As servo technology has evolved-with manufacturers making smaller, yet better motors -gearheads are becoming increasingly essential partners in motion control. Finding the ideal pairing must consider many engineering considerations.
• A servo electric motor running at low rpm operates inefficiently. Eddy currents are loops of electrical current that are induced within the electric motor during operation. The eddy currents actually produce a drag pressure within the engine and will have a larger negative impact on motor functionality at lower rpms.
• An off-the-shelf motor’s parameters may not be ideally suitable for run at a minimal rpm. When an application runs the aforementioned engine at 50 rpm, essentially it isn’t using all of its obtainable rpm. As the voltage continuous (V/Krpm) of the motor is set for an increased rpm, the torque constant (Nm/amp)-which is directly linked to it-can be lower than it requires to be. Consequently, the application requirements more current to drive it than if the application form had a motor specifically made for 50 rpm. A gearhead’s ratio reduces the motor rpm, which is why gearheads are sometimes called gear reducers. Utilizing 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 electric motor at the bigger rpm will permit 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 external potentiometer to ensure that the rotation amount is in addition to the gear ratio set up on the Servo Gearbox. In this kind of case, the small equipment on the servo will rotate as much times as essential to drive the potentiometer (and therefore the gearbox result 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 latest advances in servo electric motor technology. Essentially, a gearhead converts high-swiftness, low-torque energy into servo motor gearbox low-speed, high-torque output. A servo motor provides highly accurate positioning of its result shaft. When both of these devices are paired with one another, they promote each other’s strengths, providing controlled motion that is precise, robust, and dependable.
Servo Gearboxes are robust! While there are high torque servos available that doesn’t mean they can compare to the load capacity of a Servo Gearbox. The tiny splined result shaft of a normal servo isn’t lengthy enough, huge enough or supported sufficiently to handle some loads even though the torque numbers appear to be appropriate for the application. A servo gearbox isolates the strain to the gearbox result shaft which is supported 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. In turn, the servo runs more freely and can transfer more torque to the result shaft of the gearbox.