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Servo Motor Selection Guide: Load, Speed and Positioning Accuracy

Understand the key parameters for servo motor selection and build a precise motion solution for automation equipment.

Servo Motor Selection Guide: Load, Speed and Positioning Accuracy
2026-09-16 · Technical guide

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Key Parameters in Servo Motor Selection

Servo motor selection should consider load torque, inertia, operating speed, positioning accuracy and duty cycle together. Accurate inputs help prevent overload, insufficient response and unnecessary oversizing.

Load and Inertia Matching

Calculate required torque from mechanism weight, friction and acceleration time, then check the inertia ratio between motor and load. Repetitive equipment needs sufficient peak torque and dynamic response.

Speed and Accuracy

Rated speed defines continuous capability, while encoder resolution and tuning affect positioning. Also confirm mounting dimensions, brake options, shaft configuration and communication protocol.

LIKR Engineering Support

LIKR Industries provides matching recommendations for servo motors, servo drives and transmission systems according to the actual machine duty.

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