As servo technology has evolved-with manufacturers producing smaller, yet better motors -gearheads are becoming increasingly essential partners in motion control. Finding the optimal pairing must consider many engineering considerations.
• A servo motor working at low rpm operates inefficiently. Eddy currents are loops of electrical current that are induced within the engine during operation. The eddy currents in fact produce a drag pressure within the motor and will have a greater negative effect on motor overall performance at lower rpms.
• An off-the-shelf motor’s parameters may not be ideally suited to run at a minimal rpm. When an application runs the aforementioned electric motor at 50 rpm, essentially it isn’t using all of its offered rpm. Because the voltage continuous (V/Krpm) of the motor is set for an increased rpm, the torque constant (Nm/amp)-which is usually directly related to it-is definitely lower than it needs to be. Because of this, the application needs more current to operate a vehicle it than if the application form had a motor particularly designed for 50 rpm. A gearhead’s ratio reduces the motor rpm, which is why gearheads are occasionally 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 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 levels of rotation. Most of the Servo Gearboxes make use of a patented external potentiometer to ensure that the rotation quantity is in addition to the equipment ratio set up on the Servo Gearbox. In this kind of case, the small gear on the servo will rotate as much times as necessary to drive the potentiometer (and hence the gearbox result shaft) into the placement that the signal from the servo controller demands.
Machine designers are increasingly embracing gearheads to take advantage of the latest advances in servo electric motor technology. Essentially, a gearhead converts high-speed, low-torque energy into low-speed, high-torque result. A servo engine provides highly accurate positioning of its output shaft. When these two gadgets are paired with each other, 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 available that doesn’t indicate they can compare to the strain capability of a Servo Gearbox. The tiny splined output shaft of a regular servo isn’t long enough, large enough or supported sufficiently to take care of some loads despite the fact that the torque numbers look like appropriate for the application. A servo gearbox isolates the strain to the gearbox output shaft which is supported by a pair of ABEC-5 precision ball bearings. The external shaft can withstand extreme loads in the axial and radial directions without transferring those forces on to the servo. Subsequently, the servo operates more freely and is able to transfer more torque to the result shaft of the gearbox.