When a conventional planetary gearhead is mounted to a engine, the sun gear must be aligned to pay for runout error of the servomotor shaft. Without proper alignment, load is certainly unevenly distributed over the planetary gears and the drive teach operates less easily. Also, gear life can be shortened. These alignment adjustments require skills that are not normally obtainable in the field.
Achieving a more substantial speed reduction ratio takes a smaller sun equipment diameter (or an exceedingly large ring gear). This smaller sun gear is usually integral with its shaft, which should be smaller as well, thereby reducing its strength and its torque or load capability.
Several types of gear trains, including people that have planetary gears, are commonly used to obtain this ideal reduction ratio. Planetary equipment trains offer high stiffness and low backlash (needed for accurate operation), plus even load distribution (to acquire optimum torque). Some planetary variations combine external-tooth pinion-and-gear pieces with planetary equipment sections to simplify set up and boost acceleration. These hybrid gearheads are referred to later.
A basic planetary gearhead has a few limitations regarding simple installation, load capacity, and speed, which are related to sunlight gear.
Generally, the designer usually obtains the optimum speed decrease ratio by matching the inertia of the electric motor and gearbox with the inertia of the driven load. This inertia complementing minimizes power loss in the motor, making 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 feedback data to precisely control the position of the motors direction and rotation distance.
Cone Drive’s stainless steel precision motion gearboxes are designed for sterile manufacturing environments. The product’s smooth surface area and curved servo reducer contour allows for easy cleaning and bacteria-free surfaces, perfect for 
food processing and pharmaceutical applications. The product is designed and rated to IP69k offering maximum protection against contaminant ingress in addition to leak free operation.
Servomotor selection usually starts with the designer seeking to reduce the motor size by utilizing a gearbox to reduce speed and increase torque. Speed reduction allows fast acceleration and deceleration of large loads using a small, less costly motor.