Servo gearheads provide mechanical benefit by multiplying motor torque while reducing the driven load’s reflected inertia back to the motor.
We offers the widest selection of gear technology providing optimal solutions far beyond the capabilities of various other gearhead suppliers.
Are you aware why we still use today gearboxes while servo motors becoming stronger and more advanced? The gearboxes are found in many instances in mixture with a servo engine, for instance because they have low backlash and so are able to cope with high torque. But still we did not give an answer to the previous query: why! In this article we discuss the operation of a servo drive and translate this to the gearboxes.
Technically translated tis methods to follow or execute a command. A servo engine follows the (complex) job given to him.
For commercial applications, servo motors are used in which a drive-system has to be accurate or highly dynamic. The feedback to the motor is done through a resolver (analogue sensor of 
rotation) or encoder (digital sensor of rotation). A servo motor is managed by a servo amplifier, servo motor and gearbox perhaps with a shaft controller.
The rotation frequency of the actuator is given back by the resolver or encoder. That is capable as well as the rotational velocity, also to determine the position of the rotor and the path of rotation. The servo amplifier compares the established rotational frequency with the measured rotational frequency. At this point the servo amplifier can drive the actuator to the desired values.
Interesting, AC Servo Motors have no significant disadvantages more! So, why would you use a gearbox?
This has the next reasons:
If you want a very low rate, possibly in combination with a higher torque.
If you want high torque. (Actuators with high torque are available, but they are exponentially more expensive when compared to smaller servomotors)
Inertia matching, to be able to prevent that the load determines the behaviour of the engine.
To be able to absorb the high radial or axial forces of the application.
If you would like to go “around the corner” 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, install easily and directly onto AC brushless servo motors to provide industrial motion control products with torque multiplication and proper inertial matching. These gearheads are designed for servo applications needing precision, durability, and long trouble-free operation.