As servo technology has evolved-with manufacturers generating smaller, yet better motors -gearheads are becoming increasingly essential companions in motion control. Finding the ideal 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 power within the electric motor and will have a greater negative impact on motor efficiency 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 electric motor at 50 rpm, essentially it isn’t using all of its obtainable rpm. As the voltage constant (V/Krpm) of the electric motor is set for a higher rpm, the torque constant (Nm/amp)-which is usually directly related to it-is definitely lower than it needs to be. As a result, the application needs 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 electric motor at the bigger rpm will enable you to avoid the concerns
Servo Gearboxes provide freedom for just how much rotation is achieved from a servo. Many hobby servos are limited to just beyond 180 examples of rotation. Most of the Servo Gearboxes utilize a patented exterior potentiometer so that the rotation quantity is independent 
of the gear ratio installed on the Servo Gearbox. In this kind of case, the small equipment 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 demands.
Machine designers are increasingly embracing gearheads to take advantage of the latest advances in servo engine technology. Essentially, a gearhead converts high-acceleration, low-torque energy into low-speed, high-torque result. A servo motor provides extremely accurate positioning of its output shaft. When both of these devices are paired with one another, they promote each other’s strengths, offering controlled motion that’s precise, robust, and reliable.
Servo Gearboxes are robust! While there are high torque servos out there that doesn’t indicate they can compare to the strain capacity of a Servo Gearbox. The tiny splined result shaft of a regular servo isn’t long enough, large enough or supported sufficiently to handle some loads even though the torque numbers look like appropriate for the application form. A servo gearbox isolates the strain to the gearbox result shaft which is backed by a set of ABEC-5 precision ball bearings. The external 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 can transfer more torque to the output shaft of the gearbox.