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Like all gear units, servo gear units serve as converters of torque and speed and are therefore the central component of every servo gearmotor. The special feature of a servo gear unit: Thanks to its high torsional stiffness while maintaining a very low to constant rotational clearance, it enables extremely high acceleration and high torques. Servo gear units are therefore indispensable for plant operators whose applications require high positioning accuracy, short cycle times, exact speeds, high processing speeds, and maximum dynamics.
A servo gear unit reduces the speed of a motor. It transmits the flow of force in different ways depending on how its gearing and gear unit stages are arranged and operate. The gear ratio i is therefore one of the most important characteristic values of a servo gear unit: It specifies the ratio of the input speed (on the motor side) to the output speed (on the machine side). Low-backlash processing and optimized gearing ensure that the servo gear unit is capable of receiving higher overhung loads than standard gear units and transmitting high acceleration torques at high speeds.
The primary servo gear units used in industrial drive technology are coaxial gear units/planetary gear units and right-angle gear units/helical-bevel gear units.
The outstanding features of servo gearmotors are definitely power, dynamics, and precision. Use our modular system and see the multitude of gear unit and motor constellations in our servo gear unit section for yourself: For example, you can combine our PS.F.. or PS.C.. planetary servo gear units with CMP.. synchronous servomotors, a DRL..-type synchronous servomotors or with DR.. AC motors. Or instead choose a design with our BS.F helical-bevel servo gear units.
With SEW‑EURODRIVE, you can create the ideal gearmotor that provides the exact drive behavior that you need for your application and requirements.