As servo technology has evolved-with manufacturers producing smaller, yet more powerful motors -gearheads are becoming increasingly essential partners in motion control. Locating the optimum pairing must take into account many engineering considerations.
• A servo engine working at low rpm operates inefficiently. Eddy currents are loops of electric current that are induced within the motor during operation. The eddy currents actually produce a drag force within the engine and will have a larger 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 motor at 50 rpm, essentially it is not using all of its available rpm. Because the voltage continuous (V/Krpm) of the electric motor is set for a higher rpm, the torque constant (Nm/amp)-which can be directly related to it-can be lower than it needs to be. Because of this, the application needs more current to operate a vehicle it than if the application had a motor specifically designed for 50 rpm. A gearhead’s ratio reduces the engine 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. Most hobby servos are limited to just beyond 180 examples of rotation. Most of the Servo Gearboxes use a patented external potentiometer so that the rotation amount is independent of the gear ratio set up on the Servo Gearbox. In this kind of case, the small gear on the servo will rotate as many times as essential to drive the potentiometer (and therefore the gearbox output shaft) into the position that the signal from the servo controller demands.
Machine designers are increasingly turning to gearheads to take benefit of the most recent advances in servo engine technology. Essentially, a gearhead converts high-velocity, low-torque energy into low-speed, high-torque result. A servo engine provides highly accurate positioning of its result shaft. When these two products are paired with one another, they enhance 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 are able to compare to the load capacity of a Servo Gearbox. The small splined output shaft of a regular servo isn’t lengthy enough, huge enough or supported sufficiently to handle some loads despite the fact that the torque numbers seem to be appropriate for the application. A servo gearbox isolates the load to the gearbox result shaft which is supported by a pair of ABEC-5 precision ball bearings. The exterior shaft can withstand extreme 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.