ROLLER BEARING AND MACHINE TOOL

PROBLEM TO BE SOLVED: To provide a roller bearing suppressing dimension change of a retainer under high speed operation, and a machine tool equipped with the roller bearing. SOLUTION: The roller bearing 3 includes an outer ring 31, an inner ring 32, and a retainer 24. The retainer 24 includes a reta...

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Bibliographic Details
Main Authors FUJIWARA HIROKI, ISHII TETSUTO, MORI MASATSUGU, FURUBAYASHI TAKATSUGU, SHIMAZU EIICHIRO
Format Patent
LanguageEnglish
Published 14.04.2011
Subjects
ALLOYS
BEARINGS
BLASTING
BORING
CHEMISTRY
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FERROUS OR NON-FERROUS ALLOYS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MACHINE TOOLS
MECHANICAL ENGINEERING
METAL-WORKING NOT OTHERWISE PROVIDED FOR
METALLURGY
PERFORMING OPERATIONS
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
TURNING
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a roller bearing suppressing dimension change of a retainer under high speed operation, and a machine tool equipped with the roller bearing. SOLUTION: The roller bearing 3 includes an outer ring 31, an inner ring 32, and a retainer 24. The retainer 24 includes a retainer base body 24K comprising magnesium alloy and formed by injection molding, and fiber 4 restraining an outer diameter part 24B of the retainer base body 24K. A penetrating groove 6 for guiding lubricating oil to parts between the outer ring 31, the inner ring 32 and the retainer 24 is provided on at least one of the outer ring 31, the inner ring 32, and the retainer base body 24K. COPYRIGHT: (C)2011,JPO&INPIT
Bibliography:Application Number: JP20090224878