Brushless motor

A rotary shaft (4) of a rotor (2) including a magnet (20) with a plurality of magnetic poles arranged at equal intervals on an outer circumference is supported at both ends by bearings (5, 6). By externally fitting the inner ring of one bearing (5) to the rotary shaft (4) and holding it to be immova...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI, TOMOFUMI, HORIE, TETSUO, MATSUBARA, KEN, KITABAYASHI, MINORU
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BEARINGS BLASTING CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATION HEATING LIGHTING MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A rotary shaft (4) of a rotor (2) including a magnet (20) with a plurality of magnetic poles arranged at equal intervals on an outer circumference is supported at both ends by bearings (5, 6). By externally fitting the inner ring of one bearing (5) to the rotary shaft (4) and holding it to be immovable in an axial direction and loosely fitting the outer ring of the bearing (5) into the support hole (13) and positioning it with belleville springs (16, 16) which are in contact resiliently with both sides, the rotary shaft (4) and the rotor (2) are supported so that they are movable in an axial direction within a movement amount of not greater than 2 mm according to a movement of the bearing (5) caused against spring forces of the belleville springs (16, 16).