When a conventional planetary gearhead is mounted to a motor, the sun gear must be aligned to compensate for runout error of the servomotor shaft. Without proper alignment, load is unevenly distributed over the planetary gears and the drive teach operates less smoothly. Also, gear life could be shortened. These alignment changes require skills that aren’t normally available in the field.
Achieving a larger speed reduction ratio requires a smaller sun gear diameter (or an exceedingly large ring equipment). This smaller sun equipment is usually integral with its shaft, which must be smaller as well, thereby reducing its power and its torque or load capacity.

Various kinds gear trains, including people that have planetary gears, are generally used to acquire this optimum reduction ratio. Planetary gear trains offer high stiffness and low backlash (necessary for accurate operation), plus even load distribution (to obtain optimum torque). Some planetary variations combine external-tooth pinion-and-gear units with planetary equipment sections to servo reducer simplify installation and boost speed. These hybrid gearheads are referred to later.
A basic planetary gearhead has a few limitations regarding simple installation, load capacity, and speed, all of which are related to the sun gear.

As a rule, the designer usually obtains the optimum speed decrease ratio by matching the inertia of the engine and gearbox with the inertia of the driven load. This inertia complementing minimizes power reduction in the motor, which makes it run more efficiently.

Servo motors deliver precise control of placement, velocity, and acceleration in the closed-loop systems of servomechanisms. Servo motors need a servo drive – this uses the opinions data to specifically control the positioning of the motors path and rotation distance.
Cone Drive’s stainless steel precision movement gearboxes are created for sterile manufacturing environments. The product’s smooth surface and curved contour permits easy cleaning and bacteria-free surfaces, perfect for food digesting and pharmaceutical applications. The product is designed and rated to IP69k offering maximum security against contaminant ingress along with leak free operation.
Servomotor selection usually begins with the designer wanting to reduce the engine size by utilizing a gearbox to lessen speed and boost torque. Speed decrease allows fast acceleration and deceleration of huge loads using a small, less expensive motor.