Whenever 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 usually unevenly distributed over the planetary gears and the drive train operates less easily. Also, gear life can be shortened. These alignment modifications require skills that are not normally available in the field.
Achieving a more substantial speed reduction ratio takes a smaller sun gear diameter (or an exceedingly large ring equipment). This smaller sun gear is usually integral using its shaft, which must be smaller aswell, thereby reducing its strength and its servo reducer torque or load capacity.
Various kinds gear trains, including people that have planetary gears, are commonly used to obtain this the best possible reduction ratio. Planetary gear trains offer high stiffness and low backlash (necessary for accurate procedure), plus actually load distribution (to obtain maximum torque). Some planetary variations combine external-tooth pinion-and-gear units with planetary equipment sections to simplify installation and boost rate. These hybrid gearheads are described later.
A basic planetary gearhead has some limitations regarding ease of installation, load capacity, and speed, which are related to the sun gear.
Generally, the designer usually obtains the ideal speed decrease ratio by matching the inertia of the engine and gearbox with the inertia of the driven load. This inertia coordinating minimizes power reduction in the motor, which makes it run more efficiently.
Servo motors deliver precise control of position, velocity, and acceleration in the closed-loop systems of servomechanisms. Servo motors need a servo drive – this uses the feedback data to exactly control the positioning 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 and curved contour allows for easy cleaning and bacteria-free surfaces, ideal for food digesting and pharmaceutical applications. The product is designed and ranked to IP69k providing maximum security against contaminant ingress and also leak free operation.
Servomotor selection usually begins with the designer seeking to reduce the engine size by using a gearbox to 
lessen speed and enhance torque. Speed reduction allows quick acceleration and deceleration of large loads utilizing a small, less expensive motor.