As servo technology has evolved-with manufacturers producing smaller, yet more powerful motors -gearheads have become increasingly essential partners in motion control. Locating the optimal pairing must take into account many engineering servo motor gearbox considerations.
• A servo engine operating at low rpm operates inefficiently. Eddy currents are loops of electric current that are induced within the motor during 
operation. The eddy currents in fact produce a drag power within the motor and will have a greater negative effect on motor functionality at lower rpms.
• An off-the-shelf motor’s parameters might not be ideally suited to run at a low rpm. When an application runs the aforementioned motor at 50 rpm, essentially it is not using all of its available rpm. Because the voltage continuous (V/Krpm) of the motor is set for a higher rpm, the torque constant (Nm/amp)-which is usually directly related to it-is lower than it requires to be. As a result, the application requirements more current to operate a vehicle it than if the application had a motor specifically created for 50 rpm. A gearhead’s ratio reduces the engine rpm, which is why gearheads are sometimes called gear reducers. Utilizing a gearhead with a 40:1 ratio,
the motor rpm at the input of the gearhead will be 2,000 rpm and the rpm at the output of the gearhead will be 50 rpm. Operating the motor at the higher rpm will allow you to avoid the concerns
Servo Gearboxes provide freedom for just how much rotation is achieved from a servo. The majority of hobby servos are limited by just beyond 180 levels of rotation. Most of the Servo Gearboxes make use of a patented external potentiometer to ensure that the rotation amount is independent of the gear ratio set up on the Servo Gearbox. In such case, the small gear on the servo will rotate as much times as necessary to drive the potentiometer (and hence the gearbox output shaft) into the placement that the transmission from the servo controller calls for.
Machine designers are increasingly turning to gearheads to take advantage of the most recent advances in servo electric motor technology. Essentially, a gearhead converts high-acceleration, low-torque energy into low-speed, high-torque result. A servo engine provides extremely accurate positioning of its output shaft. When these two gadgets are paired with each other, they enhance each other’s strengths, providing controlled motion that’s precise, robust, and reliable.
Servo Gearboxes are robust! While there are high torque servos out there that doesn’t suggest they are able to compare to the load capacity of a Servo Gearbox. The tiny splined result shaft of a normal servo isn’t long enough, large enough or supported sufficiently to take care of some loads even though the torque numbers seem to be suitable for the application form. A servo gearbox isolates the strain to the gearbox output shaft which is backed by a set of ABEC-5 precision ball bearings. The exterior shaft can withstand intense loads in the axial and radial directions without transferring those forces on to the servo. In turn, the servo runs more freely and can transfer more torque to the output shaft of the gearbox.