JP2545986Y2 - Connection structure of drive shaft for reciprocating pump - Google Patents

Connection structure of drive shaft for reciprocating pump

Info

Publication number
JP2545986Y2
JP2545986Y2 JP1989051955U JP5195589U JP2545986Y2 JP 2545986 Y2 JP2545986 Y2 JP 2545986Y2 JP 1989051955 U JP1989051955 U JP 1989051955U JP 5195589 U JP5195589 U JP 5195589U JP 2545986 Y2 JP2545986 Y2 JP 2545986Y2
Authority
JP
Japan
Prior art keywords
drive shaft
insertion hole
crankshaft
shaft
reciprocating pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP1989051955U
Other languages
Japanese (ja)
Other versions
JPH02144676U (en
Inventor
弘之 織田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maruyama Manufacturing Co Inc
Original Assignee
Maruyama Manufacturing Co Inc
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 by Maruyama Manufacturing Co Inc filed Critical Maruyama Manufacturing Co Inc
Priority to JP1989051955U priority Critical patent/JP2545986Y2/en
Publication of JPH02144676U publication Critical patent/JPH02144676U/ja
Application granted granted Critical
Publication of JP2545986Y2 publication Critical patent/JP2545986Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Details Of Reciprocating Pumps (AREA)
  • Sealing Devices (AREA)

Description

【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、往復ポンプの駆動軸に動力軸を接続する
接続部の構造に関し、詳しくは駆動軸と動力軸との錆付
き等を防止できる接続構造に関するものである。
[Detailed description of the invention] [Industrial application field] This invention relates to a structure of a connecting portion for connecting a power shaft to a drive shaft of a reciprocating pump, and in particular, can prevent rust between the drive shaft and the power shaft. It relates to a connection structure.

〔従来の技術〕[Conventional technology]

第6図は往復液体ポンプ10のクランク軸12と動力軸と
しての出力軸24との従来の接続構造を示す図である
(例:実願昭61−103734号は、クランク軸と動力軸との
間にアダプタを介在させる実施例を開示しており、アダ
プタとクランク軸及び動力軸との接続部は第6図におけ
るクランク軸12と出力軸24との接続部と同一であ
る。)。後述のこの考案の実施例と共通する部分につい
ては実施例と同じ符号により指示して、要部のみを簡単
に説明する。挿入孔18がクランク軸12の動力入力端部20
に形成され、エンジン(図示せず)の出力軸24が、クラ
ンク軸12と中心線が一致するように配設され、挿入端部
28を挿入孔18内へ嵌入され、キー等によりクランク軸12
と一体回転的に接続される。
FIG. 6 is a diagram showing a conventional connection structure between the crankshaft 12 of the reciprocating liquid pump 10 and the output shaft 24 as a power shaft (for example, Japanese Utility Model Application No. 61-103734 discloses a connection between the crankshaft 12 and the power shaft). An embodiment in which an adapter is interposed therebetween is disclosed, and the connection between the adapter, the crankshaft, and the power shaft is the same as the connection between the crankshaft 12 and the output shaft 24 in FIG. 6). Parts common to the later-described embodiment of the present invention will be designated by the same reference numerals as those of the embodiment, and only the main part will be briefly described. The insertion hole 18 is the power input end 20 of the crankshaft 12.
The output shaft 24 of the engine (not shown) is disposed so that the center line thereof coincides with the crankshaft 12, and the insertion end
28 is inserted into the insertion hole 18, and the crankshaft 12 is
And are connected to rotate integrally.

〔考案が解決しようとする課題〕[Problems to be solved by the invention]

このような従来の接続構造では、挿入孔18と挿入端部
28とが錆や焼き付き等により固着状態となり、保守時等
において出力軸24をクランク軸12から外すことが困難と
なることがあるとともに、錆の発生は使用者へ品質に関
して悪い印象を与える恐れがあるので、この考案では錆
等に因る往復ポンプの駆動軸と動力軸との接続部の固着
を防止することを企図するとともに、往復ポンプの駆動
軸と動力軸との軸方向の関係変位にもかかわらず潤滑油
が外部へ漏れるのを防止しようとするものである。
In such a conventional connection structure, the insertion hole 18 and the insertion end
And the output shaft 24 may be difficult to remove from the crankshaft 12 at the time of maintenance or the like, and the generation of rust may give a bad impression to a user regarding quality. Therefore, the present invention aims to prevent the connection between the drive shaft of the reciprocating pump and the power shaft from being fixed due to rust and the like, and to reduce the axial displacement between the drive shaft of the reciprocating pump and the power shaft. Nevertheless, it is intended to prevent the leakage of the lubricating oil to the outside.

〔課題を解決するための手段〕[Means for solving the problem]

この考案を、実施例に対応する図面の符号を使用して
説明する。
This invention will be described using the reference numerals of the drawings corresponding to the embodiments.

この考案の往復ポンプ(10)用駆動軸(12)の接続構
造では、駆動軸(12)が回転自在に往復ポンプ(10)の
駆動軸ケース(13)内に延び、挿入孔(18)が駆動軸
(12)の中心線に沿って駆動軸(12)の動力入力端部
(20)に形成されている。動力軸(24)は、その挿入端
部(28)を駆動軸ケース(13)の外部から挿入孔(18)
に嵌入され、駆動軸(12)に一体回転的に結合してい
る。そして、駆動軸ケース(13)内の潤滑油を前記挿入
孔(18)の奥部へ導入する油穴(22)が駆動軸(12)に
形成され、かつ軸方向へ伸縮自在に弾性力を負荷したシ
ール部材(32,32a,32b)が、駆動軸(12)と動力軸(2
4)の本体部(26)とに両端を結合され、前記挿入端部
(28)の挿入孔(18)からの露出部を覆っている。
In the connection structure of the drive shaft (12) for the reciprocating pump (10) of the present invention, the drive shaft (12) is rotatably extended into the drive shaft case (13) of the reciprocating pump (10), and the insertion hole (18) is formed. A power input end (20) of the drive shaft (12) is formed along a center line of the drive shaft (12). The insertion end (28) of the power shaft (24) is inserted from the outside of the drive shaft case (13) into the insertion hole (18).
And is integrally rotatably connected to the drive shaft (12). An oil hole (22) for introducing the lubricating oil in the drive shaft case (13) into the interior of the insertion hole (18) is formed in the drive shaft (12), and elastically expands and contracts in the axial direction. The loaded seal members (32, 32a, 32b) are connected to the drive shaft (12) and the power shaft (2
Both ends are coupled to the main body (26) of (4), and cover the exposed portion of the insertion end (28) from the insertion hole (18).

〔作用〕[Action]

駆動軸ケース(13)内の潤滑油は、油穴(22)を介し
て駆動軸(12)の挿入孔(18)内へ導入され、挿入孔
(18)と動力軸(24)の挿入端部(28)との接触面を潤
滑するとともに、シール部材(32,32a,32b)は、駆動軸
(12)と動力軸(24)との軸方向の関係変位に伴って軸
方向へ伸縮し、挿入孔(18)からの挿入端部(28)の露
出部を外部に対して密封状態に保持する。駆動軸(12)
の挿入孔(18)の端から挿入孔(18)の外へ漏れ出た潤
滑油は、挿入孔(18)からの挿入端部(28)の露出部を
覆っているシール部材(32,32a,32b)により外部への漏
れを防止される。
The lubricating oil in the drive shaft case (13) is introduced into the insertion hole (18) of the drive shaft (12) through the oil hole (22), and is inserted into the insertion hole (18) and the insertion end of the power shaft (24). In addition to lubricating the contact surface with the part (28), the seal member (32, 32a, 32b) expands and contracts in the axial direction with the axial displacement between the drive shaft (12) and the power shaft (24). The exposed portion of the insertion end (28) from the insertion hole (18) is held in a sealed state from the outside. Drive shaft (12)
The lubricating oil that has leaked out of the insertion hole (18) from the end of the insertion hole (18) of the seal member (32, 32a) covering the exposed portion of the insertion end (28) from the insertion hole (18). , 32b) prevents leakage to the outside.

〔実施例〕〔Example〕

以下、この考案を第1図〜第5図の実施例について説
明する。
Hereinafter, this invention will be described with reference to the embodiment shown in FIGS.

第1図は往復液体ポンプ10のクランク軸12と動力軸と
しての出力軸24との接続構造を示す図である。クランク
軸12は、クランクケース13内に水平に延び、両端部にお
いてボールベアリング14を介してクランクケース13に回
転自在に軸支されている。オイルシール16は、クランク
軸12の軸方向に関してボールベアリング14の外側におい
てクランク軸12の周部とクランクケース13との間に嵌挿
されクランクケース13内の潤滑油がクランクケース13の
外部へ出るのを阻止している。挿入孔18は、クランク軸
12の中心線に沿って延びるように、クランク軸12の動力
入力端部20に形成され、油穴22は、クランク軸12の半径
方向へ延び、挿入孔18の奥側の端部をクランクケース13
内へ連通させている。エンジン(図示せず)の出力軸24
は、クランク軸12と中心線が一致するように、配設さ
れ、本体部26とこれより小径の挿入端部28とを有し、挿
入端部28を挿入孔18内へ嵌入している。
FIG. 1 is a diagram showing a connection structure between a crankshaft 12 of a reciprocating liquid pump 10 and an output shaft 24 as a power shaft. The crankshaft 12 extends horizontally into the crankcase 13, and is rotatably supported at both ends on the crankcase 13 via ball bearings 14. The oil seal 16 is inserted between the periphery of the crankshaft 12 and the crankcase 13 outside the ball bearing 14 in the axial direction of the crankshaft 12, and the lubricating oil in the crankcase 13 flows out of the crankcase 13. Has been blocked. The insertion hole 18 is
An oil hole 22 is formed in the power input end 20 of the crankshaft 12 so as to extend along the center line of the crankshaft 12, and extends in the radial direction of the crankshaft 12. 13
It is communicated inside. Output shaft 24 of engine (not shown)
Is disposed so that the center line of the crankshaft 12 coincides with the crankshaft 12, has a main body 26 and an insertion end 28 having a smaller diameter than the main body 26, and the insertion end 28 is fitted into the insertion hole 18.

第2図及び第3図はクランク軸12と出力軸24とを一体
回転的に接続する構造例を示す横断面図である。第2図
では、キー30が挿入孔18及び挿入端部28のキー溝へ挿入
されることにより、また、第3図では、挿入孔18及び挿
入端部28が非円形の横断面輪郭に形成されることによ
り、クランク軸12と出力軸24とは一体的に回転する。
2 and 3 are cross-sectional views showing an example of a structure in which the crankshaft 12 and the output shaft 24 are integrally and rotationally connected. In FIG. 2, the key 30 is inserted into the key groove of the insertion hole 18 and the insertion end 28, and in FIG. 3, the insertion hole 18 and the insertion end 28 are formed in a non-circular cross-sectional profile. As a result, the crankshaft 12 and the output shaft 24 rotate integrally.

第1図に戻って、環状のシール部材32は、動力入力端
部20の端と本体部26の端面との間に嵌挿され、挿入孔18
からの挿入端部28の露出部を外部に対して密封してい
る。前記シール部材32は、ケース体34と、このケース体
34の内周側に縮設される圧縮コイルばね36とを有してい
る。
Returning to FIG. 1, the annular seal member 32 is inserted between the end of the power input end 20 and the end face of the main body 26, and the insertion hole 18 is formed.
The exposed portion of the insertion end 28 is sealed from the outside. The seal member 32 includes a case body 34 and this case body.
A compression coil spring 36 is provided on the inner peripheral side of the compression coil spring 34.

第4図(a)及び(b)並びに第5図(a)及び
(b)はシール部材32の構造例を縮小状態及び伸長状態
で示す図である。
FIGS. 4 (a) and (b) and FIGS. 5 (a) and (b) are views showing a structural example of the seal member 32 in a contracted state and an extended state.

第4図のシール部材32aでは、ケース体34aは筒部38a
とその両端において内方へ張り出す張出し縁40aとから
成り、筒部38aへの張出し縁40aの結合部は屈曲自在とな
っている。したがって、ケース体34aを軸方向へ圧縮す
る荷重が減少すると、張出し縁40aは、第4図(b)に
示されるように、圧縮コイルばね36aにより軸方向外側
へ拡開して、シール部材32aの軸方向寸法が増加する。
In the seal member 32a shown in FIG. 4, the case body 34a has a cylindrical portion 38a.
And projecting edges 40a projecting inward at both ends thereof, and the connecting portion of the projecting edge 40a to the cylindrical portion 38a is bendable. Therefore, when the load for compressing the case body 34a in the axial direction decreases, the overhanging edge 40a is expanded outward in the axial direction by the compression coil spring 36a as shown in FIG. Increases in the axial direction.

第5図のシール部材32bでは、ケース体34bは筒部38b
とその両端において内方へ張り出す張出し縁40bとから
成り、筒部38bは、伸縮自在な蛇腹構造を有している。
したがって、ケース体34bを軸方向へ圧縮する荷重の減
少に応じて、筒部38bは圧縮コイルばね36bにより軸方向
へ伸長し、シール部材32bの軸方向寸法が増加する。
In the seal member 32b shown in FIG. 5, the case body 34b has a cylindrical portion 38b.
And a projecting edge 40b projecting inward at both ends thereof, and the cylindrical portion 38b has a bellows structure that can be extended and contracted.
Therefore, in response to a decrease in the load for compressing the case body 34b in the axial direction, the cylindrical portion 38b is extended in the axial direction by the compression coil spring 36b, and the axial dimension of the seal member 32b increases.

実施例の作用について説明する。 The operation of the embodiment will be described.

クランクケース13内の潤滑油は、油穴22を介してクラ
ンク軸12の挿入孔18内へ導入され、挿入孔18と出力軸24
の挿入端部28との接触面を潤滑する。シール部材32とク
ランク軸12端と出力軸24の挿入端部28の基端部とがなす
空間の回転時の圧力変化は、前記接触面への油の浸出を
容易とし、潤滑を促進する。
The lubricating oil in the crankcase 13 is introduced into the insertion hole 18 of the crankshaft 12 through the oil hole 22 and the insertion hole 18 and the output shaft 24
Lubricating the contact surface with the insertion end 28. The change in pressure during rotation of the space formed by the seal member 32, the end of the crankshaft 12, and the base end of the insertion end 28 of the output shaft 24 facilitates oil leaching to the contact surface and promotes lubrication.

シール部材32は、クランク軸12の端面と出力軸24の本
体部26の端面との軸方向の関係変位に伴って軸方向へ伸
縮し、挿入端部28の挿入孔18からの露出部を外部に対し
て密封状態に保持する。これにより、クランク軸12の挿
入孔18の端から挿入孔18の外へ漏れ出た潤滑油は、挿入
孔18からの挿入端部28の露出部を覆っているシール部材
32により外部への漏れを防止される。
The seal member 32 expands and contracts in the axial direction with the axial displacement between the end face of the crankshaft 12 and the end face of the main body 26 of the output shaft 24, and externally exposes the exposed portion of the insertion end portion 28 from the insertion hole 18. Is kept in a sealed state. As a result, the lubricating oil that has leaked out of the insertion hole 18 from the end of the insertion hole 18 of the crankshaft 12 seals the sealing member covering the exposed portion of the insertion end 28 from the insertion hole 18.
32 prevents leakage to the outside.

図示の実施例では、軸方向へ伸縮自在なケース体34及
びこのケース体34を軸方向拡張方向へ付勢する圧縮コイ
ルばね36により、ケース体34は、クランク軸12と出力軸
24との軸方向距離変化にかかわらず、挿入孔18からの挿
入端部28の露出部の密封状態を保持するが、シール部材
32を蛇腹状のブーツとし、このブーツの両端部をクラン
ク軸12の及び出力軸24の本体部26に固着して、図示のシ
ール部材32と同様の機能を得ることができる。
In the illustrated embodiment, the case body 34 is formed by the crankshaft 12 and the output shaft by a compression coil spring 36 that urges the case body 34 in the axial expansion direction in the axially expandable and contractable case body 34.
Although the exposed portion of the insertion end portion 28 from the insertion hole 18 is kept sealed regardless of the change in the axial distance from the
32 is a bellows-shaped boot, and both ends of the boot are fixed to the main body 26 of the crankshaft 12 and the output shaft 24, so that the same function as the illustrated seal member 32 can be obtained.

〔考案の効果〕[Effect of the invention]

この考案によれば、シール部材と駆動軸端と動力軸の
挿入端部基部とがなす空間に圧力変化が生じるので、動
力軸の挿入端部が嵌入される駆動軸の挿入孔へ油穴を介
して駆動軸ケース内の潤滑油が導入され、駆動軸の挿入
孔と動力軸の挿入端部との接触面が潤滑されるのを促進
する。したがって、駆動軸の挿入孔と動力軸の挿入端部
との間に錆及び焼き付き等が生じるのが防止され、保守
時等において動力軸を駆動軸から簡単に外すことができ
る。しかも、シール部材が、駆動軸と動力軸との関係変
位に応じて伸縮して、外部に対する駆動軸の挿入孔から
の動力軸の挿入端部の露出部の密封を保持するので、外
部への潤滑油の漏れを防止して、汚れを回避するととも
に、潤滑油の消費を抑制することができる。
According to this invention, since a pressure change occurs in the space formed by the seal member, the drive shaft end, and the insertion end base of the power shaft, an oil hole is inserted into the insertion hole of the drive shaft into which the insertion end of the power shaft is fitted. The lubricating oil in the drive shaft case is introduced through this, and the lubrication of the contact surface between the insertion hole of the drive shaft and the insertion end of the power shaft is facilitated. Therefore, rust and seizure are prevented from being generated between the insertion hole of the drive shaft and the insertion end of the power shaft, and the power shaft can be easily removed from the drive shaft during maintenance or the like. Moreover, the seal member expands and contracts in accordance with the relative displacement between the drive shaft and the power shaft, and maintains the sealing of the exposed portion of the insertion end of the power shaft from the insertion hole of the drive shaft to the outside, so Leakage of the lubricating oil can be prevented to avoid dirt and suppress consumption of the lubricating oil.

【図面の簡単な説明】[Brief description of the drawings]

第1図ないし第5図はこの考案の実施例に関し、第1図
は往復液体ポンプのクランク軸と動力軸としての出力軸
との接続構造を示す図、第2図及び第3図は動力入力端
部と挿入端部とを一体回転的に接続する構造例を示す横
断面図、第4図(a)及び(b)並びに第5図(a)及
び(b)はシール部材の構造例を縮小状態及び伸長状態
で示す図、第6図は往復液体ポンプのクランク軸と動力
軸としての出力軸との従来の接続構造を示す図である。 10……往復液体ポンプ(往復ポンプ)、12……クランク
軸(駆動軸)、13……クランクケース(駆動軸ケー
ス)、18……挿入孔、20……動力入力端部、22……油
穴、24……出力軸(動力軸)、26……本体部、28……挿
入端部、32,32a,32b……シール部材。
1 to 5 relate to an embodiment of the present invention. FIG. 1 is a diagram showing a connection structure between a crankshaft of a reciprocating liquid pump and an output shaft as a power shaft, and FIGS. 2 and 3 are power input. FIGS. 4 (a) and (b) and FIGS. 5 (a) and (b) show examples of the structure of the seal member, showing a structural example in which the end and the insertion end are integrally and rotationally connected. FIG. 6 is a view showing a contracted state and an extended state, and FIG. 6 is a view showing a conventional connection structure between a crankshaft of a reciprocating liquid pump and an output shaft as a power shaft. 10 reciprocating liquid pump (reciprocating pump), 12 crankshaft (drive shaft), 13 crankcase (drive shaft case), 18 insertion hole, 20 power input end, 22 oil Holes, 24: Output shaft (power shaft), 26: Main body, 28: Insertion end, 32, 32a, 32b: Seal member.

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】駆動軸(12)が回転自在に往復ポンプ(1
0)の駆動軸ケース(13)内に延び、挿入孔(18)が前
記駆動軸(12)の中心線に沿って前記駆動軸(12)の動
力入力端部(20)に形成され、動力軸(24)が、その挿
入端部(28)を前記駆動軸ケース(13)の外部から前記
挿入孔(18)に嵌入されて、前記駆動軸(12)に一体回
転的に結合する往復ポンプ(10)用駆動軸(12)の接続
構造において、前記駆動軸ケース(13)内の潤滑油を前
記挿入孔(18)の奥部へ導入すべく前記駆動軸(12)に
油穴(22)を形成するとともに、軸方向へ伸縮自在に弾
性力を負荷したシール部材(32,32a,32b)の両端を、前
記駆動軸(12)と前記動力軸(24)の本体部(26)とに
結合して、前記挿入端部(28)の前記挿入孔(18)から
の露出部を覆っていることを特徴とする往復ポンプ用駆
動軸の接続構造。
A reciprocating pump (1) in which a drive shaft (12) is rotatable.
0) extending into the drive shaft case (13), an insertion hole (18) is formed in the power input end (20) of the drive shaft (12) along the center line of the drive shaft (12), A reciprocating pump having a shaft (24) whose insertion end (28) is fitted into the insertion hole (18) from the outside of the drive shaft case (13) and integrally and rotationally connected to the drive shaft (12). In the connection structure of the drive shaft (12) for (10), an oil hole (22) is formed in the drive shaft (12) so that lubricating oil in the drive shaft case (13) is introduced into a deep portion of the insertion hole (18). ) Is formed, and both ends of the seal member (32, 32a, 32b) loaded with elastic force to be able to expand and contract in the axial direction are connected to the main body (26) of the drive shaft (12) and the power shaft (24). A connection structure for a drive shaft for a reciprocating pump, wherein the connection end covers the exposed portion of the insertion end (28) from the insertion hole (18).
JP1989051955U 1989-05-06 1989-05-06 Connection structure of drive shaft for reciprocating pump Expired - Lifetime JP2545986Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989051955U JP2545986Y2 (en) 1989-05-06 1989-05-06 Connection structure of drive shaft for reciprocating pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989051955U JP2545986Y2 (en) 1989-05-06 1989-05-06 Connection structure of drive shaft for reciprocating pump

Publications (2)

Publication Number Publication Date
JPH02144676U JPH02144676U (en) 1990-12-07
JP2545986Y2 true JP2545986Y2 (en) 1997-08-27

Family

ID=31571848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989051955U Expired - Lifetime JP2545986Y2 (en) 1989-05-06 1989-05-06 Connection structure of drive shaft for reciprocating pump

Country Status (1)

Country Link
JP (1) JP2545986Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018040343A (en) * 2016-08-31 2018-03-15 豊興工業株式会社 Electric-motor-directly-coupled type fluid-pressure pumping system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119168U (en) * 1984-07-10 1986-02-04 光洋精工株式会社 Waterproof seal unit
JPS6310275U (en) * 1986-07-08 1988-01-23

Also Published As

Publication number Publication date
JPH02144676U (en) 1990-12-07

Similar Documents

Publication Publication Date Title
US5201529A (en) Sealing device
JPH0535247Y2 (en)
JP2525536Y2 (en) Sealing device
JPS6143003Y2 (en)
JP2605197Y2 (en) Sealing device
JP2545986Y2 (en) Connection structure of drive shaft for reciprocating pump
US4162110A (en) Sealed thrust bearing with resilient seal having a metal portion
JPH0740127Y2 (en) Oil seal
US6997461B2 (en) High speed high pressure rotary
US6786644B2 (en) Sealing device for rolling bearings
JP3032646B2 (en) Eccentric bearing unit
JPH0649973Y2 (en) Oil seal
JP4123836B2 (en) Pulley unit sealing structure
JPH0632527Y2 (en) mechanical seal
JPH0381460U (en)
JPH0579447A (en) Rotating cam type compressed fluid machine
JPH0640336Y2 (en) Universal joint
JPH0225019Y2 (en)
JPH0726611Y2 (en) Sealing device
JP3128062B2 (en) Bearing seal device for water pump, bearing for water pump, and water pump for water-cooled engine of automobile
JPH0212352Y2 (en)
JP2594687Y2 (en) Rolling bearing sealing device
JP2517506Y2 (en) Cross joint with seal
JPH0215082Y2 (en)
JPH0522712Y2 (en)