Furthermore, support may not be available (or it may be woefully lacking) should you have Nevertheless the time taking configuring the gearbox could negate any savings made. The first is that unlike a custom system if - say - the gearbox goes wrong, but the DC Motor is fine, then you have to replace the whole system. Of course, there are disadvantages, as with any system.
Finally, whilst there is one or two designated systems for which it can be used it, they can be used elsewhere, as the drive shaft (the only customisable element of our system) can be designed to fit both the gear motor & to the appliance the gear motor will power. The reason for doing such a thing is simple, it will be cheaper to mass produce the combinational gear motor than the gearbox & dc electric motor seperately, furthermore it will also be tailored to specific purposes (say one or two, no more), and thus require less time to set up. A forward thinking company will then manufacture a gear motor, a static amalgamation of the desired gearbox & dc electric motor. The idea of making a gear motor is conceived whenever a gearbox & dc electric motor manufacturer decide that there is a need for them, due to repeat & similar orders from companies , all requesting the same thing.
Gear motors are simply a combination of a DC electric motor and a gearbox (hence the name gear motor). At the heart of most mass produced electric motor systems is a Gear motor.