WO2008084761A1 - Bearing device for wheel - Google Patents

Bearing device for wheel Download PDF

Info

Publication number
WO2008084761A1
WO2008084761A1 PCT/JP2008/000008 JP2008000008W WO2008084761A1 WO 2008084761 A1 WO2008084761 A1 WO 2008084761A1 JP 2008000008 W JP2008000008 W JP 2008000008W WO 2008084761 A1 WO2008084761 A1 WO 2008084761A1
Authority
WO
WIPO (PCT)
Prior art keywords
row
balls
wheel
tapered rollers
bearing
Prior art date
Application number
PCT/JP2008/000008
Other languages
French (fr)
Japanese (ja)
Inventor
Kazuhisa Shigeoka
Original Assignee
Ntn Corporation
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
Priority claimed from JP2007001112A external-priority patent/JP2008169861A/en
Priority claimed from JP2007001111A external-priority patent/JP2008169860A/en
Application filed by Ntn Corporation filed Critical Ntn Corporation
Publication of WO2008084761A1 publication Critical patent/WO2008084761A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • 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
    • F16C19/49—Bearings with both balls and rollers
    • F16C19/492—Bearings with both balls and rollers with two or more rows with angular contact
    • F16C19/495—Bearings with both balls and rollers with two or more rows with angular contact with two rows
    • F16C19/497—Bearings with both balls and rollers with two or more rows with angular contact with two rows in O-arrangement
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/70—Diameters; Radii
    • F16C2240/80—Pitch circle diameters [PCD]
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors

Abstract

[PROBLEMS] A bearing device for a wheel, in which contradictory problems of reduction in weight and size and an increase in rigidity of the device are simultaneously solved and which has increased strength and durability. [MEANS FOR SOLVING PROBLEMS] A bearing device for a wheel, having double-row rolling bodies and in which an inner ring (6) is axially fixed by a staked section (13c) formed by plastically and radially outwardly deforming an end of a small-diameter step section (13b) of a hub ring (13). Of the double rows of rolling bodies, the outer rolling body row is composed of tapered rollers (9) and the inner rolling body row is composed of balls (10). Further, the pitch circle diameter PCDo of the tapered rollers (9) in the outer row is set greater than the pitch circle diameter PCDi of the balls (10) in the inner row. Also, the number of the tapered rollers (9) and the number of the balls (10) are set to be the same. The construction reduces the weight and size of the bearing, increases the wall thickness of the hub ring (13) to improve strength, and increase the distance between working points to enhance the rigidity and service life of the entire bearing.
PCT/JP2008/000008 2007-01-09 2008-01-09 Bearing device for wheel WO2008084761A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-001112 2007-01-09
JP2007001112A JP2008169861A (en) 2007-01-09 2007-01-09 Wheel bearing device
JP2007-001111 2007-01-09
JP2007001111A JP2008169860A (en) 2007-01-09 2007-01-09 Wheel bearing device

Publications (1)

Publication Number Publication Date
WO2008084761A1 true WO2008084761A1 (en) 2008-07-17

Family

ID=39608650

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000008 WO2008084761A1 (en) 2007-01-09 2008-01-09 Bearing device for wheel

Country Status (1)

Country Link
WO (1) WO2008084761A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002195254A (en) * 2000-12-27 2002-07-10 Ntn Corp Hub bearing unit
JP2003232343A (en) * 2002-02-06 2003-08-22 Nsk Ltd Wheel bearing equipment
JP2004169890A (en) * 2002-11-22 2004-06-17 Koyo Seiko Co Ltd Pinion shaft supporting bearing device
JP2005265194A (en) * 1996-10-25 2005-09-29 Nsk Ltd Rolling bearing and spindle device
JP2005297944A (en) * 2003-12-01 2005-10-27 Ntn Corp Bearing device for wheel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005265194A (en) * 1996-10-25 2005-09-29 Nsk Ltd Rolling bearing and spindle device
JP2002195254A (en) * 2000-12-27 2002-07-10 Ntn Corp Hub bearing unit
JP2003232343A (en) * 2002-02-06 2003-08-22 Nsk Ltd Wheel bearing equipment
JP2004169890A (en) * 2002-11-22 2004-06-17 Koyo Seiko Co Ltd Pinion shaft supporting bearing device
JP2005297944A (en) * 2003-12-01 2005-10-27 Ntn Corp Bearing device for wheel

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