As servo technology has evolved-with manufacturers producing smaller, yet better motors -gearheads are becoming increasingly essential partners in motion control. Finding the optimum pairing must take into account many engineering considerations.
• A servo engine running at low rpm operates inefficiently. Eddy currents are loops of electric current that are induced within the engine during procedure. The eddy currents in fact produce a drag pressure within the electric motor and will have a greater negative impact on motor performance 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 
engine at 50 rpm, essentially it is not using most of its obtainable rpm. As the voltage continuous (V/Krpm) of the engine is set for an increased rpm, the torque constant (Nm/amp)-which is definitely directly servo motor gearbox linked to it-can be lower than it requires to be. As a result, the application needs more current to operate a vehicle it than if the application form had a motor specifically made for 50 rpm. A gearhead’s ratio reduces the electric motor rpm, which is why gearheads are occasionally called gear reducers. Using a gearhead with a 40:1 ratio,
the engine 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. The majority of hobby servos are limited by just beyond 180 degrees of rotation. Many of the Servo Gearboxes use a patented exterior potentiometer so that the rotation quantity is in addition to the equipment ratio installed on the Servo Gearbox. In such case, the small equipment on the servo will rotate as much times as essential to drive the potentiometer (and hence the gearbox output shaft) into the position that the signal from the servo controller calls for.
Machine designers are increasingly embracing gearheads to take advantage of the latest advances in servo engine technology. Essentially, a gearhead converts high-speed, low-torque energy into low-speed, high-torque output. A servo motor provides highly accurate positioning of its output shaft. When these two products are paired with one another, they promote each other’s strengths, offering controlled motion that is 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 strain capability of a Servo Gearbox. The tiny splined output shaft of a regular servo isn’t lengthy enough, large enough or supported well enough to take care of some loads even though the torque numbers look like appropriate for the application. A servo gearbox isolates the strain to the gearbox result shaft which is backed by a pair of ABEC-5 precision ball bearings. The exterior shaft can withstand severe loads in the axial and radial directions without transferring those forces on to the servo. Subsequently, the servo runs more freely and is able to transfer more torque to the output shaft of the gearbox.