An object of the present invention is to reduce deformation in the rolling bearing outer ring, thereby providing an automobile-motor driving device equipped with speed reducer which has improved supply of lubrication oil to inside of the rolling bearings without sacrificing the function of the bearings. A parallel shaft gear speed reducer provides an automobile-motor driving device equipped with speed reducer. The parallel shaft gear speed reducer includes a plurality of gear shafts having their two ends supported via rolling bearings (34b) fitted into bearing fitting holes (32b) formed in a speed reducer casing (20bL) which houses the parallel shaft gear speed reducer. A groove (45) is provided in an inner circumferential surface of the bearing fitting hole (32b) into which the rolling bearing (34b) is fitted, for communication between a space (G1) that houses the speed reducer and an inside space (G2) of the bearing fitting hole, at a location not crossed by the line of action of a load acting upon the rolling bearing 34b due to the meshing of the gears.
MOTOR DRIVE DEVICE FOR AUTOMOBILE AND EQUIPPED WITH SPEED REDUCER
MOTORANTRIEBSVORRICHTUNG FÜR AUTOMOBIL UND AUSGESTATTET MIT EINEM DREHZAHLMINDERER
DISPOSITIF D'ENTRAÎNEMENT DE MOTEUR POUR VOITURE PARTICULIÈRE, ÉQUIPÉ D'UN RÉDUCTEUR DE VITESSE
2022-05-04
Patent
Electronic Resource
English
MOTOR DRIVE DEVICE FOR AUTOMOBILE AND EQUIPPED WITH SPEED REDUCER
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