As servo technology has evolved-with manufacturers creating smaller, yet more powerful motors -gearheads are becoming increasingly essential partners in motion control. Finding the ideal pairing must consider many engineering considerations.
• A servo motor running at low rpm operates inefficiently. Eddy currents are loops of electric current that are induced within the electric motor during procedure. The eddy currents actually produce a drag pressure within the engine and will have a greater negative effect on motor performance at lower rpms.
• An off-the-shelf motor’s parameters might not be ideally suitable for run at a low rpm. When an application runs the aforementioned engine at 50 rpm, essentially it is not using all of its obtainable rpm. Because the voltage constant (V/Krpm) of the engine is set for an increased rpm, the torque continuous (Nm/amp)-which is definitely directly linked to it-is certainly lower than it needs to be. Because of this, the application needs more current to operate a vehicle it than if the application had a motor particularly designed for 50 rpm. A gearhead’s ratio reduces the engine rpm, which is why gearheads are occasionally called gear reducers. Using a gearhead with a 40:1 ratio,
the electric 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 engine at the bigger rpm will permit you to avoid the concerns
Servo Gearboxes provide freedom for how much rotation is achieved from a servo. Many hobby servos are limited by just beyond 180 examples 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 installed on the Servo Gearbox. In such case, the small gear on the servo will rotate as many times as necessary to drive the potentiometer (and therefore the gearbox output shaft) into the position 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 motor technology. Essentially, a gearhead converts high-quickness, low-torque energy into low-speed, high-torque result. A servo engine provides highly accurate positioning of its result shaft. When these two devices are paired with each other, they promote each other’s strengths, providing controlled motion that is precise, robust, and reliable.
Servo Gearboxes are robust! While there are high torque servos in the marketplace that doesn’t suggest they are able to compare to the load capability of a Servo Gearbox. The tiny splined output shaft of 
a regular servo isn’t long enough, huge enough or supported well enough to handle some loads even though the torque numbers seem to be appropriate for the application. A servo gearbox isolates the load to the gearbox output shaft which is supported by a pair of ABEC-5 precision ball bearings. The exterior shaft can withstand intense loads in the axial and radial directions without transferring those forces to the servo. Subsequently, the servo operates more freely and is able to transfer more torque to the result shaft of the gearbox.