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When a conventional planetary gearhead is mounted to a electric motor, the sun gear should be aligned to compensate for runout error of the servomotor shaft. Without proper alignment, load can be unevenly distributed over the planetary gears and the drive train operates less efficiently. Also, gear life can be shortened. These alignment modifications require skills that aren’t normally available 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 equipment is usually integral using its shaft, which must be smaller aswell, thereby reducing its strength and its own torque or load capability.

Various kinds gear trains, including people that have planetary gears, are generally used to obtain this optimum reduction ratio. Planetary gear trains offer high stiffness and low backlash (needed for accurate operation), plus also load distribution (to acquire maximum torque). Some planetary versions combine external-tooth pinion-and-gear units with planetary equipment sections to simplify set up and boost speed. These hybrid gearheads are explained later.
A basic planetary gearhead has some limitations regarding simple installation, load capacity, and speed, which are related to the sun gear.

As a rule, the designer usually obtains the maximum speed reduction ratio by matching the inertia of the electric motor 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 require a servo drive – this uses the opinions data to exactly control the positioning of the motors path and rotation distance.
Cone Drive’s stainless steel precision motion gearboxes are designed for sterile manufacturing conditions. The product’s smooth surface and curved contour permits easy cleaning and servo motor and gearbox bacteria-free surfaces, ideal for food digesting and pharmaceutical applications. The merchandise is designed and ranked to IP69k providing maximum security against contaminant ingress as well as leak free operation.
Servomotor selection usually begins with the designer wanting to reduce the electric motor size by using a gearbox to lessen speed and increase torque. Speed decrease allows rapid acceleration and deceleration of large loads utilizing a small, less costly motor.