JPH0439417U - - Google Patents
Info
- Publication number
- JPH0439417U JPH0439417U JP8142890U JP8142890U JPH0439417U JP H0439417 U JPH0439417 U JP H0439417U JP 8142890 U JP8142890 U JP 8142890U JP 8142890 U JP8142890 U JP 8142890U JP H0439417 U JPH0439417 U JP H0439417U
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- housing
- annular groove
- bearing device
- case
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Landscapes
- Turning (AREA)
- Support Of The Bearing (AREA)
- Bearings For Parts Moving Linearly (AREA)
Description
第１図は本考案に係る一実施例である軸受装置
を備えた工作機械の主軸部を一部断面で示す側面
図、第２図は同軸受装置を拡大して示す側面断面
図、第３図に従来の複列アンギユラ玉軸受とスラ
イド軸受とを組み合わせた状態を示す第２図に対
応する側面断面図である。
１……軸受装置、２……主軸（軸部）、４……
複列アンギユラ玉軸受、４ａ……内輪、４ｂ……
外輪、４ｃ……鋼球（転動体）、６……主軸ケー
ス（ハウジング部）、７……支持穴、７ｂ……後
端部（軌道面）、１０……軸受ケース、１０ａ…
…内周面、１０ｂ……外周面、１４……環状溝、
１５……鋼球、１７……挿入穴（転動体挿入用）
、２０……圧電アクチユエータ。
Fig. 1 is a side view partially showing a main shaft portion of a machine tool equipped with a bearing device according to an embodiment of the present invention; Fig. 2 is a side sectional view showing an enlarged view of the bearing device; FIG. 2 is a side cross-sectional view corresponding to FIG. 2 showing a state in which a conventional double-row angular ball bearing and a slide bearing are combined. 1...Bearing device, 2...Main shaft (shaft portion), 4...
Double row angular ball bearing, 4a...inner ring, 4b...
Outer ring, 4c...Steel ball (rolling element), 6...Main shaft case (housing part), 7...Support hole, 7b...Rear end (raceway surface), 10...Bearing case, 10a...
...inner circumferential surface, 10b...outer circumferential surface, 14... annular groove,
15... Steel ball, 17... Insertion hole (for rolling element insertion)
, 20...Piezoelectric actuator.
Claims (1)
なる軸受において、 前記内輪が軸部の外周に固定され、 前記外輪が軸受ケースの内周に一体的に固定さ
れ、 該軸受ケースの円筒状外周面に、複数の環状溝
が円周方向へ全周にわたり平行して設けられ、 該環状溝内に、転動体が、この環状溝とハウジ
ング側の軌道面との間で転動可能に配列されて、
該ハウジングと前記外輪との軸方向への相対的な
移動が可能とされている ことを特徴とする軸受装置。 (2) 前記ハウジングの前記環状溝に対応した位
置に、転動体挿入用の挿入穴が貫設されている請
求項第１項記載の軸受装置。 (3) 前記軸部が工作機械の主軸であるとともに
、前記ハウジングが工作機械の主軸ケースである
請求項第１項記載の軸受装置。[Claims for Utility Model Registration] (1) In a bearing in which rolling elements are arranged so as to be able to roll between inner and outer rings, the inner ring is fixed to the outer periphery of a shaft portion, and the outer ring is integrated to the inner periphery of a bearing case. A plurality of annular grooves are provided in the cylindrical outer peripheral surface of the bearing case in parallel over the entire circumference in the circumferential direction, and within the annular groove, rolling elements are arranged between the annular groove and the housing side. Arranged to be able to roll between the raceway surface,
A bearing device characterized in that the housing and the outer ring are allowed to move relative to each other in the axial direction. (2) The bearing device according to claim 1, wherein an insertion hole for inserting a rolling element is provided through the housing at a position corresponding to the annular groove. (3) The bearing device according to claim 1, wherein the shaft portion is a main shaft of a machine tool, and the housing is a main shaft case of the machine tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8142890U JP2541452Y2 (en) | 1990-07-30 | 1990-07-30 | Bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8142890U JP2541452Y2 (en) | 1990-07-30 | 1990-07-30 | Bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0439417U true JPH0439417U (en) | 1992-04-03 |
| JP2541452Y2 JP2541452Y2 (en) | 1997-07-16 |
Family
ID=31627367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8142890U Expired - Fee Related JP2541452Y2 (en) | 1990-07-30 | 1990-07-30 | Bearing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2541452Y2 (en) |
-
1990
- 1990-07-30 JP JP8142890U patent/JP2541452Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2541452Y2 (en) | 1997-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62124920U (en) | ||
| JPH0439417U (en) | ||
| JPH0247293Y2 (en) | ||
| JPH0482425U (en) | ||
| JPH0287933U (en) | ||
| JPS58114919U (en) | Lubricant retention mechanism for double row rolling bearings | |
| JPS62110626U (en) | ||
| JPH01174629U (en) | ||
| JPS6239021U (en) | ||
| JPH0482424U (en) | ||
| JPS59152218U (en) | Rolling bearing device with separate inner and outer rings | |
| JPH0475221U (en) | ||
| JPH0474726U (en) | ||
| JPH0388019U (en) | ||
| JPS63110194U (en) | ||
| JPH0320726U (en) | ||
| JPS61184134U (en) | ||
| JPH0329721U (en) | ||
| JPH02130802U (en) | ||
| JPH02114224U (en) | ||
| JPH0386215U (en) | ||
| JPS6222320U (en) | ||
| JPS61135020U (en) | ||
| JPS61139311U (en) | ||
| JPH02101123U (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |