JPS6487921A - Rolling bearing - Google Patents

Rolling bearing

Info

Publication number
JPS6487921A
JPS6487921A JP62242496A JP24249687A JPS6487921A JP S6487921 A JPS6487921 A JP S6487921A JP 62242496 A JP62242496 A JP 62242496A JP 24249687 A JP24249687 A JP 24249687A JP S6487921 A JPS6487921 A JP S6487921A
Authority
JP
Japan
Prior art keywords
gaps
lubricant
raceway track
magnetic
air gap
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
JP62242496A
Other languages
Japanese (ja)
Inventor
Kiyotoshi Ueda
Yuichi Sakamoto
Masayuki Hosoya
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 JP62242496A priority Critical patent/JPS6487921A/en
Publication of JPS6487921A publication Critical patent/JPS6487921A/en
Pending legal-status Critical Current

Links

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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/762—Sealings of ball or roller bearings by means of a fluid
    • F16C33/763—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap
    • F16C33/765—Sealings of ball or roller bearings by means of a fluid retained in the sealing gap by a magnetic field

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Bearings (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

PURPOSE:To prevent a magnetic fluid used as a lubricant from splashing outside by providing gaps which have magnetic fields between a pair of seal members, and a first raceway track member and setting at least one of the gaps to be an air gap. CONSTITUTION:A magnetic fluid is used as a lubricant, while gaps g2, g2 having magnetic fields generated by circular magnets 28, 28 are formed between a pair of seal members C1, C1 and a first raceway track member 21, at least one of gaps is an air gap. Therefore, even if the magnetic fluid as the lubricant splashes by a relative rotation between the first and a second raceway track members 21, 22, and the fine splash thereof is going to pass the air gap g2 and scatters outside, it is captured by means of the magnetic field and adheres to the seal members C1 or the first raceway track member 21. In addition, since the inner and outer spaces of a bearing are communicated to each other through at least one of gaps g2, the fluid never breaks through the other gap g2 and splashes therearound due to its temperature rise even if it is interposed in the gap g2.
JP62242496A 1987-09-29 1987-09-29 Rolling bearing Pending JPS6487921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242496A JPS6487921A (en) 1987-09-29 1987-09-29 Rolling bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242496A JPS6487921A (en) 1987-09-29 1987-09-29 Rolling bearing

Publications (1)

Publication Number Publication Date
JPS6487921A true JPS6487921A (en) 1989-04-03

Family

ID=17089953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242496A Pending JPS6487921A (en) 1987-09-29 1987-09-29 Rolling bearing

Country Status (1)

Country Link
JP (1) JPS6487921A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6633096B2 (en) * 2000-10-11 2003-10-14 Denso Corporation Alternator
JP2011231889A (en) * 2010-04-28 2011-11-17 Globeride Inc Bearing with magnetic fluid seal
JP2015065900A (en) * 2013-09-30 2015-04-13 グローブライド株式会社 Fishing reel
JP2015082976A (en) * 2013-10-25 2015-04-30 グローブライド株式会社 Fishing reel
JP2015089358A (en) * 2013-11-06 2015-05-11 グローブライド株式会社 Bearing with magnetic fluid seal, and fishing reel provided with magnetic fluid seal bearing
JP2015152096A (en) * 2014-02-14 2015-08-24 ミネベア株式会社 Pivot assembly bearing device and magnetic head drive device using the same
KR20160014552A (en) * 2014-07-29 2016-02-11 글로브라이드 가부시키가이샤 Bearing with magnetic fluid seal and reel for fishing including the same
JP2016102571A (en) * 2014-11-28 2016-06-02 グローブライド株式会社 Bearing with magnetic fluid seal and reel for fishing including the same
US9546685B2 (en) 2012-04-26 2017-01-17 Globeride, Inc. Bearing with magnetic fluid seal
US20170058955A1 (en) * 2015-08-28 2017-03-02 Globeride, Inc. Magnetic fluid sealed bearing

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6633096B2 (en) * 2000-10-11 2003-10-14 Denso Corporation Alternator
JP2011231889A (en) * 2010-04-28 2011-11-17 Globeride Inc Bearing with magnetic fluid seal
US9546685B2 (en) 2012-04-26 2017-01-17 Globeride, Inc. Bearing with magnetic fluid seal
US9611893B2 (en) 2012-04-26 2017-04-04 Globeride, Inc. Bearing with magnetic fluid seal
JP2015065900A (en) * 2013-09-30 2015-04-13 グローブライド株式会社 Fishing reel
JP2015082976A (en) * 2013-10-25 2015-04-30 グローブライド株式会社 Fishing reel
JP2015089358A (en) * 2013-11-06 2015-05-11 グローブライド株式会社 Bearing with magnetic fluid seal, and fishing reel provided with magnetic fluid seal bearing
JP2015152096A (en) * 2014-02-14 2015-08-24 ミネベア株式会社 Pivot assembly bearing device and magnetic head drive device using the same
KR20160014552A (en) * 2014-07-29 2016-02-11 글로브라이드 가부시키가이샤 Bearing with magnetic fluid seal and reel for fishing including the same
JP2016102571A (en) * 2014-11-28 2016-06-02 グローブライド株式会社 Bearing with magnetic fluid seal and reel for fishing including the same
US20170058955A1 (en) * 2015-08-28 2017-03-02 Globeride, Inc. Magnetic fluid sealed bearing
US9835202B2 (en) * 2015-08-28 2017-12-05 Globeride, Inc. Magnetic fluid sealed bearing

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