As servo technology has evolved-with manufacturers making smaller, yet better motors -gearheads are becoming increasingly essential companions in motion control. Locating the ideal pairing must consider many engineering considerations.
• A servo engine operating at low rpm operates inefficiently. Eddy currents are loops of electrical current that are induced within the motor during operation. The eddy currents actually produce a drag pressure within the electric motor and will have a larger negative effect 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 motor at 50 rpm, essentially it is not using most of its offered rpm. As the voltage constant (V/Krpm) of the motor is set for a higher rpm, the torque constant (Nm/amp)-which is directly related to it-is definitely lower than it requires to be. As a result, the application needs more current to drive it than if the application form had a motor specifically made for 50 rpm. A gearhead’s ratio reduces the electric motor rpm, which is why gearheads are occasionally called gear reducers. Using a gearhead with a 40:1 ratio,
the electric 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 bigger rpm will allow you to avoid the concerns

Servo Gearboxes provide freedom for how much rotation is achieved from a servo. The majority of hobby servos are limited by just beyond 180 degrees of rotation. Most of the Servo Gearboxes utilize a patented external potentiometer to ensure that the rotation quantity is independent of the gear ratio installed on the Servo Gearbox. In such case, the small equipment on the servo will rotate as much times as necessary to drive the potentiometer (and hence the gearbox output shaft) into the position that the signal from the servo controller calls for.
Machine designers are increasingly embracing gearheads to take benefit of the latest advances in servo engine technology. Essentially, a gearhead converts high-quickness, low-torque energy into low-speed, high-torque result. A servo motor provides highly accurate positioning of its output shaft. When these two products are paired with each other, they promote each other’s strengths, providing controlled motion that is precise, robust, and reliable.

Servo Gearboxes are robust! While there are high torque servos available that doesn’t indicate they are able to compare to the load capability of a Servo Gearbox. The tiny splined output shaft of a regular servo isn’t lengthy enough, huge enough or supported well enough to handle some loads even though the torque numbers seem to be suitable for the application form. A servo gearbox isolates the strain to the gearbox result shaft which is supported by a set of ABEC-5 precision ball bearings. The exterior shaft can withstand extreme 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 result shaft of the gearbox.