JPH0516410Y2 - - Google Patents
Info
- Publication number
- JPH0516410Y2 JPH0516410Y2 JP1987056345U JP5634587U JPH0516410Y2 JP H0516410 Y2 JPH0516410 Y2 JP H0516410Y2 JP 1987056345 U JP1987056345 U JP 1987056345U JP 5634587 U JP5634587 U JP 5634587U JP H0516410 Y2 JPH0516410 Y2 JP H0516410Y2
- Authority
- JP
- Japan
- Prior art keywords
- seal member
- inner diameter
- outer diameter
- seal
- engagement groove
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 10
- 239000000314 lubricant Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- F16C29/00—Bearings for parts moving only linearly
- F16C29/08—Arrangements for covering or protecting the ways
- F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
-
- 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
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/068—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track
- F16C29/0683—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque
- F16C29/0685—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、外輪の内側に組み込んだ保持器に
よつて多数のボールを支持し、保持器の内径面か
ら内側に一部が突出するボールによつて軸をスラ
イド可能に支持するリニアボールリングのシール
装置に関するものである。[Detailed description of the invention] [Field of industrial application] This invention supports a large number of balls by a cage incorporated inside the outer ring, and the balls partially protrude inward from the inner diameter surface of the cage. The present invention relates to a sealing device for a linear ball ring that slidably supports a shaft.
上記リニアボールベアリングは、普通、外輪の
内径面両端部にシール部材を取付けて異物の侵入
を防止し、かつベアリングの内部に充填したグリ
ースの外部漏洩を防止するようにしている。
The above-mentioned linear ball bearing usually has seal members attached to both ends of the inner diameter surface of the outer ring to prevent the intrusion of foreign matter and to prevent the grease filled inside the bearing from leaking to the outside.
このようなリニアボールベアリングのシール装
置の従来技術として、例えば実公昭55−48180号
公報に示されたものがある。このシール装置は、
第６図に示すように、外輪２０の内径面両端部に
係合溝２１を設け、その係合溝２１にシール部材
２２の外径部を嵌合してシール部材２２の外径面
と係合溝２１の内径面間に遊動間〓２３を設けて
ある。 A conventional technique for such a sealing device for a linear ball bearing is disclosed in, for example, Japanese Utility Model Publication No. 55-48180. This sealing device is
As shown in FIG. 6, engagement grooves 21 are provided at both ends of the inner diameter surface of the outer ring 20, and the outer diameter portion of the seal member 22 is fitted into the engagement grooves 21 to engage with the outer diameter surface of the seal member 22. A floating gap 23 is provided between the inner diameter surfaces of the matching grooves 21.
また、シール部材２２の内径部にテーパ状の内
径シールリツプ２４を設け、このシールリツプ２
４の内径部をその内側に挿通した軸２５の外周面
に接触させてある。 Further, a tapered inner diameter seal lip 24 is provided on the inner diameter portion of the seal member 22, and this seal lip 24 is provided with a tapered inner diameter seal lip 24.
The inner diameter portion of the shaft 25 is brought into contact with the outer circumferential surface of the shaft 25 inserted inside the shaft 25.
さらに、シール部材２２の外側面における外周
部に補強突条２６を設け、その補強突条２６の外
径面と外輪２０の内径面両端部に形成された環状
突出部２７の内径面間に遊動間〓２８を設けてあ
る。 Further, a reinforcing protrusion 26 is provided on the outer circumferential portion of the outer surface of the seal member 22, and the reinforcing protrusion 26 is freely movable between the outer diameter surface of the reinforcing protrusion 26 and the inner diameter surface of an annular protrusion 27 formed at both ends of the inner diameter surface of the outer ring 20. A gap of 28 is provided.
上記のシール装置においては、係合溝２１に対
してシール部材２２の外径部が余裕をもつて嵌合
されているため、軸２５が径方向に変位すると、
シール部材２２も同方向に移動する。このため、
内径シールリツプ２４の内径縁が変形したり偏摩
耗するのを防止することができるという利点があ
る。 In the above seal device, since the outer diameter portion of the seal member 22 is fitted into the engagement groove 21 with a margin, when the shaft 25 is displaced in the radial direction,
The seal member 22 also moves in the same direction. For this reason,
This has the advantage that the inner diameter edge of the inner diameter seal lip 24 can be prevented from being deformed or unevenly worn.
しかし、係合溝２１とシール部材２２の外径部
間には、嵌め合わせのための余裕があるため、そ
の嵌合部間におけるシール性に問題があり、また
係合溝２１からシール部材２２の外径部が抜け出
し易く、シール部材２２の取付けの安定性に問題
がある。 However, since there is a margin between the outer diameter portion of the engagement groove 21 and the seal member 22 for fitting, there is a problem with the sealing performance between the fitting portions. The outer diameter portion of the sealing member 22 is likely to come off, which poses a problem in the stability of mounting the sealing member 22.
そこで、この考案は上記従来の問題点を解決
し、リニアボールベアリングのシール性の向上と
シール部材の取付けの安定性の向上を図ることを
目的としている。
Therefore, the purpose of this invention is to solve the above-mentioned conventional problems and to improve the sealing performance of the linear ball bearing and the stability of the attachment of the seal member.
上記の目的を達成するために、この考案は、外
輪の内径面両端部に形成した係合溝と、内径シー
ルリツプを備えるシール部材の外径部のはめ合い
を軸方向および径方向の２方向に余裕をもつたは
め合いとし、そのシール部材に、外径部が上記係
合溝に臨む一部が切り離された環状の芯金を取付
け、上記シール部材の外側面における外周部に外
径シールリツプを形成し、この外径シールリツプ
を、前記係合溝と外輪側面間に形成された環状突
出部の内径面に弾性的に当接させた構成としたの
である。
In order to achieve the above object, this invention has been developed to ensure that the engagement grooves formed at both ends of the inner diameter surface of the outer ring and the outer diameter portion of the seal member having the inner diameter seal lip fit in two directions, axially and radially. A partially cut-off annular core bar whose outer diameter portion faces the engagement groove is attached to the seal member, and an outer diameter seal lip is provided on the outer circumference of the outer surface of the seal member. The outer diameter seal lip is made to elastically abut on the inner diameter surface of an annular protrusion formed between the engagement groove and the outer ring side surface.
上記のように、構成すれば、内径シールリツプ
と軸との接触、および外径シールリツプと環状突
出部との接触によつてベアリング内部に充填した
潤滑剤の外部漏洩を防止することができると共
に、外部からベアリング内部に異物が侵入するの
を防止することができる。
With the structure described above, the contact between the inner diameter seal lip and the shaft and the contact between the outer diameter seal lip and the annular protrusion can prevent the lubricant filled inside the bearing from leaking to the outside. It is possible to prevent foreign matter from entering the inside of the bearing.
また、芯金の外径部が係合溝の側面と対向する
ため、シール部材に軸方向の負荷がかかると、上
記芯金で補強されたシール部材の外径部が係合溝
の側面に当接し、また、シール部材が係合溝から
抜き出そうとするときのモーメント荷重を外径シ
ールリツプが受けてふんばるためシール部材を確
実に抜け止めすることができる。 In addition, since the outer diameter part of the core metal faces the side surface of the engagement groove, when an axial load is applied to the seal member, the outer diameter part of the seal member reinforced with the core metal faces the side surface of the engagement groove. Since the outer diameter seal lip receives the moment load when the seal member contacts and tries to pull out from the engagement groove, it is possible to reliably prevent the seal member from coming out.
以下、この考案の実施例を第１図乃至第５図に
基づいて説明する。
Embodiments of this invention will be described below with reference to FIGS. 1 to 5.
第１図乃至第３図に示すように、リニアボール
ベアリングは、外輪１を備え、その外輪１の位置
側に保持器２が組み込まれている。外輪１と保持
器２の相互間には、図では詳細を省略したが、複
数の長円形ボール循環軌道が周方向に所要の間隔
をおいて形成され、各ボール循環軌道に多数のボ
ール３が移動可能に組み込まれている。 As shown in FIGS. 1 to 3, the linear ball bearing includes an outer ring 1, and a retainer 2 is installed on the side of the outer ring 1. Although the details are omitted in the figure, between the outer ring 1 and the cage 2, a plurality of oval ball circulation orbits are formed at required intervals in the circumferential direction, and a large number of balls 3 are arranged in each ball circulation orbit. Built-in movable.
ボール循環軌道の二条の直線軌道路はベアリン
グの半径方向に段差があり、その低段側の直線軌
道路は保持器２の内径面で開口し、その開口から
保持器２の内径面にボール３の一部が突出し、上
記ボール３で軸４がスライド可能に支持されてい
る。 The two linear track paths of the ball circulation track have steps in the radial direction of the bearing, and the lower straight track path opens at the inner diameter surface of the cage 2, and the balls 3 are passed from the opening to the inner diameter surface of the cage 2. A part of the shaft 4 protrudes, and the shaft 4 is slidably supported by the ball 3.
なお、リニアボールベアリングは上記の構造の
ものに限定されず、例えば、外輪の内側に組み込
んだ保持器に多数のポケツトを形成し、各ポケツ
トにボールを組み込んでボールの一部を保持器の
内径面から内方に突出させたものであつてもよ
い。 Note that linear ball bearings are not limited to those with the above structure; for example, a cage built into the inside of an outer ring has many pockets, and a ball is built into each pocket so that some of the balls can be inserted into the inner diameter of the cage. It may also be something that protrudes inward from the surface.
上記外輪１の内径面における両端部には係合溝
５が設けられ、その係合溝５にゴム等の弾性部材
から成るシール部材６の外径部が軸方向および径
方向の２方向に余裕をもつて嵌合されている。 Engagement grooves 5 are provided at both ends of the inner diameter surface of the outer ring 1, and the outer diameter portion of the seal member 6 made of an elastic member such as rubber is provided in the engagement grooves 5 with a margin in two directions, axial and radial. It is fitted with .
シール部材６の内径部にはテーパ状の内径シー
ルリツプ７が設けられ、その内径シールリツプ７
の内径縁が軸４の外径面に接触して異物の内部侵
入を防止し、かつベアリング内部の潤滑剤の漏洩
を防止している。 A tapered inner seal lip 7 is provided on the inner diameter portion of the seal member 6.
The inner diameter edge of the bearing contacts the outer diameter surface of the shaft 4 to prevent foreign matter from entering the bearing and to prevent lubricant from leaking inside the bearing.
また、シール部材６には芯金８が取付けられて
いる。この芯金８は一部が切り離されてい縮径可
能になり、その縮径状態において係合溝５にシー
ル部材６の外径部が着脱される。 Further, a core metal 8 is attached to the seal member 6. A portion of the core metal 8 is cut off so that the diameter can be reduced, and in the reduced diameter state, the outer diameter portion of the seal member 6 is attached to and removed from the engagement groove 5.
上記芯金８の外径部は係合溝５の内部に位置し
てシール部材６の外径部が係合溝５から抜け出る
のを防止している。 The outer diameter portion of the core bar 8 is located inside the engagement groove 5 to prevent the outer diameter portion of the seal member 6 from slipping out from the engagement groove 5.
なお、芯金８の外径面は、第３図に示すよう
に、シール部材６によつて包み込んでもよく、あ
るいは、第４図に示すように、露出させるように
してもよい。 The outer diameter surface of the core bar 8 may be enclosed by the sealing member 6 as shown in FIG. 3, or may be exposed as shown in FIG. 4.
さらに、シール部材６の外側面における外周面
には、外径シールリツプ９が設けられ、その外径
シールリツプ９は、外輪１の係合溝５と外輪側面
間に形成された環状突出部１０の内径面に弾性的
に当接されている。 Furthermore, an outer diameter seal lip 9 is provided on the outer peripheral surface of the outer surface of the seal member 6, and the outer diameter seal lip 9 is connected to the inner diameter of the annular protrusion 10 formed between the engagement groove 5 of the outer ring 1 and the outer ring side surface. It is elastically abutted against the surface.
上記外径シールリツプ９は、第３図に示すよう
に、外径面をテーパ面１１とし、そのテーパ面１
１の大径側端部を上記突出部１０の内径面に圧接
させるようにしてもよく、あるいは、第４図に示
すように、外径面を円筒面１２とし、その円筒面
１２の全体を突出部１０の内径面に圧接させるよ
うにしてもよい。 As shown in FIG. 3, the outer diameter seal lip 9 has an outer diameter surface with a tapered surface 11.
1 may be brought into pressure contact with the inner diameter surface of the protrusion 10, or alternatively, as shown in FIG. It may be made to come into pressure contact with the inner diameter surface of the protrusion 10.
上記のように、外径シールリツプ９を突出部１
０の内径面に圧接し、内径シールリツプ７を軸４
の外径面に接触させることによつて、外部からベ
アリング内部に異物が侵入するのを防止すること
ができる共に、ベアリング内部に充填したグリー
ス等の潤滑剤が外部に漏洩するのを防止すること
ができる。 As mentioned above, attach the outer diameter sealing lip 9 to the protrusion 1.
0, and the inner diameter seal lip 7 is pressed against the inner diameter surface of the shaft 4.
By making contact with the outer diameter surface of the bearing, it is possible to prevent foreign matter from entering the inside of the bearing from the outside, and also to prevent lubricant such as grease filled inside the bearing from leaking to the outside. I can do it.
また、芯金８の外径部を係合溝５に位置させた
ことによつて、軸４の移動に伴つてシール部材６
が軸方向に移動すると、上記芯金８によつて補強
されたシール部材６の外径部が係合溝５の側面に
係合すると共に、シール部材６が係合溝５から抜
け出そうとするときのモーメント荷重を外径シー
ルリツプ９が受けてふんばることになり、このた
め、シール部材６の外径部が係合溝５から抜け出
すのを確実に防止することができる。 In addition, by locating the outer diameter portion of the core bar 8 in the engagement groove 5, the seal member 6 can move as the shaft 4 moves.
When the sealing member 6 moves in the axial direction, the outer diameter portion of the sealing member 6 reinforced by the core bar 8 engages with the side surface of the engagement groove 5, and the sealing member 6 attempts to come out of the engagement groove 5. The outer diameter seal lip 9 receives the moment load caused by this, and therefore, the outer diameter portion of the seal member 6 can be reliably prevented from slipping out from the engagement groove 5.
以上のように、この考案は、シール部材の内径
シールリツプを軸の外径面に接触し、外径シール
リツプを外輪の内径面両端部に形成された環状突
出部の内径面に弾性的に当接させたので、外部か
らベアリング内部に異物が侵入するのを確実に防
止することができると共に、ベアリング内部の潤
滑剤が外部に漏洩するのを防止することができ
る。
As described above, this invention brings the inner diameter seal lip of the seal member into contact with the outer diameter surface of the shaft, and the outer diameter seal lip elastically contacts the inner diameter surface of the annular protrusion formed at both ends of the inner diameter surface of the outer ring. Therefore, it is possible to reliably prevent foreign matter from entering the inside of the bearing from the outside, and it is also possible to prevent the lubricant inside the bearing from leaking to the outside.
また、シール部材に取付け環状の芯金の外径部
を係合溝に位置させたので、軸の移動によつてシ
ール部材が軸方向に移動すると、上記芯金によつ
て補強されたシール部材の外径部が係合溝の側面
に当接し、一方、シール部材が係合溝から抜け出
そうとするときのモーメント荷重を外径シールリ
ツプが受けてふんばるため、シール部材の外径部
が係合溝から抜け出すのを確実に防止することが
でき、シール部材をきわめて安定よく取付けるこ
とができる。 In addition, since the outer diameter part of the annular core metal attached to the seal member is positioned in the engagement groove, when the seal member moves in the axial direction due to movement of the shaft, the seal member reinforced by the core metal The outer diameter part of the seal member contacts the side surface of the engagement groove, and the outer diameter seal lip receives the moment load when the seal member tries to come out of the engagement groove, causing the outer diameter part of the seal member to engage. It is possible to reliably prevent the seal member from slipping out of the groove, and the seal member can be attached extremely stably.
さらに、外径シールリツプが環状突出部の内径
面に弾性的に当接されているため、軸受内でシー
ル部材は径方向のがたが無く安定支持されるので
内径シールリツプの偏摩耗を防止することができ
る。 Furthermore, since the outer diameter seal lip is elastically abutted against the inner diameter surface of the annular protrusion, the seal member is stably supported within the bearing without radial play, thereby preventing uneven wear of the inner diameter seal lip. I can do it.
また、シール部材に一部を切り離した芯金を取
付けたので、その芯金を縮径することにより、シ
ール部材の外径部を係合溝に嵌合することができ
る。このため、シール部材の取付けが容易である
と共に、取付け状態において、軸方向および径方
向に余裕があるため、シール部材が正確に取付け
られたどうかの確認が容易である。 Furthermore, since the core metal with a portion cut away is attached to the seal member, by reducing the diameter of the core metal, the outer diameter portion of the seal member can be fitted into the engagement groove. Therefore, it is easy to attach the seal member, and since there is room in the axial and radial directions in the attached state, it is easy to confirm whether the seal member has been attached correctly.
第１図は、この考案に係るシール装置の一実施
例を示す一部切欠正面図、第２図は同上のシール
部材の取付け部の拡大断面図、第３図は同上シー
ル部材の組み込み前の状態の断面図、第４図は同
上シール部材の他の実施例を示す断面図、第５図
は同上シール部材の取付け状態を示す断面図、第
６図は従来のシール装置を示す断面図である。
１……外輪、５……係合溝、６……シール部
材、７……内径シールリツプ、８……芯金、９…
…外径シールリツプ、１０……環状突出部。
Fig. 1 is a partially cutaway front view showing an embodiment of the sealing device according to the invention, Fig. 2 is an enlarged cross-sectional view of the mounting portion of the above sealing member, and Fig. 3 is a view of the above sealing member before being assembled. FIG. 4 is a sectional view showing another embodiment of the above sealing member, FIG. 5 is a sectional view showing the installed state of the above sealing member, and FIG. 6 is a sectional view showing a conventional sealing device. be. DESCRIPTION OF SYMBOLS 1... Outer ring, 5... Engaging groove, 6... Seal member, 7... Inner seal lip, 8... Core metal, 9...
...Outer diameter seal lip, 10...Annular protrusion.
Claims (1)
部材の外径部を嵌合し、シール部材の内径部に、
外輪側面に向けてテーパ状の内径シールリツプを
設け、この内径シールリツプの内径部を軸の外径
面に接触させるリニアボールベアリングのシール
装置において、前記シール部材の外径部と係合溝
のはめ合いを軸方向および径方向の２方向に余裕
をもつたはめ合いとし、そのシール部材に、外径
部が上記係合溝内に臨む一部が切り離された環状
の芯金を取付け、上記シール部材の外側面におけ
る外周部に外径シールリツプを形成し、この外径
シールリツプを、前記係合溝と外輪側面間に形成
された環状突出部の内径面に弾性的に当接させた
ことを特徴とするリニアボールベアリングのシー
ル装置。 The outer diameter part of the seal member is fitted into the engagement grooves formed on both ends of the inner diameter surface of the outer ring, and the inner diameter part of the seal member is
In a sealing device for a linear ball bearing, in which an inner diameter seal lip is provided with a tapered shape toward the side surface of an outer ring, and the inner diameter part of the inner diameter seal lip is brought into contact with the outer diameter surface of a shaft, the outer diameter part of the seal member and the engagement groove fit together. are fitted with a margin in two directions, axial and radial, and a partially cut-off annular core metal whose outer diameter portion faces into the engagement groove is attached to the seal member, and the seal member An outer diameter seal lip is formed on the outer periphery of the outer surface of the ring, and the outer diameter seal lip is elastically brought into contact with the inner diameter surface of an annular protrusion formed between the engagement groove and the outer ring side surface. Sealing device for linear ball bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987056345U JPH0516410Y2 (en) | 1987-04-13 | 1987-04-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987056345U JPH0516410Y2 (en) | 1987-04-13 | 1987-04-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63162129U JPS63162129U (en) | 1988-10-24 |
| JPH0516410Y2 true JPH0516410Y2 (en) | 1993-04-30 |
Family
ID=30885075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987056345U Expired - Lifetime JPH0516410Y2 (en) | 1987-04-13 | 1987-04-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0516410Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007012648A1 (en) * | 2007-03-16 | 2008-09-25 | Ab Skf | Seal in a linear roller bearing |
| US8382374B2 (en) * | 2007-03-29 | 2013-02-26 | Thk Co., Ltd. | Sealing member for rolling device and rolling device |
| DE102008061888A1 (en) * | 2008-12-11 | 2010-06-17 | Schaeffler Kg | Bearing arrangement for supporting a shaft, Schaltdombaueinheit with the bearing assembly and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53117152A (en) * | 1977-03-18 | 1978-10-13 | Skf Ind Trading & Dev | Ball bush |
| JPS5548180U (en) * | 1978-09-25 | 1980-03-29 | ||
| JPS55149419A (en) * | 1979-02-26 | 1980-11-20 | Schmid Sro Kugellager | Ball type axitial and rotational direction guid element |
| JPS5911771A (en) * | 1982-07-12 | 1984-01-21 | Kansai Electric Power Co Inc:The | Opening and closing circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60156218U (en) * | 1984-03-27 | 1985-10-17 | 日本精工株式会社 | Sealed linear ball bearing |
-
1987
- 1987-04-13 JP JP1987056345U patent/JPH0516410Y2/ja not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53117152A (en) * | 1977-03-18 | 1978-10-13 | Skf Ind Trading & Dev | Ball bush |
| JPS5548180U (en) * | 1978-09-25 | 1980-03-29 | ||
| JPS55149419A (en) * | 1979-02-26 | 1980-11-20 | Schmid Sro Kugellager | Ball type axitial and rotational direction guid element |
| JPS5911771A (en) * | 1982-07-12 | 1984-01-21 | Kansai Electric Power Co Inc:The | Opening and closing circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63162129U (en) | 1988-10-24 |
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