4a.

一方、外向きフランジ６ａ，７ａ，８ａをそれ
ぞれ形成した複数（第２図では３個）の内側環体
６，７，８を軸方向に重ね合わせて前記内輪延長
環部４に外嵌する。前記内側環体６，７，８とは
別に、内向きフランジ９ａ，１０ａをそれぞれ形
成した複数（第２図では２個）の外側環体９，１
０を、各内向きフランジ９ａ，１０ａが前記内側
環体６，７，８の外向きフランジ６ａ，７ａ，８
ａと交互に並ぶように、内側環体６，７，８と同
心状に軸方向へ重ね合せて連結し、これを外輪５
の端面側に位置させる。このようにして、内側環
体６，７，８の外周部と外側環体９，１０の内周
部の間に小すきま１１を形成し、軸受１の両端部
において内外輪４，５間を非接触型密封装置１
２，１２で封止する。 On the other hand, a plurality (three in FIG. 2) of inner ring bodies 6, 7, 8 each having outward flanges 6a, 7a, 8a are superimposed in the axial direction and fitted onto the inner ring extension ring part 4. Apart from the inner annular bodies 6, 7, 8, a plurality of (two in FIG. 2) outer annular bodies 9, 1 each have inward flanges 9a, 10a, respectively.
0, each inward flange 9a, 10a is the outer flange 6a, 7a, 8 of the inner ring body 6, 7, 8.
The outer ring 5
Position it on the end face side. In this way, a small gap 11 is formed between the outer periphery of the inner ring bodies 6, 7, 8 and the inner periphery of the outer ring bodies 9, 10, and a gap is formed between the inner and outer rings 4, 5 at both ends of the bearing 1. Non-contact sealing device 1
2, 12 to seal.

内側環体６，７，８および外側環体９，１０
は、軸受１の内側から外側へ向けて並ぶ各フラン
ジの並列順序が外向きフランジから始まるように
配列し、最も軸受内方に近い内側環体６の内周面
に設けた環状突部６ｃを内輪延長環部４ａに設け
た環状凹部４ｂに焼嵌めして固着する。最も軸受
内方に近い内側環体６の内周面には、軸方向の溝
１３が形成されておおり、内輪延長環部４ａの外
周面には突起１４が突設されており、前記内側環
体６は、軸方向溝１３に前記突起１４を係入して
内輪延長環部４ａに外嵌される。突起１４は、例
えば内輪延長環部４ａの環状凹部４ｂの円周上に
おける内側環体６の取り付け箇所に形成された盲
孔１５内にピンを挿入して設ける。そのほかの内
側環体７，８は、内輪延長環部４ａに対しすきま
ばめ状態に外嵌され、最も軸受内方の内側環体６
と図示しないねじにより、分離可能に結合されて
いる。 Inner ring bodies 6, 7, 8 and outer ring bodies 9, 10
The flanges are arranged in such a way that the flanges lined up from the inside to the outside of the bearing 1 start from the outward facing flange, and the annular protrusion 6c is provided on the inner peripheral surface of the inner ring body 6 closest to the inside of the bearing. It is fixed by shrink-fitting into the annular recess 4b provided in the inner ring extension ring 4a. An axial groove 13 is formed on the inner circumferential surface of the inner ring body 6 closest to the inner side of the bearing, and a protrusion 14 is provided on the outer circumferential surface of the inner ring extension ring portion 4a. The ring body 6 is externally fitted onto the inner ring extension ring portion 4a by engaging the projection 14 in the axial groove 13. The protrusion 14 is provided, for example, by inserting a pin into a blind hole 15 formed at the attachment point of the inner ring body 6 on the circumference of the annular recess 4b of the inner ring extension ring part 4a. The other inner ring bodies 7 and 8 are fitted externally to the inner ring extension ring part 4a in a loose fit state, and the inner ring body 6 is the innermost part of the bearing.
and are separably coupled by screws (not shown).

第２図において、中間位置にある内側環体７に
ついては、左右の内側環体６，８のように内周側
に厚肉の間座部６ｂ，８ｂを形成せず、外向きフ
ランジ７ａとなる外周側と均一の板厚としている
が、前記の間座部６ｂ，８ｂは、隣接する外向き
フランジ間に適当なすきまを与えることができれ
ば、どの内側環体を選んで形成してもよい。 In FIG. 2, the inner annular body 7 in the intermediate position does not have the thick spacer portions 6b, 8b formed on the inner circumferential side like the left and right inner annular bodies 6, 8, but has an outward flange 7a. However, the spacer portions 6b and 8b may be formed on any inner ring body as long as an appropriate gap can be provided between the adjacent outward flanges. .

このことは外側環体９，１０についても同様で
ある。 This also applies to the outer rings 9 and 10.

外向きフランジ６ａが軸受内方に最も近い内側
に位置するこの実施例の場合、各環体の軸受１へ
の取り付けは、６，９，７，１０，８の順序で行
う。また軸受の保守点検を行う場合には、各環体
の取付け順序とは逆に、まず内側環体用の図示し
ないねじと外側環体用のねじ１６を外し、次に各
環体を８，１０，７，９の順序で分解し、最後に
外輪５を軸受１から取り外して行う。尚、内側環
体６は、内輪４の延長環部４ａに焼嵌めにて固定
されているため、内輪４と一体に残る。第２図に
おいて、１７はＯリングで、外側環体９の外周部
に形成した周溝９ｃにこれを嵌装して、軸受１が
収められる軸箱３の内周面と外側環体９の外周面
の間を密封する。これにより、外側環体９の外周
面からこの外側環体９と外輪５の嵌合部を経て、
水が軸受１内へ侵入するのを防止できる。一方、
内輪延長環部４ａでは、これに対し内側環体４が
焼嵌めされているので、内輪延長環部４ａの外周
面を経て軸受１内へ水が侵入することはない。 In this embodiment, in which the outward flange 6a is located on the inner side closest to the inside of the bearing, the attachment of each ring to the bearing 1 takes place in the order 6, 9, 7, 10, 8. In addition, when performing maintenance and inspection of the bearing, first remove the screws (not shown) for the inner ring body and the screws 16 for the outer ring body, and then remove the screws 16 (not shown) for the inner ring body, and then remove the Disassemble in the order of steps 10, 7, and 9, and finally remove the outer ring 5 from the bearing 1. In addition, since the inner ring body 6 is fixed to the extension ring portion 4a of the inner ring 4 by shrink fitting, it remains integral with the inner ring 4. In FIG. 2, reference numeral 17 denotes an O-ring, which is fitted into a circumferential groove 9c formed on the outer circumference of the outer annular body 9, so that the inner circumferential surface of the axle box 3 in which the bearing 1 is housed and the outer annular body 9 are connected. Seal between the outer peripheral surfaces. As a result, from the outer circumferential surface of the outer ring body 9 through the fitting part between the outer ring body 9 and the outer ring 5,
Water can be prevented from entering the bearing 1. on the other hand,
Since the inner ring body 4 is shrink-fitted to the inner ring extension ring portion 4a, water does not enter into the bearing 1 through the outer peripheral surface of the inner ring extension ring portion 4a.

内側環体６，７，８と外側環体９，１０の間に
形成される小すきま１１の、軸受外方へ向けて開
放する開口部１１ａおよび軸受無いほう側へ向け
て開放する開口部１１ｂが、それぞれ外径方向へ
向けて、少し傾斜するように、内側環体６，８の
外向きフランジ６ａ，８ａの周端面およびこれに
対向する外側環体９，１０の所定内周面域をテー
パ面とする。 An opening 11a that opens toward the outside of the bearing and an opening 11b that opens toward the side without the bearing in the small gap 11 formed between the inner annular bodies 6, 7, and 8 and the outer annular bodies 9 and 10. However, the peripheral end surfaces of the outward flanges 6a, 8a of the inner ring bodies 6, 8 and the predetermined inner peripheral surface areas of the outer ring bodies 9, 10 facing thereto are slightly inclined toward the outer diameter direction. Make it a tapered surface.

第１図において、１８，１９，２０は接触型の
端部シール体で、軸受１が収められる内部から軸
方向に離れた軸箱３の両端部において、この軸箱
３とロールネツク２の間を密封し、軸箱３の両端
部からの水やダストの侵入を防止している。 In FIG. 1, reference numerals 18, 19, and 20 are contact-type end seals that seal between the axle box 3 and the roll neck 2 at both ends of the axle box 3 that are axially distant from the inside where the bearing 1 is housed. It is sealed to prevent water and dust from entering from both ends of the axle box 3.

軸受１の内外輪４，５間を密封する密封装置の
配設位置と、前記の端部シール体１８，１９，２
０の間では、軸箱３とロールネツク２で挟まれる
空隙部２１を有しており、その途中には、この空
隙部２１を軸箱３外へ連通させる下向きの排水孔
２２，２３，２４を形成している。そのため、前
記端部シール体１８，１９，２０を突破して空隙
部２１内に侵入してきた水の大部分は、これらの
排水孔２２，２３，２４より箱外へ排出される。
また２５は円錐ころ、２６は鋼板製保持器であ
る。 The location of the sealing device that seals between the inner and outer rings 4 and 5 of the bearing 1, and the end seal bodies 18, 19, 2
0, there is a gap 21 sandwiched between the axle box 3 and the roll neck 2, and in the middle there are downward drainage holes 22, 23, 24 that communicate this gap 21 to the outside of the axle box 3. is forming. Therefore, most of the water that has penetrated the end seals 18, 19, 20 and entered the cavity 21 is discharged out of the box through these drainage holes 22, 23, 24.
Further, 25 is a tapered roller, and 26 is a steel plate cage.

考案の効果 以上詳述したように、この考案は、軸受内方に
最も近い内側環体が、この内周面に軸方向溝を有
しており、該軸方向溝に内輪延長環部の外周面に
突設した突起を侵入して回り止めされているの
で、軸受の回転中の発熱により内輪延長環部に対
するしめしろが不足しても、クリープを起こすこ
となく安定した密封効果を維持することができ、
軸受寿命に悪影響を及ぼすことがない。Effects of the Device As detailed above, in this device, the inner ring closest to the inside of the bearing has an axial groove on its inner peripheral surface, and the outer circumference of the inner ring extension ring is inserted into the axial groove. Rotation is prevented by penetrating the protrusions protruding from the surface, so even if the tightness against the inner ring extension ring is insufficient due to heat generation during rotation of the bearing, a stable sealing effect is maintained without causing creep. is possible,
No adverse effect on bearing life.

尚、実施例では４列円錐ころ軸受を示している
が、軸受形式はこれに限定されるもものではな
い。 Note that although a four-row tapered roller bearing is shown in the embodiment, the bearing type is not limited to this.

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

第１図はこの考案の密封形多列ころ軸受による
圧延機ロールネツク軸承状態を示す断面図、第２
図はこの考案の一実施例を示す断面図である。 １……軸受、４……内輪、４ａ……内輪延長環
部、５……外輪、６，７，８……内側環体、６
ａ，７ａ，８ａ……外向きフランジ、９，１０…
…外側環体、９ａ，１０ａ……内向きフランジ、
１１……小すきま、１２……非接触型密封装置、
１６……ねじ。 Figure 1 is a sectional view showing the rolling mill roll neck bearing state using the sealed multi-row roller bearing of this invention;
The figure is a sectional view showing an embodiment of this invention. DESCRIPTION OF SYMBOLS 1... Bearing, 4... Inner ring, 4a... Inner ring extension ring, 5... Outer ring, 6, 7, 8... Inner ring, 6
a, 7a, 8a...outward flange, 9, 10...
...outer ring body, 9a, 10a...inward flange,
11...Small gap, 12...Non-contact sealing device,
16...screw.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 多列ころ軸受の両端部において内輪の外端部を
外輪端部よりも軸方向に延長して内輪延長環部を
形成する一方、外向きフランジをそれぞれ有し軸
方向へ重合して締め付け手段により分離可能に連
結し、軸受内方に最も近い内側環体が容易に内輪
延長環部から分離できないように内輪延長環部に
外嵌した複数の内側環体と、内向きフランジをそ
れぞれ有しこれら各フランジが外向きフランジと
交互に並んですきまを形成するように内側環体と
同心状に軸方向へ重合うして締め付け手段により
分離可能に連結されて外輪端部に位置させた複数
の外側環体とからなる非接触型密封装置を、前記
軸受両端部に設けたものにおいて、軸受内方に最
も近い内側環体が、この内周面に軸方向溝を有し
ており、該軸方向溝に内輪延長環部の外周面に突
設した突起を係入して内輪延長環部に回わり止め
されていることを特徴とする圧延機における密封
形多列ころ軸受。 At both ends of the multi-row roller bearing, the outer end of the inner ring is extended in the axial direction from the outer ring end to form an inner ring extension ring, and each has an outward flange that overlaps in the axial direction and is tightened by a tightening means. A plurality of inner ring bodies are separably connected and are fitted externally to the inner ring extension ring so that the inner ring closest to the inner side of the bearing cannot be easily separated from the inner ring extension ring, each having an inward flange. A plurality of outer rings are arranged at the end of the outer ring, each flange being arranged alternately with an outward facing flange, concentrically overlapping the inner ring body in the axial direction, and separably connected by a tightening means. A non-contact type sealing device consisting of an annular body is provided at both ends of the bearing, and the inner annular body closest to the inside of the bearing has an axial groove on its inner circumferential surface. 1. A sealed multi-row roller bearing for a rolling mill, characterized in that a projection protruding from the outer peripheral surface of the inner ring extension ring is inserted into a groove to prevent rotation on the inner ring extension ring.
JP1986094890U 1986-06-20 1986-06-20 Expired JPH0344329Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986094890U JPH0344329Y2 (en) 1986-06-20 1986-06-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986094890U JPH0344329Y2 (en) 1986-06-20 1986-06-20

Publications (2)

Publication Number Publication Date
JPS632508U JPS632508U (en) 1988-01-09
JPH0344329Y2 true JPH0344329Y2 (en) 1991-09-18

Family

ID=30958812

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986094890U Expired JPH0344329Y2 (en) 1986-06-20 1986-06-20

Country Status (1)

Country Link
JP (1) JPH0344329Y2 (en)

Also Published As

Publication number Publication date
JPS632508U (en) 1988-01-09

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