BEARING DEVICE

PROBLEM TO BE SOLVED: To control deformation of an inner ring raceway during a caulking operation of a bearing device. SOLUTION: This bearing device has an angular ball bearing 12 mounted on an outer periphery of a hollow shaft 14 of a hub wheel 11 and has a shaft end 14a of the hollow shaft 14 bent...

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Bibliographic Details
Main Authors TOMITA DAISAKU, MITARAI TADASHI, ISHII TOMOHIRO, TODA KAZUHISA
Format Patent
LanguageEnglish
Published 23.01.2002
Edition7
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
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Summary:PROBLEM TO BE SOLVED: To control deformation of an inner ring raceway during a caulking operation of a bearing device. SOLUTION: This bearing device has an angular ball bearing 12 mounted on an outer periphery of a hollow shaft 14 of a hub wheel 11 and has a shaft end 14a of the hollow shaft 14 bent to a radially outer direction to caulk an end surface of an inner ring 15 of the bearing for a bearing pull off prevention. The inner ring 15 is wholly hardened by heat treatment to improve wear resistance and strength of a raceway surface 15b and an inner periphery edge part circumference area 30 of the inner ring is softened by local tempering after heat treatment. Deformation of the inner ring by a caulking load, thereby, is limited in the inner periphery edge part circumference area 30 to control deformation of the raceway for improvement of a bearing rolling characteristics.
Bibliography:Application Number: JP20000207931