As servo technology has evolved-with manufacturers generating smaller, yet more powerful motors -gearheads have become increasingly essential partners in motion control. Locating the optimal pairing must take into account many engineering considerations.
• A servo electric motor operating 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 power within the electric 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 suitable for run at a low rpm. When a credit card applicatoin runs the aforementioned engine at 50 rpm, essentially it is not using most of its available rpm. Because the voltage continuous (V/Krpm) of the motor is set for an increased rpm, the torque constant (Nm/amp)-which can be directly linked to it-is lower than it requires to be. As a result, the application requirements 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 motor rpm, which explains why gearheads are sometimes 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 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. Most hobby servos are limited to just beyond 180 examples of rotation. Most of the Servo Gearboxes utilize a patented external potentiometer so that the rotation quantity is in addition to the gear ratio set up on the Servo Gearbox. In such 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 position that the transmission from the servo controller demands.
Machine designers are increasingly embracing gearheads to take advantage of the most recent advances in servo motor technology. Essentially, a gearhead converts high-speed, low-torque energy into low-speed, high-torque result. A servo electric motor provides highly accurate positioning of its result shaft. When both of these products are paired with one another, they enhance each other’s strengths, offering controlled motion that is precise, robust, and dependable.

Servo Gearboxes are robust! While there are high torque servos on the market that doesn’t imply they are able to compare to the strain capacity of a Servo Gearbox. The small splined output shaft of a normal servo isn’t long enough, large enough or supported sufficiently to take care of some loads even though the torque numbers appear to be appropriate for the application. A servo gearbox isolates the load to the gearbox output shaft which is backed by a pair of ABEC-5 precision ball bearings. The external shaft can withstand severe loads in the axial and radial directions without transferring those forces to the servo. In turn, the servo operates more freely and can transfer more torque to the output shaft of the gearbox.