JPH0122973Y2 - - Google Patents
Info
- Publication number
- JPH0122973Y2 JPH0122973Y2 JP5770882U JP5770882U JPH0122973Y2 JP H0122973 Y2 JPH0122973 Y2 JP H0122973Y2 JP 5770882 U JP5770882 U JP 5770882U JP 5770882 U JP5770882 U JP 5770882U JP H0122973 Y2 JPH0122973 Y2 JP H0122973Y2
- Authority
- JP
- Japan
- Prior art keywords
- inner ring
- raceway surface
- double
- ball
- ring
- 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
Links
- 239000002184 metal Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
-
- 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
- F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
- F16C33/7873—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section
- F16C33/7876—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a single sealing ring of generally L-shaped cross-section with sealing lips
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【考案の詳細な説明】
本考案は複列アンギユラコンタクト玉軸受に関
するもので、詳しくはこの種の軸受を例えば自動
車の車輪用軸受等に使用する場合、グリース補
給、軸受の交換などメンテナンスの必要があり、
その際軸受を分解するが、この分解時軸受を損傷
させるおそれの少ないしかも分解容易な軸受に関
するものである。[Detailed description of the invention] This invention relates to double-row angular contact ball bearings. Specifically, when this type of bearing is used, for example, in automobile wheel bearings, maintenance such as replenishment of grease and replacement of the bearing is required. There is,
At that time, the bearing is disassembled, and the present invention relates to a bearing that is easy to disassemble and has little risk of damaging the bearing during disassembly.
第１図は従来の軸受の構造を示すもので、１ａ
は外輪、２ａは内輪、２１ａは内輪小外径部に設
けられた内輪引抜用の略矩形の周みぞ、３ａはボ
ールであり前記外輪、内輪と接触角αになるよう
に組付けられている。又、４ａはプラスチツクな
どで成型された保持器、５ａは前記外輪と前記内
輪とのなす環状空間に介装されたシール体であ
り、鋼板製の芯金５１ａ、ゴム等の弾性部材より
なるシールリツプ５２ａ、前記シールリツプを前
記内輪外径に付勢するスプリング５３ａから成
り、前記外輪の内径部に嵌着され、前記内輪外径
と前記シールリツプ部で摺動するようになつてい
る。 Figure 1 shows the structure of a conventional bearing, 1a
2a is an outer ring, 2a is an inner ring, 21a is a substantially rectangular circumferential groove for pulling out the inner ring provided on the small outer diameter part of the inner ring, and 3a is a ball, which is assembled to the outer ring and the inner ring to form a contact angle α. . Further, 4a is a cage molded from plastic or the like, and 5a is a seal body interposed in the annular space formed by the outer ring and the inner ring, and includes a core metal 51a made of a steel plate and a seal lip made of an elastic member such as rubber. 52a, a spring 53a that biases the seal lip against the outer diameter of the inner ring, and is fitted onto the inner diameter of the outer ring so as to slide between the outer diameter of the inner ring and the seal lip.
そして、前記外輪はハウジング（車輪の一部）
６ａに嵌合されハウジング肩部６１ａで軸方向に
位置決めされており、内輪は軸７ａにしまりばめ
され軸の肩部７１ａにて位置決めされている。さ
らに、軸受内部にはグリース８ａが充填されてい
る。 And the outer ring is a housing (part of the wheel)
6a and is positioned in the axial direction by the housing shoulder 61a, and the inner ring is tightly fitted onto the shaft 7a and positioned by the shoulder 71a of the shaft. Furthermore, the inside of the bearing is filled with grease 8a.
このように形成されている上記従来の軸受の分
解方法を第２図に基いて説明すると、軸受は一般
的にたて型におかれて分解されるが、その際軸７
ａに引抜力を加え矢印Ａの方向に軸受を抜くと
き、先ず受台８ａで支持された外輪側と図中上側
の内輪が軸から引抜かれ、前記軸の肩部７１ａ側
に取付けられている内輪２ａは前記軸としまりば
めになつているために軸側に残るので、次に前記
内輪の周みぞ２１ａに引抜き治具を掛けて内輪を
軸から引抜くことになる。この場合、はじめ外輪
を引抜く際、ボール３ａ（第２図における下側の
ボール）は下側へ最初の中心点O1から寸法Ｂだ
けO2へ移動して前記周みぞ部にくるが、その時
のボール内接円径Ｃが内輪小外径ｂより小さくな
つて、前記周みぞのエツヂ部２１１ａ（引抜治具
を掛止するためにエツヂが必要である）と前記外
輪みぞの肩部１１ａとの間で抑止されることにな
り、その結果、さらに引抜力を増加するとボール
にきずをつけ、再組立後の再使用中早期に軸受破
損を招来する原因になる。従つて本考案は、前記
問題点を鑑み、分解時にボールにきずをつけない
構成とした軸受を提供することを目的としてい
る。 The method of disassembling the above-mentioned conventional bearing formed in this way will be explained based on FIG.
When applying a pulling force to a and pulling out the bearing in the direction of arrow A, first the outer ring supported by the pedestal 8a and the inner ring on the upper side in the figure are pulled out from the shaft and attached to the shoulder 71a of the shaft. Since the inner ring 2a remains on the shaft side because it is interference-fitted with the shaft, next, a pulling jig is applied to the circumferential groove 21a of the inner ring and the inner ring is pulled out from the shaft. In this case, when first pulling out the outer ring, the ball 3a (the lower ball in FIG. 2) moves downward from the initial center point O1 to the dimension B O2 and comes to the circumferential groove. At this time, the ball inscribed circle diameter C becomes smaller than the inner ring small outer diameter b, and the edge part 211a of the circumferential groove (the edge is necessary to hook the extraction jig) and the shoulder part 11a of the outer ring groove As a result, if the pull-out force is further increased, the ball will be damaged, leading to early bearing damage during reuse after reassembly. SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a bearing that does not damage the balls during disassembly.
次に本考案の実施例を第３図、第４図において
説明する。第３図は第１実施例であつて基本的構
成は第１図と同一であるので説明は省略して要部
のみ示すが、同図においてシール体５は、鋼板製
芯金５１によつて補強されており、該芯金５１
は、ボール側端部に半径方向の内方に延び、か
つ、その内径が保持器大径側端面４１の外径より
も小径のフランジ５３を備え、しかも、前記大径
側端面４１と、これと対向する前記フランジ内側
面５３１までの距離Ａが第２図において説明した
ボールの移動距離Ｂよりも小なるように設定して
ある。又、第４図には冠型の保持器１４を使用し
た第２実施例を示すが、同図にあつてはシール体
１５の鋼板製芯金１５１のボール側端面に略ボー
ルピツチ円径まで延在するフランジ部１５３を設
けることによつて内側面を形成し、該フランジ部
とボールとの距離Ａが前記ボールの移動距離Ｂよ
りも小なるように設けてある。 Next, an embodiment of the present invention will be explained with reference to FIGS. 3 and 4. FIG. 3 shows the first embodiment, and the basic configuration is the same as that in FIG. 1, so the explanation is omitted and only the main parts are shown. The core metal 51 is reinforced.
is provided with a flange 53 extending radially inward at the ball side end and having an inner diameter smaller than the outer diameter of the large diameter end surface 41 of the cage, The distance A to the inner surface 531 of the flange facing the ball is set to be smaller than the movement distance B of the ball explained in FIG. FIG. 4 shows a second embodiment using a crown-shaped retainer 14, and in this figure, a steel plate core 151 of the seal body 15 has a steel plate core 151 on the ball side end surface extending to approximately the ball pitch diameter. The inner surface is formed by providing a flange portion 153, which is provided so that the distance A between the flange portion and the ball is smaller than the moving distance B of the ball.
以上の構成にすることによつて、軸受の引抜時
ボールが軸方向に距離Ｂだけ移動する前に、前記
シール体の内側面に保持器大径側端面もしくはボ
ールが当接するため、ボール内接円径の減少量、
換言すればボールの落ち量を少く抑えることが出
来、内輪の矩形周みぞのエツヂ部と外輪のみぞ肩
部によつてボールを拘束することがなく、容易に
引抜くことが出来かつボールにきずをつけること
がないので軸受の再使用によつて問題が生じな
い。なお、シール体の取付けを実施例とは逆向き
に取付け使用した場合は、実施例における外側面
が、この考案でいう内側面となる。 With the above configuration, when the bearing is pulled out, before the balls move by distance B in the axial direction, the large-diameter end face of the cage or the balls come into contact with the inner surface of the seal body, so that the balls are internally connected. amount of decrease in circle diameter,
In other words, it is possible to suppress the amount of the ball falling, and the ball is not restrained by the edge of the rectangular circumferential groove of the inner ring and the shoulder of the groove of the outer ring, and can be easily pulled out without damaging the ball. There is no problem with reusing the bearings since there is no need to attach them. In addition, when the seal body is attached and used in the opposite direction to that in the embodiment, the outer surface in the embodiment becomes the inner surface in this invention.
第１図は従来の軸受の取付状態を示す縦断面
図、第２図は軸受の分解方法を示す説明図、第３
図、第４図は本考案の実施例を示し、第３図は第
１実施例の要部を示す縦断面図、第４図は第２実
施例の要部を示す縦断面図である。
符号の説明、１ａ……外輪、２ａ……内輪、３
ａ……ボール、４，１４……保持器、５，１５…
…シール、６ａ……ハウジング、７ａ……軸。
Figure 1 is a vertical cross-sectional view showing how a conventional bearing is installed, Figure 2 is an explanatory diagram showing how to disassemble the bearing, and Figure 3
3 and 4 show embodiments of the present invention, FIG. 3 is a longitudinal sectional view showing the main parts of the first embodiment, and FIG. 4 is a longitudinal sectional view showing the main parts of the second embodiment. Explanation of symbols, 1a... Outer ring, 2a... Inner ring, 3
a... Ball, 4, 14... Cage, 5, 15...
...Seal, 6a...Housing, 7a...Shaft.
Claims (1)
応する一部円弧状の単列軌道面を形成し、かつ該
軌道面の軸方向延長上に略矩形みぞを周設した２
個の内輪と、前記内外輪間に介装された転動体
と、該転動体を円周方向に等配に配置して保持す
る保持器と、前記外輪の内径に嵌着され、前記内
輪との間を密封するシール体とからなる複列アン
ギユラコンタクト玉軸受において、前記シール体
は芯金によつて補強されており、該シール体のも
つ前記芯金の転動体側の内側面と、該内側面と対
向する保持器大径側端もしくはボールまでの距離
をＡとし、内輪を軸方向に移動し、前記矩形みぞ
によつて転動体が抑止されるまでの転動体の軸方
向移動量をＢとしたとき、Ａ＜Ｂとしたことを特
徴とする複列アンギユラコンタクト玉軸受。 An outer ring formed with a double-row raceway surface, a partially arc-shaped single-row raceway surface corresponding to the raceway surface, and a substantially rectangular groove provided around the axial extension of the raceway surface.
an inner ring, a rolling element interposed between the inner and outer rings, a retainer that holds the rolling elements by disposing them equidistantly in the circumferential direction, and a retainer that is fitted onto the inner diameter of the outer ring and that is connected to the inner ring. In a double row angular contact ball bearing, the seal body is reinforced by a core metal, and the seal body has an inner surface of the core metal on the rolling element side, and The distance from the inner surface to the large-diameter end of the cage or the balls facing the inner surface is A, and the amount of axial movement of the rolling elements until the inner ring is moved in the axial direction and the rolling elements are restrained by the rectangular grooves. A double-row angular contact ball bearing characterized in that, where B is A<B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5770882U JPS58161226U (en) | 1982-04-22 | 1982-04-22 | Double row angular contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5770882U JPS58161226U (en) | 1982-04-22 | 1982-04-22 | Double row angular contact ball bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58161226U JPS58161226U (en) | 1983-10-27 |
| JPH0122973Y2 true JPH0122973Y2 (en) | 1989-07-13 |
Family
ID=30068139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5770882U Granted JPS58161226U (en) | 1982-04-22 | 1982-04-22 | Double row angular contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58161226U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61165009A (en) * | 1985-03-01 | 1986-07-25 | Ntn Toyo Bearing Co Ltd | Angular ball bearing |
-
1982
- 1982-04-22 JP JP5770882U patent/JPS58161226U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58161226U (en) | 1983-10-27 |
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