Belt drive having a first drive pulley, which is designed to be fixedly connected to a drive unit, preferably to a shaft of a drive unit, having a first output pulley, which is designed to be fixedly connected to an output unit, preferably to a shaft of an output unit, and having a first belt, which connects the first drive pulley force-transmittingly to the first output pulley, having a second drive pulley, which is designed to be fixedly connected to the drive unit, preferably to the shaft of the drive unit, having a second output pulley, which is designed to be fixedly connected to the output unit, preferably to the shaft of the output unit, and having a second belt, which connects the second drive pulley force-transmittingly to the second output pulley, wherein the drive pulleys (30, 31) are designed as helically toothed drive gearwheels (30, 31), the output pulleys (32, 33) as helically toothed output gearwheels (32, 33) and the belts (34, 35) as helically toothed toothed belts (34, 35), and wherein the first drive gearwheel, the first output gearwheel and the first toothed belt have a first helical toothing, which is oriented in the opposite direction to a second helical toothing of the second drive gearwheel, the second output gearwheel and the second toothed belt, characterized in that the first helical toothing and the second helical toothing have different slopes, and in that the first belt and the second belt are each designed to transmit force by themselves between the respective drive pulley (30; 31) and the respective output pulley (32; 33), and in that the first helical toothing and the second helical toothing have different pitches. having a first drive pulley, which is designed to be fixedly connected to a drive unit, preferably to a shaft of a drive unit, having a first output pulley, which is designed to be fixedly connected to an output unit, preferably to a shaft of an output unit, and having a first belt, which connects the first drive pulley force-transmittingly to the first output pulley, having a second drive pulley, which is designed to be fixedly connected to the drive unit, preferably to the shaft of the drive unit, having a second output pulley, which is designed to be fixedly connected to the output unit, preferably to the shaft of the output unit, and having a second belt, which connects the second drive pulley force-transmittingly to the second output pulley, wherein the drive pulleys (30, 31) are designed as helically toothed drive gearwheels (30, 31), the output pulleys (32, 33) as helically toothed output gearwheels (32, 33) and the belts (34, 35) as helically toothed toothed belts (34, 35), and wherein the first drive gearwheel, the first output gearwheel and the first toothed belt have a first helical toothing, which is oriented in the opposite direction to a second helical toothing of the second drive gearwheel, the second output gearwheel and the second toothed belt, characterized in that the first helical toothing and the second helical toothing have different slopes, and in that the first belt and the second belt are each designed to transmit force by themselves between the respective drive pulley (30; 31) and the respective output pulley (32; 33), and in that the first helical toothing and the second helical toothing have different pitches.