JPS646517A - Roller bearing - Google Patents

Roller bearing

Info

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
Application number
JP16111787A
Other languages
Japanese (ja)
Inventor
Yoshiaki Onose
Yasushi Morita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK Ltd
Original Assignee
NSK Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NSK Ltd filed Critical NSK Ltd
Priority to JP16111787A priority Critical patent/JPS646517A/en
Publication of JPS646517A publication Critical patent/JPS646517A/en
Pending legal-status Critical Current

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.
JP16111787A 1987-06-30 1987-06-30 Roller bearing Pending JPS646517A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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