JPS6435116A - Bearing device - Google Patents

Bearing device

Info

Publication number
JPS6435116A
JPS6435116A JP19172487A JP19172487A JPS6435116A JP S6435116 A JPS6435116 A JP S6435116A JP 19172487 A JP19172487 A JP 19172487A JP 19172487 A JP19172487 A JP 19172487A JP S6435116 A JPS6435116 A JP S6435116A
Authority
JP
Japan
Prior art keywords
thrust bearing
sleeve
shaft body
abrasion
endface
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
Application number
JP19172487A
Other languages
Japanese (ja)
Other versions
JP2504063B2 (en
Inventor
Ikunori Sakatani
Katsuhiko Tanaka
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 JP62191724A priority Critical patent/JP2504063B2/en
Priority to US07/176,038 priority patent/US4856918A/en
Publication of JPS6435116A publication Critical patent/JPS6435116A/en
Application granted granted Critical
Publication of JP2504063B2 publication Critical patent/JP2504063B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Sliding-Contact Bearings (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

PURPOSE:To reduce abrasion of thrust bearing face by forming a spherical thrust bearing secured to one endface of a sleeve from super hard alloy. CONSTITUTION:A thrust bearing, i.e. a spherical body 15, is pressure secured to the axial upper end of a sleeve 12 and faced with the upper endface 10A of a shaft body 10 so as to support the sleeve 12. The shaft body 10 is thermally treated, and the thrust bearing 15 is formed from super hard alloy. An air vent 16 for discharging air in a space between the upper end portion of the shaft body 10 and the thrust bearing 15 is made axially through the inner circumferential face at the upper end portion of the sleeve 12 so as to discharge foam mixed in lubricant. With such arrangement, friction powder is hardly produced in the thrust bearing 15, abrasion is not promoted and abrasion of the bearing face 10A of the shaft body is reduced considerably thus maintaining high axial accuracy for long term.
JP62191724A 1987-03-10 1987-07-31 Bearing device Expired - Fee Related JP2504063B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62191724A JP2504063B2 (en) 1987-07-31 1987-07-31 Bearing device
US07/176,038 US4856918A (en) 1987-03-10 1988-03-09 Bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62191724A JP2504063B2 (en) 1987-07-31 1987-07-31 Bearing device

Publications (2)

Publication Number Publication Date
JPS6435116A true JPS6435116A (en) 1989-02-06
JP2504063B2 JP2504063B2 (en) 1996-06-05

Family

ID=16279432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62191724A Expired - Fee Related JP2504063B2 (en) 1987-03-10 1987-07-31 Bearing device

Country Status (1)

Country Link
JP (1) JP2504063B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004347126A (en) * 2004-07-28 2004-12-09 Ntn Corp Dynamic pressure bearing unit
JP2009257349A (en) * 2008-04-11 2009-11-05 Mitsubishi Heavy Ind Ltd Bearing device and rotary machine
JP2013137082A (en) * 2011-12-28 2013-07-11 Abico Gijutsu Kenkyusho:Kk Bearing and grinding device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127518U (en) * 1973-03-05 1974-11-01
JPS5854223A (en) * 1981-09-25 1983-03-31 Nippon Seiko Kk Spindle device of dynamic pressure type
JPS59142516U (en) * 1983-03-14 1984-09-22 キヤノン株式会社 Hydrodynamic bearing unit
JPS60179517A (en) * 1984-02-24 1985-09-13 Canon Inc Dynamic pressure pneumatic bearing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127518U (en) * 1973-03-05 1974-11-01
JPS5854223A (en) * 1981-09-25 1983-03-31 Nippon Seiko Kk Spindle device of dynamic pressure type
JPS59142516U (en) * 1983-03-14 1984-09-22 キヤノン株式会社 Hydrodynamic bearing unit
JPS60179517A (en) * 1984-02-24 1985-09-13 Canon Inc Dynamic pressure pneumatic bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004347126A (en) * 2004-07-28 2004-12-09 Ntn Corp Dynamic pressure bearing unit
JP2009257349A (en) * 2008-04-11 2009-11-05 Mitsubishi Heavy Ind Ltd Bearing device and rotary machine
JP2013137082A (en) * 2011-12-28 2013-07-11 Abico Gijutsu Kenkyusho:Kk Bearing and grinding device

Also Published As

Publication number Publication date
JP2504063B2 (en) 1996-06-05

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees