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WO2009060715A1 - Bearing for alternator - Google Patents

Bearing for alternator Download PDF

Info

Publication number
WO2009060715A1
WO2009060715A1 PCT/JP2008/069090 JP2008069090W WO2009060715A1 WO 2009060715 A1 WO2009060715 A1 WO 2009060715A1 JP 2008069090 W JP2008069090 W JP 2008069090W WO 2009060715 A1 WO2009060715 A1 WO 2009060715A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
ring
alternator
seal
outer ring
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.)
Ceased
Application number
PCT/JP2008/069090
Other languages
French (fr)
Japanese (ja)
Inventor
Takahiro Wakuda
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.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co 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 NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of WO2009060715A1 publication Critical patent/WO2009060715A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
    • F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
    • F16C33/7853—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race
    • F16C33/7856—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with one or more sealing lips to contact the inner race with a single sealing lip
    • 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
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
    • F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
    • 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
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Bearings (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

A front bearing (21) as an alternator bearing has an inner ring (22) having circumferential grooves (22b) at axially opposite ends of the outer diameter surface of the inner ring, an outer ring (23) having circumferential grooves (23b) at axially opposite ends of the inner diameter surface of the outer ring, rolling bodies (24) arranged between the inner ring (22) and the outer ring (23), and circular ring-shaped seals (26) as sealing members for sealing the gap between the inner and outer rings (22, 23). The seals (26) each have a fixed section (26c) provided on the outer periphery of the seal and fixed to the outer ring (23), a contact lip (26e) provided on the inner periphery of the seal and making contact with a side wall of a circumferential groove (22b), and a projection (26h) projecting from a wall surface of the seal (26), which wall surface faces axially inwardly of the bearing, toward the side wall of the circumferential groove (22b). Sealing performance of the alternator bearing, which supports the rotating shaft of an alternator, is not degraded by external factors such as a temperature difference and a pressure difference.
PCT/JP2008/069090 2007-11-09 2008-10-22 Bearing for alternator Ceased WO2009060715A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-291928 2007-11-09
JP2007291928A JP5371230B2 (en) 2007-11-09 2007-11-09 Alternator bearing

Publications (1)

Publication Number Publication Date
WO2009060715A1 true WO2009060715A1 (en) 2009-05-14

Family

ID=40625615

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/069090 Ceased WO2009060715A1 (en) 2007-11-09 2008-10-22 Bearing for alternator

Country Status (2)

Country Link
JP (1) JP5371230B2 (en)
WO (1) WO2009060715A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195822A (en) * 2013-04-15 2013-07-10 宁波三泰轴承有限公司 Waterproof and air leakage-proof bearing
US20150247533A1 (en) * 2012-10-25 2015-09-03 Schaeffler Technologies AG & Co. KG Sealing element for a rolling bearing
CN111433473A (en) * 2017-12-06 2020-07-17 舍弗勒技术股份两合公司 Rolling bearing with integrated pressure seal

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6199120B2 (en) * 2013-09-03 2017-09-20 Nok株式会社 Dust seal
JP7137310B2 (en) * 2018-01-09 2022-09-14 Ntn株式会社 Rolling bearing and its design method
CN111520399A (en) * 2020-04-20 2020-08-11 人本集团有限公司 Novel deep groove ball bearing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004162833A (en) * 2002-11-14 2004-06-10 Nsk Ltd Rolling bearing
JP2005106078A (en) * 2003-09-26 2005-04-21 Nsk Ltd Clutch pulley unit
JP2005188588A (en) * 2003-12-25 2005-07-14 Nsk Ltd Rolling bearing
JP2006258131A (en) * 2005-03-15 2006-09-28 Nsk Ltd Rolling bearing
JP2006329397A (en) * 2005-05-30 2006-12-07 Jtekt Corp Sealing device
JP2006336734A (en) * 2005-06-01 2006-12-14 Nsk Ltd Rolling bearing with sealing device
JP2007270969A (en) * 2006-03-31 2007-10-18 Jtekt Corp Rolling bearing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004162833A (en) * 2002-11-14 2004-06-10 Nsk Ltd Rolling bearing
JP2005106078A (en) * 2003-09-26 2005-04-21 Nsk Ltd Clutch pulley unit
JP2005188588A (en) * 2003-12-25 2005-07-14 Nsk Ltd Rolling bearing
JP2006258131A (en) * 2005-03-15 2006-09-28 Nsk Ltd Rolling bearing
JP2006329397A (en) * 2005-05-30 2006-12-07 Jtekt Corp Sealing device
JP2006336734A (en) * 2005-06-01 2006-12-14 Nsk Ltd Rolling bearing with sealing device
JP2007270969A (en) * 2006-03-31 2007-10-18 Jtekt Corp Rolling bearing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150247533A1 (en) * 2012-10-25 2015-09-03 Schaeffler Technologies AG & Co. KG Sealing element for a rolling bearing
CN103195822A (en) * 2013-04-15 2013-07-10 宁波三泰轴承有限公司 Waterproof and air leakage-proof bearing
CN111433473A (en) * 2017-12-06 2020-07-17 舍弗勒技术股份两合公司 Rolling bearing with integrated pressure seal

Also Published As

Publication number Publication date
JP5371230B2 (en) 2013-12-18
JP2009115283A (en) 2009-05-28

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