HUB UNIT BEARING INNER RING AND ITS MANUFACTURING METHOD
PROBLEM TO BE SOLVED: To provide a hub unit bearing inner ring having high durability without causing delay breakage in such a corrosive environment that muddy water enters. SOLUTION: After machining a raw material of SUJ2 into a predetermined shape, the hub unit bearing inner ring is subjected to i...
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| creator | YOSHIKAWA TOMONOBU |
| description | PROBLEM TO BE SOLVED: To provide a hub unit bearing inner ring having high durability without causing delay breakage in such a corrosive environment that muddy water enters. SOLUTION: After machining a raw material of SUJ2 into a predetermined shape, the hub unit bearing inner ring is subjected to induction hardening on an inner ring raceway surface 10a and an inner peripheral face 10b externally fitted to a recessed peripheral portion 14 of a hub 12 in a range excluding a portion (a front end on the right side of a line L, as shown in Fig.2) 10c on the front end side of the hub beyond a position where the axial inner ring raceway surface 10a is formed. The hardness of a surface layer A of the inner ring raceway surface 10a and the hardness of a surface layer B in a range excluding the front end 10c of the inner peripheral face 10b are each HRC 54-65, and the hardness of the front end 10c is HRC 40 or lower. COPYRIGHT: (C)2008,JPO&INPIT |
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SOLUTION: After machining a raw material of SUJ2 into a predetermined shape, the hub unit bearing inner ring is subjected to induction hardening on an inner ring raceway surface 10a and an inner peripheral face 10b externally fitted to a recessed peripheral portion 14 of a hub 12 in a range excluding a portion (a front end on the right side of a line L, as shown in Fig.2) 10c on the front end side of the hub beyond a position where the axial inner ring raceway surface 10a is formed. The hardness of a surface layer A of the inner ring raceway surface 10a and the hardness of a surface layer B in a range excluding the front end 10c of the inner peripheral face 10b are each HRC 54-65, and the hardness of the front end 10c is HRC 40 or lower. COPYRIGHT: (C)2008,JPO&INPIT</description><language>eng</language><subject>AXLES FOR WHEELS OR CASTORS ; BEARINGS ; BLASTING ; CASTORS ; ELEMENTS OR CRANKSHAFT MECHANISMS ; ENGINEERING ELEMENTS AND UNITS ; FLEXIBLE SHAFTS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; INCREASING WHEEL ADHESION ; LIGHTING ; MECHANICAL ENGINEERING ; PERFORMING OPERATIONS ; ROTARY BODIES OTHER THAN GEARING ELEMENTS ; SHAFTS ; THERMAL INSULATION IN GENERAL ; TRANSPORTING ; VEHICLE WHEELS ; VEHICLES IN GENERAL ; WEAPONS</subject><creationdate>2007</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20071122&DB=EPODOC&CC=JP&NR=2007303587A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20071122&DB=EPODOC&CC=JP&NR=2007303587A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YOSHIKAWA TOMONOBU</creatorcontrib><title>HUB UNIT BEARING INNER RING AND ITS MANUFACTURING METHOD</title><description>PROBLEM TO BE SOLVED: To provide a hub unit bearing inner ring having high durability without causing delay breakage in such a corrosive environment that muddy water enters. SOLUTION: After machining a raw material of SUJ2 into a predetermined shape, the hub unit bearing inner ring is subjected to induction hardening on an inner ring raceway surface 10a and an inner peripheral face 10b externally fitted to a recessed peripheral portion 14 of a hub 12 in a range excluding a portion (a front end on the right side of a line L, as shown in Fig.2) 10c on the front end side of the hub beyond a position where the axial inner ring raceway surface 10a is formed. The hardness of a surface layer A of the inner ring raceway surface 10a and the hardness of a surface layer B in a range excluding the front end 10c of the inner peripheral face 10b are each HRC 54-65, and the hardness of the front end 10c is HRC 40 or lower. 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SOLUTION: After machining a raw material of SUJ2 into a predetermined shape, the hub unit bearing inner ring is subjected to induction hardening on an inner ring raceway surface 10a and an inner peripheral face 10b externally fitted to a recessed peripheral portion 14 of a hub 12 in a range excluding a portion (a front end on the right side of a line L, as shown in Fig.2) 10c on the front end side of the hub beyond a position where the axial inner ring raceway surface 10a is formed. The hardness of a surface layer A of the inner ring raceway surface 10a and the hardness of a surface layer B in a range excluding the front end 10c of the inner peripheral face 10b are each HRC 54-65, and the hardness of the front end 10c is HRC 40 or lower. COPYRIGHT: (C)2008,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AXLES FOR WHEELS OR CASTORS BEARINGS BLASTING CASTORS ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INCREASING WHEEL ADHESION LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLE WHEELS VEHICLES IN GENERAL WEAPONS |
| title | HUB UNIT BEARING INNER RING AND ITS MANUFACTURING METHOD |
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