DOUBLE ROW TAPERED ROLLER BEARING DEVICE

PROBLEM TO BE SOLVED: To miniaturize and lighten a double row tapered roller bearing device while securing performance of durability, transmission efficiency, etc. SOLUTION: A pinion shaft 2 on an end part of which a pinion gear 4 is fixed is supported by a pair of tapered roller bearings 3a, 3b. A...

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Bibliographic Details
Main Author ISHIMARU AKIRA
Format Patent
LanguageEnglish
Published 14.09.1999
Edition6
Subjects
BEARINGS
BLASTING
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To miniaturize and lighten a double row tapered roller bearing device while securing performance of durability, transmission efficiency, etc. SOLUTION: A pinion shaft 2 on an end part of which a pinion gear 4 is fixed is supported by a pair of tapered roller bearings 3a, 3b. A contact angle αof the tapered roller bearing 3b on the opposite side of the pinion gear 4 is made larger by more than five degrees than a contact angle β of the tapered roller bearing 3a to the pinion gear 4. Radial rigidity of the tapered roller bearing 3a receiving a large radial load applied from the pinion gear 4 to be engaged with a ring gear 5 improves. Additionally it is possible to restrain unbalance quantity of an axial load generated in both of the tapered roller bearings 3a, 3b small.
Bibliography:Application Number: JP19980046592