JP4278461B2 - 軸受ユニット - Google Patents
軸受ユニット Download PDFInfo
- Publication number
- JP4278461B2 JP4278461B2 JP2003303109A JP2003303109A JP4278461B2 JP 4278461 B2 JP4278461 B2 JP 4278461B2 JP 2003303109 A JP2003303109 A JP 2003303109A JP 2003303109 A JP2003303109 A JP 2003303109A JP 4278461 B2 JP4278461 B2 JP 4278461B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- ball bearing
- bearing
- double
- disposed
- 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
- 238000005096 rolling process Methods 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 1
Images
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
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
-
- 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
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
-
- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
Description
11 軸
11a 軸フランジ
11b 軸ネジ部
20 複列密封玉軸受
21,22 玉軸受
23,24 内輪
23a,24a 内輪軌道
25 内輪スペーサ
26,27 外輪
26a,27a 外輪軌道
28 玉
29 保持器
30 シール部材
40 部品挿入装置
41 カム筒
42 供給カップ
Claims (4)
- 工作機械及び一般組立機等に使用される軸受ユニットであって、
凹凸カム面を有するカム筒と、
前記カム筒の軸心を中心に前記凹凸カム面に倣って回転駆動されるとともに前記カム筒の軸心に沿った上下移動を案内可能な上下案内部を有する供給カップと、
外周面に内輪軌道を有する一対の内輪と、内周面に外輪軌道を有する一対の外輪と、前記内輪軌道及び外輪軌道間に転動自在に介在する複数の玉と、該玉をそれぞれ転動自在に保持する保持器と、前記玉に対して少なくとも軸方向一方側に配置されて潤滑剤が充填される内部空間と外部とを仕切るシール部材と、前記一対の内輪間に配置される内輪スペーサと、を有する複列密封玉軸受と、
フランジを有し、前記複列密封玉軸受が軸全長の半分以上にわたって配置されると共に、前記複列密封玉軸受が配置されていない部分に固定用のねじ部が形成される軸と、を備え、
前記複列密封玉軸受の一方の玉軸受は、前記カム筒の前記凹凸カム面と転動可能に接触するように配置され、前記供給カップの回転運動を案内し、
前記複列密封玉軸受の他方の玉軸受は、前記供給カップの前記上下案内部と転動可能に接触するように配置され、前記供給カップの上下運動を案内することを特徴とする軸受ユニット。 - 前記軸における前記フランジを挟んで前記玉軸受が配置された側の軸端部には、前記軸の他の部位より拡径された拡径部が設けられることを特徴とする請求項1記載の軸受ユニット。
- 前記拡径部が、前記軸の他の部位との径方向の寸法差を前記軸端部に向けて徐々に拡大するように、テーパー状に形成されていることを特徴とする請求項2記載の軸受ユニット。
- 前記拡径部と前記軸の他の部位との径方向の最大寸法差が、半径で約40μmであることを特徴とする請求項2又は請求項3記載の軸受ユニット。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003303109A JP4278461B2 (ja) | 2002-08-27 | 2003-08-27 | 軸受ユニット |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002247425 | 2002-08-27 | ||
JP2003303109A JP4278461B2 (ja) | 2002-08-27 | 2003-08-27 | 軸受ユニット |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004125171A JP2004125171A (ja) | 2004-04-22 |
JP4278461B2 true JP4278461B2 (ja) | 2009-06-17 |
Family
ID=32301208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003303109A Expired - Lifetime JP4278461B2 (ja) | 2002-08-27 | 2003-08-27 | 軸受ユニット |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4278461B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103174757A (zh) * | 2011-12-21 | 2013-06-26 | 日本精工株式会社 | 轴承单元和使用其的悠悠球,以及滚珠轴承和使用其的悠悠球 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD748740S1 (en) | 2012-08-14 | 2016-02-02 | Nsk Ltd. | Bearing for yo-yo |
CN114110127B (zh) * | 2021-08-31 | 2023-06-02 | 西南电子技术研究所(中国电子科技集团公司第十研究所) | 双深沟球轴承预紧偏心凸轮随动器 |
-
2003
- 2003-08-27 JP JP2003303109A patent/JP4278461B2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103174757A (zh) * | 2011-12-21 | 2013-06-26 | 日本精工株式会社 | 轴承单元和使用其的悠悠球,以及滚珠轴承和使用其的悠悠球 |
Also Published As
Publication number | Publication date |
---|---|
JP2004125171A (ja) | 2004-04-22 |
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