Whenever a conventional planetary gearhead is mounted to a motor, the sun gear should be aligned to compensate 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 efficiently. Also, gear life can be shortened. These alignment changes 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 exceptionally large ring gear). This smaller sun equipment is usually integral using its shaft, which should be smaller as well, thereby reducing its strength and its own torque or load capability.
Various kinds gear trains, including those with planetary gears, are generally used to acquire this maximum reduction ratio. Planetary equipment trains offer high stiffness and low backlash (necessary for accurate operation), plus also load distribution (to obtain optimum torque). Some planetary variations combine external-tooth pinion-and-gear sets with planetary gear sections to simplify installation and boost swiftness. These hybrid gearheads are referred to later.
A simple planetary gearhead has several limitations regarding simple installation, load capacity, and speed, 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, making 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 opinions data to precisely control the servo motor and gearbox position of the motors path and rotation distance.
Cone Drive’s stainless steel precision motion gearboxes are created for sterile manufacturing environments. The product’s smooth surface and curved contour allows for easy cleaning and bacteria-free surfaces, ideal for meals processing and pharmaceutical applications. The merchandise is designed and ranked to IP69k providing maximum security against contaminant ingress and also leak free operation.
Servomotor selection usually starts with the designer seeking to reduce the engine size by using a gearbox to reduce speed and increase torque. Speed decrease allows quick acceleration and deceleration of huge loads using a small, less expensive motor.