As servo technology has evolved-with manufacturers making smaller, yet better motors -gearheads are becoming increasingly essential companions in motion control. Finding the optimal pairing must consider many engineering considerations.
• A servo electric motor running at low rpm operates inefficiently. Eddy currents are loops of electric 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 impact on motor functionality 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 is not using most of its available rpm. As the voltage continuous (V/Krpm) of the electric motor is set for a higher rpm, the torque continuous (Nm/amp)-which is usually directly linked to it-is lower than it needs to be. As a result, 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 explains 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 electric motor at the higher rpm will enable 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. Many of the Servo Gearboxes use a patented external potentiometer so that the rotation amount is in addition to 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 hence the gearbox output shaft) into the placement 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-quickness, low-torque energy into low-speed, high-torque output. A servo engine provides highly accurate positioning of its result shaft. When these two products are paired with each other, they enhance each other’s strengths, providing controlled motion that is precise, robust, and dependable.
Servo Gearboxes are robust! While there are high torque servos on the market that doesn’t suggest they can compare to the load capacity of a Servo Gearbox. The small splined result shaft of a regular servo isn’t lengthy enough, large enough or supported well enough 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 output 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 runs more freely and can transfer more torque to the output shaft of the gearbox.