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When a conventional planetary gearhead is mounted to a motor, the sun gear must be aligned to pay for runout error of the servomotor shaft. Without proper alignment, load can be unevenly distributed over the planetary gears and the drive teach operates less smoothly. Also, gear life can be shortened. These alignment adjustments 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 equipment is usually integral with its shaft, which must 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 optimum reduction ratio. Planetary equipment trains offer high stiffness and low backlash (needed for accurate operation), plus actually load distribution (to obtain maximum torque). Some planetary versions combine external-tooth pinion-and-gear units with planetary equipment sections to simplify installation and boost velocity. These hybrid gearheads are referred to later.
A basic planetary gearhead has a few limitations regarding ease of installation, load capacity, and speed, which are related to the sun gear.

As a rule, the designer usually obtains the the best possible speed decrease ratio by matching the inertia of the electric motor and gearbox with the inertia of the driven load. This inertia coordinating minimizes power loss 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 specifically control the positioning of the motors path and rotation distance.
Cone Drive’s stainless steel precision movement gearboxes are created for sterile manufacturing conditions. The product’s smooth surface area and curved contour allows for easy cleaning and bacteria-free surfaces, ideal for food digesting and pharmaceutical applications. The merchandise is designed and rated to IP69k offering maximum security against contaminant ingress and also leak free operation.
Servomotor selection usually starts with the designer wanting to reduce the motor size by using a gearbox to lessen speed and increase torque. Speed decrease allows fast acceleration and deceleration of large loads utilizing a small, less costly motor.

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