Servo gearheads provide mechanical advantage by multiplying engine torque while reducing the driven load’s reflected inertia back to the motor.
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Are you aware why we still make use of today gearboxes while servo motors becoming stronger and more complex? The gearboxes are used in many instances in mixture with a servo electric motor, for example because they have low backlash and so are able to deal with high torque. But nonetheless we did not give a remedy to the previous issue: why! In this article we discuss the operation of a servo drive and translate this through to the gearboxes.
Technically translated tis methods to follow or execute a command. A servo electric motor servo motor and gearbox follows the (complex) job given to him.
For industrial applications, servo motors are used in which a drive-system has to be accurate or highly powerful. The feedback to the motor is performed through a resolver (analogue sensor of rotation) or encoder (digital sensor of rotation). A servo motor is managed by a servo amplifier, probably with a shaft controller.
The rotation frequency of the actuator is returned by the resolver or encoder. This is capable as well as the rotational acceleration, also to 
determine the placement of the rotor and the path of rotation. The servo amplifier compares the arranged rotational frequency with the measured rotational frequency. Right now the servo amplifier can drive the actuator to the desired values.
Interesting, AC Servo Motors have no significant disadvantages more! Therefore, why would you utilize a gearbox?
This has the following reasons:
If you want a suprisingly low swiftness, possibly in mixture with a higher torque.
If you want high torque. (Actuators with high torque can be found, however they are exponentially more expensive compared to the smaller servomotors)
Inertia matching, to be able to prevent that the load determines the behaviour of the electric motor.
To be able to absorb the high radial or axial forces of the application.
If you would like to go “nearby” otherwise the servomotor sticks out the application. Gearboxes can be found in right-angled versions.
Baldor’s GBSM-series of low backlash, servo electric motor rated gearheads, mount easily and directly onto AC brushless servo motors to provide industrial motion control apparatus with torque multiplication and proper inertial matching. These gearheads are designed for servo applications needing precision, durability, and lengthy trouble-free operation.