JPS646517A - Roller bearing - Google Patents
Roller bearingInfo
- Publication number
- JPS646517A JPS646517A JP16111787A JP16111787A JPS646517A JP S646517 A JPS646517 A JP S646517A JP 16111787 A JP16111787 A JP 16111787A JP 16111787 A JP16111787 A JP 16111787A JP S646517 A JPS646517 A JP S646517A
- Authority
- JP
- Japan
- Prior art keywords
- rotary shaft
- static electricity
- roller bearing
- metal
- rolling bodies
- 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.)
- Pending
Links
Abstract
PURPOSE:To prevent electrication of a rotary shaft with static electricity, by a method wherein the proper number of rolling bodies of a rolling bearing have conductivity. CONSTITUTION:A roller bearing is mounted in a machine tool and the like, and supports a rotary shaft 1 rotating at a high speed. EVen when the rotary shaft 1 is electrified with static electricity generated due to friction between a belt and a pulley 7, the static electricity is transferred to a casing 4 made of a metal through an outer ring 9 made of a metal, rolling bodies, having conductivity, of a plurality of rolling bodies 10, 10, an inner ring 8 made of a metal, with which a roller bearing 5 is formed, and is discharged. This constitution prevents electrification of the rotary shaft 1 with static electricity having a voltage high enough to allow the generation of spark in a fine gap between the rotary shaft 1 and the casing 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16111787A JPS646517A (en) | 1987-06-30 | 1987-06-30 | Roller bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16111787A JPS646517A (en) | 1987-06-30 | 1987-06-30 | Roller bearing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS646517A true JPS646517A (en) | 1989-01-11 |
Family
ID=15728928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16111787A Pending JPS646517A (en) | 1987-06-30 | 1987-06-30 | Roller bearing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS646517A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0389256U (en) * | 1989-12-28 | 1991-09-11 | ||
EP1148594A2 (en) * | 2000-04-20 | 2001-10-24 | Nsk Ltd | Rolling bearing unit |
JP2007275558A (en) * | 2006-03-15 | 2007-10-25 | Toshiba Corp | Medical image-interpreting apparatus and cursor movement program |
US8330717B2 (en) | 2006-03-15 | 2012-12-11 | Kabushiki Kaisha Toshiba | Medical image interpreting apparatus and cursor-moving method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS607422B2 (en) * | 1977-08-10 | 1985-02-25 | 富士通株式会社 | Transmission control method in signal transmission system |
JPS607412B2 (en) * | 1980-10-07 | 1985-02-25 | ユ−ス電機株式会社 | switching circuit |
-
1987
- 1987-06-30 JP JP16111787A patent/JPS646517A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS607422B2 (en) * | 1977-08-10 | 1985-02-25 | 富士通株式会社 | Transmission control method in signal transmission system |
JPS607412B2 (en) * | 1980-10-07 | 1985-02-25 | ユ−ス電機株式会社 | switching circuit |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0389256U (en) * | 1989-12-28 | 1991-09-11 | ||
EP1148594A2 (en) * | 2000-04-20 | 2001-10-24 | Nsk Ltd | Rolling bearing unit |
JP2007275558A (en) * | 2006-03-15 | 2007-10-25 | Toshiba Corp | Medical image-interpreting apparatus and cursor movement program |
US8330717B2 (en) | 2006-03-15 | 2012-12-11 | Kabushiki Kaisha Toshiba | Medical image interpreting apparatus and cursor-moving method |
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