Electric drive with brakes, in particular for hoists, lifting devices or positioning transporting systems

An electric drive with brakes, comprising:

• a motor shaft having a toothing thereon;
• a brake disk having a brake face on each side and being mounted on the shaft toothing so as to be axially movable on the motor shaft and so as to rotate therewith;
• stationary counter-brake disks, one of the counter-brake disks being arranged on each side of the brake disk;
• spring means for pressing the brake disk into engagement with the counter-brake disks;
• and electromagnetic means responsive to current for releasing the disks against spring force of the spring means, the electromagnetic means including at least two a.c. magnets, two separate E-shaped magnet coil yokes having end faces, and two E-shaped magnet yokes having counter-pole faces arranged opposite the end faces of the magnet coil yokes, the magnet yokes being arranged and adapted to be angularly movable when current is applied to the a.c. magnets so that the counter-pole faces of the magnet yokes are alignable with the end faces of the E-shaped magnet coil yokes without application of moment.