JPH0647997B2 - Bearing device for water pump - Google Patents
Bearing device for water pumpInfo
- Publication number
- JPH0647997B2 JPH0647997B2 JP61311099A JP31109986A JPH0647997B2 JP H0647997 B2 JPH0647997 B2 JP H0647997B2 JP 61311099 A JP61311099 A JP 61311099A JP 31109986 A JP31109986 A JP 31109986A JP H0647997 B2 JPH0647997 B2 JP H0647997B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- water pump
- outer ring
- bearing
- ceramic
- 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 - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 32
- 238000005096 rolling process Methods 0.000 claims description 22
- 239000004519 grease Substances 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 10
- 230000001050 lubricating effect Effects 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【発明の詳細な説明】 〈産業上の利用分野〉 この発明は、たとえば自動車等のエンジンを冷却するた
めに使用される水ポンプ用軸受装置に関する。TECHNICAL FIELD The present invention relates to a bearing device for a water pump used for cooling an engine of, for example, an automobile.
〈従来の技術〉 従来、水ポンプ用軸受装置としては第２図に示すような
ものがある。この水ポンプ用軸受装置は、ケーシング１
内にシリンダ室２を設け、このシリンダ室２と外部とを
連通する排水孔３を設けている。上記シリンダ室２には
鋼製の外輪５を固定し、この外輪５の内周面に軌道面
６，６を形成している。また、上記シリンダ室２内に鋼
製の回転軸７を配置し、この回転軸７の一端部に軌道面
８，８を形成している。この外輪５の軌道面６，６と回
転軸７の軌道面８，８との間に金属製のボール１０，１
０，…を介装している。そして、上記外輪５と回転軸７
の間であって、ボール１０，１０，…の外側にゴム製の
リップ部１１，１１を有するシール部材１２，１２を設
け、上記リップ部１１，１１を回転軸７の外周面に摺接
している。そして、この両シール部材１２，１２の間に
グリースを充填している。<Prior Art> Conventionally, there is a water pump bearing device as shown in FIG. This bearing device for a water pump has a casing 1
A cylinder chamber 2 is provided inside, and a drainage hole 3 that connects the cylinder chamber 2 and the outside is provided. An outer ring 5 made of steel is fixed to the cylinder chamber 2, and raceways 6 and 6 are formed on the inner peripheral surface of the outer ring 5. Further, a steel rotary shaft 7 is arranged in the cylinder chamber 2, and raceway surfaces 8 are formed at one end of the rotary shaft 7. Between the raceways 6 and 6 of the outer ring 5 and the raceways 8 and 8 of the rotary shaft 7, metal balls 10 and 1 are formed.
0, ... are interposed. Then, the outer ring 5 and the rotating shaft 7
Between the balls 10, 10, ..., Sealing members 12, 12 having rubber-made lip portions 11, 11 are provided, and the lip portions 11, 11 are slidably contacted with the outer peripheral surface of the rotary shaft 7. There is. Then, grease is filled between the both seal members 12, 12.
一方、上記回転軸７の水側の他端部にボス１４を固定
し、このボス１４にインペラ１５を取付けている。この
ボス１４と外輪５との間にはメカニカルシール１６を設
け、さらにこのメカニカルシール１６と外輪５との間の
回転軸７にスリンガー１７を固定している。On the other hand, a boss 14 is fixed to the other end of the rotary shaft 7 on the water side, and an impeller 15 is attached to the boss 14. A mechanical seal 16 is provided between the boss 14 and the outer ring 5, and a slinger 17 is fixed to the rotary shaft 7 between the mechanical seal 16 and the outer ring 5.
そして、上記回転軸７で、上記インペラ１５を回転させ
て、冷却水をエンジン(図示せず)に圧送しているとき
に、メカニカルシール１６から水が漏れる。この漏れた
水は上記スリンガー１７の回転による遠心力で排水孔３
から外部へ排出するようにしている。Then, when the impeller 15 is rotated by the rotating shaft 7 to pump the cooling water to the engine (not shown), water leaks from the mechanical seal 16. The leaked water is drained by the centrifugal force generated by the rotation of the slinger 17 to the drain hole 3
I try to discharge it from the outside.
〈発明が解決しようとする問題点〉 ところで、上記従来の水ポンプ用軸受装置では、メカニ
カルシール１６からの冷却水を外部に排出するためのス
リンガー１７と排水孔３を設ける必要があるため、製作
工程が増すという問題がある。<Problems to be Solved by the Invention> By the way, in the above-mentioned conventional bearing device for a water pump, it is necessary to provide the slinger 17 and the drain hole 3 for discharging the cooling water from the mechanical seal 16 to the outside. There is a problem that the number of processes is increased.
また、上記従来の水ポンプ用軸受装置では、冷却水の一
部がシール部材１２のリップ部１１と回転軸７の外周面
の間の摺動箇所からグリースを充填した内部に浸入する
ため、鋼の錆と水との相互作用でグリースが劣化し、潤
滑作用が悪くなるという問題がある。Further, in the above-described conventional bearing device for a water pump, part of the cooling water enters the grease-filled interior from the sliding portion between the lip portion 11 of the seal member 12 and the outer peripheral surface of the rotating shaft 7, so that the steel There is a problem that the grease deteriorates due to the interaction between the rust and water and the lubrication function deteriorates.
そこで、この発明の目的は、水の浸入によるグリースの
潤滑性能の低下を防止でき、かつ、製作工程が少なくて
すむ水ポンプ用軸受装置を提供することにある。Therefore, an object of the present invention is to provide a bearing device for a water pump, which can prevent deterioration of the lubricating performance of grease due to infiltration of water and can be manufactured in a small number of manufacturing steps.
〈問題点を解決するための手段〉 上記目的を達成するため、この発明の水ポンプ用軸受装
置は、一端部の外周面に軌道面を形成したステンレス鋼
材製シャフトと、内周面に軌道面を形成したステンレス
鋼材製外輪と、上記シャフトの一端部の軌道面と上記外
輪の軌道面との間に介装されたセラミック製もしくはセ
ラミックをコーティングした複数の転動体と、上記転動
体を保持する合成樹脂製保持器と、上記シャフトと上記
外輪の両端との間に配設され、転動体収容空間を密封す
る軸受シールと、上記転動体収容空間内に封入される潤
滑グリースとを備える軸受部と、上記軸受部とインペラ
を有する水ポンプ部との間に配置され、上記軸受部と上
記水ポンプ部を隔絶する密封装置とを備えることを特徴
としている。<Means for Solving the Problems> In order to achieve the above object, the bearing device for a water pump of the present invention has a stainless steel shaft having a raceway surface formed on the outer peripheral surface of one end, and a raceway surface on the inner peripheral surface. And a plurality of ceramic-made or ceramic-coated rolling elements interposed between the raceway surface of one end of the shaft and the raceway surface of the outer ring, which holds the rolling element. Bearing part provided with a cage made of synthetic resin, a bearing seal arranged between the shaft and both ends of the outer ring and sealing the rolling element accommodation space, and lubricating grease sealed in the rolling element accommodation space And a sealing device that is disposed between the bearing portion and the water pump portion having an impeller, and that isolates the bearing portion and the water pump portion from each other.
〈作用〉 インペラが回転し、冷却水を圧送中に冷却水が密封装置
から漏れても、軸受部が、耐蝕性を有するステンレス鋼
材製シャフトおよび外輪と非常に高い耐蝕性を有するセ
ラミック製もしくはセラミックをコーティングした転動
体と、合成樹脂製保持器を備えているため、錆が発生し
にくく、万一転動体収容空間に水が侵入しても、錆と水
との相互作用によって生じるグリースの劣化が起きにく
くなる。また、合成樹脂製の保持器を使用しているた
め、上記転動体と接触しても摩耗粉が発生しにくく、摩
耗粉によるグリースの劣化が防止できる。また、軌道
輪、すなわちシャフトと外輪の材料(ステンレス製鋼材)
と、これら軌道輪の軌道上を摺動する転動体の材料(セ
ラミック)を異種材としているので、軌道での凝着現象
が防止でき、したがって焼き付きが起きにくい。また、
水とグリースが混ざってグリースが劣化しても転動体お
よび内外軌道部分の材料特性により良好な潤滑がなさ
れ、軸受部は円滑に作動する。<Function> Even if the cooling water leaks from the sealing device while the impeller rotates and the cooling water is being pumped, the bearing part is made of a stainless steel shaft or outer ring having corrosion resistance or a ceramic or ceramic material having extremely high corrosion resistance. Since it is equipped with a rolling element coated with and a cage made of synthetic resin, rust is unlikely to occur, and even if water enters the rolling element housing space, grease deterioration caused by the interaction between rust and water Is less likely to occur. Further, since the cage made of synthetic resin is used, abrasion powder is unlikely to be generated even when it comes into contact with the rolling element, and it is possible to prevent deterioration of grease due to abrasion powder. Also, the material of the bearing ring, that is, the shaft and outer ring (stainless steel)
In addition, since the material (ceramic) of the rolling elements that slide on the races of these races is made of a different material, the adhesion phenomenon on the races can be prevented, and therefore seizure hardly occurs. Also,
Even if water and grease are mixed and the grease deteriorates, good lubrication is achieved due to the material characteristics of the rolling elements and the inner and outer races, and the bearing portion operates smoothly.
〈実施例〉 以下、この発明を図示の一実施例により詳細に説明す
る。<Example> Hereinafter, the present invention will be described in detail with reference to an example shown in the drawings.
第１図において、２１はケーシング、２２は軸受部、２
３は水ポンプ部、２５は単一の密封装置である。In FIG. 1, 21 is a casing, 22 is a bearing portion, 2
3 is a water pump unit, and 25 is a single sealing device.
上記ケーシング２１には、シリンダ室２４を形成してい
る。上記軸受部２２は、シャフト２６と外輪２７と転動
体としてのボール２８，２８，…からなる。上記外輪２
７は、ケーシング２１のシリンダ室２４内に固定され、
耐蝕性を有する材料であるステンレス鋼(たとえばＳＵ
Ｓ４４０Ｃ)で形成している。上記外輪２７の内周面の
２箇所に軌道面３２，３２を形成する一方、外輪２７の
内周面の両端部に周段部を形成している。上記シャフト
２６は、シリンダ室２４内に配置され、耐蝕性を有する
材料であるステンレス鋼(たとえばＳＵＳ４４０Ｃ)で形
成している。上記シャフト２６の略中央部に段部を形成
している。上記外輪２７の軌道面３２，３２に対応する
シャフト２６の外周面に軌道面３５，３５を形成してい
る。外輪２７の軌道面３２，３２とシャフト２６の軌道
面３５，３５との間には、ボール２８，２８，…を周方
向に沿って一定間隔をあけて介装している。上記ボール
２８，２８，…を合成樹脂製の保持器３６，３６で保持
している。A cylinder chamber 24 is formed in the casing 21. The bearing portion 22 includes a shaft 26, an outer ring 27, and balls 28, 28, ... As rolling elements. Outer ring 2
7 is fixed in the cylinder chamber 24 of the casing 21,
Corrosion resistant material such as stainless steel (eg SU
It is formed by S440C). While the raceway surfaces 32, 32 are formed at two locations on the inner peripheral surface of the outer ring 27, peripheral step portions are formed at both ends of the inner peripheral surface of the outer ring 27. The shaft 26 is arranged in the cylinder chamber 24 and is made of stainless steel (for example, SUS440C) which is a material having corrosion resistance. A step portion is formed at a substantially central portion of the shaft 26. Raceway surfaces 35, 35 are formed on the outer peripheral surface of the shaft 26 corresponding to the raceway surfaces 32, 32 of the outer ring 27. Balls 28, 28, ... Are interposed between the raceways 32, 32 of the outer ring 27 and the raceways 35, 35 of the shaft 26 at regular intervals along the circumferential direction. The balls 28, ... Are held by cages 36, 36 made of synthetic resin.
上記ボール２８としては、セラミックで形成したもの
か、またはボール２８の外表面をセラミックコーティン
グ、たとえばボール２８の外表面にアルミナ、シリコ
ン、ジルコニア等を溶融噴射し、陶磁性の無機質被覆を
形成したものが用いられる。このボール２８は、常温お
よび高温における耐蝕性、硬さおよび強さおよび強さの
点で極めて優れたものである。また、ボール２８は軌道
輪であるシャフト２６、外輪２７とは異種の材料で形成
されているため、同種材料同士のような凝着現象が起き
にくく、したがって焼き付きが起きにくい。The balls 28 are made of ceramic, or the outer surfaces of the balls 28 are ceramic-coated, for example, alumina, silicon, zirconia, etc. are melt-sprayed on the outer surfaces of the balls 28 to form a ceramic inorganic coating. Is used. The balls 28 are extremely excellent in corrosion resistance at room temperature and high temperature, hardness and strength, and strength. Further, since the ball 28 is formed of a material different from that of the shaft 26 and the outer ring 27, which are race rings, a sticking phenomenon unlike the case of materials of the same type does not easily occur, and therefore seizure does not easily occur.
上記外輪２７の周縁部にリング状のシール部材３７，３
７の外周部を固定する一方、シール部材３７，３７の内
周部に二又状のリップ部３８，３８をシャフト２６の外
周面に摺接している。両シール部材３７，３７の間のボ
ール２８，２８，…が存する空間にグリースを充填して
いる。Ring-shaped sealing members 37, 3 are provided around the outer ring 27.
While fixing the outer peripheral portion of 7, the bifurcated lip portions 38, 38 are slidably contacted with the outer peripheral surface of the shaft 26 on the inner peripheral portions of the seal members 37, 37. The space in which the balls 28, 28, ... Between the seal members 37, 37 are filled with grease.
上記水ポンプ部２３は、インペラ４１とボス42からな
る。ボス４２をシャフト２６の小径部分の端部に固定
し、ボス４２の先端部にインペラ４１を取付けている。
ボス４２の後端部に断面コ字状のゴム製のリング部材４
３を固定し、リング部材４３の内側に断面矩形のシート
リング４５を固定している。The water pump section 23 includes an impeller 41 and a boss 42. The boss 42 is fixed to the end of the small diameter portion of the shaft 26, and the impeller 41 is attached to the tip of the boss 42.
A rubber ring member 4 having a U-shaped cross section at the rear end portion of the boss 42.
3 is fixed, and a seat ring 45 having a rectangular cross section is fixed inside the ring member 43.
上記密封装置２５は、シートリング４５と従動リング４
６とシートヘッド部４７からなる。上記シートヘッド部
４７の断面コ字状の金属製のリング部材４８をシリンダ
室２４の内周端部に固定し、リング部材４８内にゴム製
の部材４０を焼付け、この部材４０に従動リング４６を
焼付けて進退自在に取付けている。この従動リング４６
の先端面をバネ５１によりシートリング４５の端面に押
接している。しかして、密封装置２５は軸受部２２と水
ポンプ部２３を隔絶している。The sealing device 25 includes the seat ring 45 and the driven ring 4.
6 and a seat head portion 47. A metal ring member 48 having a U-shaped cross section of the seat head portion 47 is fixed to an inner peripheral end portion of the cylinder chamber 24, a rubber member 40 is baked in the ring member 48, and a driven ring 46 of this member 40 is baked. It is attached by baking and moving back and forth. This driven ring 46
The front end surface of the sheet is pressed against the end surface of the seat ring 45 by the spring 51. Thus, the sealing device 25 isolates the bearing portion 22 and the water pump portion 23.
上記構成において、いまシャフト２６を回転させてイン
ペラ４１を回転させて、冷却水を圧送しているとする。
冷却水がどうしてもシートリング４５と従動リング４６
との間の摺動箇所から軸受部２２へ漏れる。そして、こ
のときシャフト２６の回転により軸受部２２の内部温度
が上昇している。しかし、シャフト２６および外輪２７
は耐蝕性があるステンレス鋼で形成し、保持器３６を合
成樹脂で形成する一方、ボール２８，２８，…は高温に
対して耐蝕性がよいセラミックで形成しているので、錆
が発生せず、したがって冷却水がグリースと混合しても
錆との相互作用がなく殆ど劣化せず、グリースの寿命は
従来例よりも２〜３倍も長くなり、加えて水も潤滑作用
をし、したがって軸受部２２の長寿命化が図れる。ま
た、軸受装置の使用条件によって冷却水を外部に排出す
る必要がない場合には、従来例の如きスリンガーや排水
孔を設ける必要がなく、装置の製作が簡単にでき、軸方
向の寸法を短かくできてコンパクト化が図れる。In the above configuration, it is assumed that the shaft 26 is rotated and the impeller 41 is rotated to pump the cooling water.
The cooling water must be seat ring 45 and driven ring 46.
Leaks to the bearing portion 22 from the sliding portion between At this time, the rotation of the shaft 26 causes the internal temperature of the bearing portion 22 to rise. However, the shaft 26 and the outer ring 27
Is made of corrosion-resistant stainless steel, and the cage 36 is made of synthetic resin, while the balls 28, 28, ... Are made of ceramic having good corrosion resistance to high temperatures, so no rust occurs. Therefore, even if the cooling water is mixed with the grease, it hardly interacts with rust and is hardly deteriorated, and the life of the grease is 2-3 times longer than that of the conventional example. In addition, the water also has a lubricating action, and therefore, the bearing. The life of the portion 22 can be extended. Also, if it is not necessary to discharge the cooling water to the outside depending on the operating conditions of the bearing device, it is not necessary to provide slinger and drain holes as in the conventional example, the device can be easily manufactured, and the axial dimension can be shortened. Thus, it can be made compact.
上記実施例では、保持器３６を合成樹脂で形成したの
で、軸受部２２では錆の発生するところがないという利
点を有する。また、保持器を鋼製にした場合には、セラ
ミック製転動体との組み合わせによって保持器が摩耗し
て摩耗粉が発生しやすく、この摩耗粉によってグリース
が劣化するが、保持器が合成樹脂でできているので、摩
耗粉が発生しにくく、摩耗粉によるグリースの劣化が防
止できる。In the above-mentioned embodiment, since the cage 36 is made of synthetic resin, there is an advantage that the bearing portion 22 has no rust. Also, when the cage is made of steel, the cage is likely to wear due to the combination with the ceramic rolling element and wear particles are easily generated.This wear powder deteriorates grease, but the cage is made of synthetic resin. Since it is made, abrasion powder is less likely to be generated, and deterioration of grease due to abrasion powder can be prevented.
〈発明の効果〉 以上の説明より明らかなように、この発明の水ポンプ用
軸受装置は、一端部の外周面に軌道面を形成したステン
レス鋼材製シャフトと、内周面に軌道面を形成したステ
ンレス鋼材製外輪と、上記シャフトの一端部の軌道面と
上記外輪の軌道面との間に介装されたセラミック製もし
くはセラミックをコーティングした複数の転動体と、上
記転動体を保持する合成樹脂製保持器と、上記シャフト
と上記外輪の両端との間に配設され、転動体収容空間を
密封する軸受シールと、上記転動体収容空間内に封入さ
れる潤滑グリースとを備える軸受部と、上記軸受部とイ
ンペラを有する水ポンプ部との間に配置され、上記軸受
部と上記水ポンプ部を隔絶する密封装置とを備えるの
で、軸受部の内部に冷却水が侵入しても、錆等が発生し
にくく、水と錆との相互作用によるグリースの劣化が防
止できる。また、上記合成樹脂製保持器はセラミック転
動体と接触しても摩耗粉が発生しにくいため、摩耗粉に
よるグリースの劣化も防止できる。さらに、上記シャフ
トおよび外輪と、上記転動体とは互いに異種の材料で形
成されているため、軌道での凝着現象を防止して、焼き
付きの発生を防止することができる上、上記軸受部の内
部に冷却水が侵入しても、この水を潤滑剤として利用で
きるので、軸受の長寿命化を図ることができる。また、
軸受装置の使用条件によっては、従来例の如き冷却水を
外部に排出するスリンガーや排水孔を設ける必要がな
く、構造、組立てを簡単にできるという利点を有する。<Effects of the Invention> As is apparent from the above description, the bearing device for a water pump of the present invention has a stainless steel shaft having a raceway surface formed on the outer peripheral surface at one end and a raceway surface formed on the inner peripheral surface. An outer ring made of stainless steel, a plurality of ceramic-made or ceramic-coated rolling elements interposed between the raceway surface of one end of the shaft and the raceway of the outer ring, and a synthetic resin holding the rolling elements. A cage, a bearing seal that is disposed between the shaft and both ends of the outer ring and that seals the rolling element housing space, and a bearing portion that includes lubricating grease that is sealed in the rolling element housing space; It is arranged between the bearing part and the water pump part having an impeller, and since it has a sealing device that isolates the bearing part and the water pump part, even if cooling water enters the inside of the bearing part, rust etc. Hard to occur In addition, grease deterioration due to the interaction between water and rust can be prevented. Further, since the above-mentioned cage made of synthetic resin does not easily generate abrasion powder even when it comes into contact with the ceramic rolling element, deterioration of grease due to abrasion powder can be prevented. Furthermore, since the shaft and the outer ring and the rolling element are formed of different materials from each other, it is possible to prevent the adhesion phenomenon on the raceway and prevent the occurrence of seizure. Even if cooling water enters the inside, this water can be used as a lubricant, so that the life of the bearing can be extended. Also,
Depending on the usage conditions of the bearing device, it is not necessary to provide a slinger or a drain hole for discharging cooling water to the outside as in the conventional example, and there is an advantage that the structure and assembly can be simplified.
第１図はこの発明の一実施例の水ポンプ用軸受装置の断
面図、第２図は従来例の断面図である。 ２２……軸受部、２３……水ポンプ部、 ２５……密封装置、２６……シャフト、２７……外輪、 ２８……転動体、３２，３５……軌道面、３６……保持
器、４１……インペラ。FIG. 1 is a sectional view of a bearing device for a water pump according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional example. 22 ... Bearing part, 23 ... Water pump part, 25 ... Sealing device, 26 ... Shaft, 27 ... Outer ring, 28 ... Rolling element, 32, 35 ... Raceway surface, 36 ... Cage, 41 …… Impeller.
Claims (1)
レス鋼材製シャフトと、内周面に軌道面を形成したステ
ンレス鋼材製外輪と、上記シャフトの一端部の軌道面と
上記外輪の軌道面との間に介装されたセラミック製もし
くはセラミックをコーティングした複数の転動体と、上
記転動体を保持する合成樹脂製保持器と、上記シャフト
と上記外輪の両端との間に配設され、転動体収容空間を
密封する軸受シールと、上記転動体収容空間内に封入さ
れる潤滑グリースとを備える軸受部と、 上記軸受部とインペラを有する水ポンプ部との間に配置
され、上記軸受部と上記水ポンプ部を隔絶する密封装置
とを備えることを特徴とする水ポンプ用軸受装置。1. A stainless steel shaft having a raceway surface formed on an outer peripheral surface at one end, a stainless steel outer ring having a raceway surface formed on an inner peripheral surface, a raceway surface at one end of the shaft, and a raceway of the outer ring. A plurality of rolling elements made of ceramic or coated with ceramic interposed between the surfaces, a cage made of synthetic resin for holding the rolling elements, and arranged between the shaft and both ends of the outer ring, A bearing seal that seals the rolling element housing space, a bearing portion that includes a lubricating grease that is sealed in the rolling element housing space, and the bearing portion that is disposed between the bearing portion and a water pump portion that has an impeller. A bearing device for a water pump, comprising: and a sealing device that isolates the water pump portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311099A JPH0647997B2 (en) | 1986-12-26 | 1986-12-26 | Bearing device for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61311099A JPH0647997B2 (en) | 1986-12-26 | 1986-12-26 | Bearing device for water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63163000A JPS63163000A (en) | 1988-07-06 |
| JPH0647997B2 true JPH0647997B2 (en) | 1994-06-22 |
Family
ID=18013124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61311099A Expired - Fee Related JPH0647997B2 (en) | 1986-12-26 | 1986-12-26 | Bearing device for water pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0647997B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0479994U (en) * | 1990-11-22 | 1992-07-13 | ||
| CN104769367B (en) | 2012-07-24 | 2017-10-13 | 赤木富士雄 | Fluid handling device and fluid handling method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6023293U (en) * | 1983-07-25 | 1985-02-18 | 日本精工株式会社 | Mechanical seal internal water pump bearing |
| JPS61251586A (en) * | 1985-04-30 | 1986-11-08 | イビデン株式会社 | Sliding material of ceramic composite body |
-
1986
- 1986-12-26 JP JP61311099A patent/JPH0647997B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63163000A (en) | 1988-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6712580B2 (en) | Seal apparatus for a water pump, rotation-support apparatus for a water pump, and a water pump | |
| EP0508013B1 (en) | Sealing elements for anti-friction bearings | |
| US5522667A (en) | Ball bearing for turbocharger | |
| EP1420154B1 (en) | Seal device for water pump, rotation support device for water pump, and water pump | |
| EP0228847A2 (en) | Improvements in and relating to seals | |
| US6719459B1 (en) | Ball bearing | |
| US9850955B2 (en) | Outer race rotation bearing | |
| US20040062461A1 (en) | Roller bearing having high performance bearing seal and cartridge | |
| US20050062233A1 (en) | Seal device for water pump, rotation supporting device for water pump, and assembly method for water pump | |
| CN102011746B (en) | Automobile water pump bearing sealing device | |
| JP2004019722A (en) | Rolling bearing | |
| US6290234B1 (en) | Shaft assembly having improved seal arrangement | |
| JPH0647997B2 (en) | Bearing device for water pump | |
| EP0060109A1 (en) | Shaft seals for rotary pumps | |
| JPH10196664A (en) | Sealing device for rolling bearing | |
| CN210118363U (en) | hub unit bearing | |
| JPH0921396A (en) | Bearing seal device for water pump | |
| JP3250987U (en) | Rolling bearings | |
| JPH0729300Y2 (en) | Ceramic rolling bearing | |
| JP2004084813A (en) | Rolling bearing | |
| JP4203712B2 (en) | Rolling bearing | |
| JP2003247556A (en) | Multipoint contact ball bearings and automotive pulleys | |
| JP2002339995A (en) | Rolling bearing | |
| JPH084773A (en) | Solid lubricating rolling bearing | |
| JPH08326765A (en) | Sealed bearing and manufacture thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |