{"id":7592,"date":"2024-06-14T09:30:08","date_gmt":"2024-06-14T09:30:08","guid":{"rendered":"https:\/\/faradyi.com\/?p=7592"},"modified":"2026-05-27T06:13:33","modified_gmt":"2026-05-27T06:13:33","slug":"how-to-master-stepper-motor-selection-3-key-factors-explained","status":"publish","type":"post","link":"https:\/\/faradyi.com\/fr\/how-to-master-stepper-motor-selection-3-key-factors-explained\/","title":{"rendered":"How to Master Stepper Motor Selection? 3 Key Factors Explained"},"content":{"rendered":"
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How to Master Stepper Motor Selection? 3 Key Factors Explained<\/h3>

The Bottom Line (Key Takeaway):<\/b> As a fundamental execution component in mechatronics and automated motion control systems, selecting the right\u00a0moteur pas \u00e0 pas<\/b><\/a>\u00a0comes down to defining three primary parameters: Step Angle (Phase), Static Torque, and Current<\/b>. Once these three major factors are determined, the exact motor model and geometric dimensions are locked in.<\/p>

1. Selection of Step Angle (Accuracy Requirements)<\/span><\/strong><\/h3>

The step angle of the motor depends entirely on your load accuracy requirements. To find the right angle, calculate the minimum resolution (equivalent) required by the load and convert it to the motor shaft. The step angle of your selected motor must be equal to or less than<\/b> this calculated angle (factoring in any deceleration mechanisms).<\/p>

Different motor phases offer different standard step angles. Here is a quick reference:<\/p>
Type de moteur<\/strong><\/td>Common Step Angles (Degrees)<\/strong><\/td><\/tr><\/thead>
2-Phase & 4-Phase Motors<\/b><\/span><\/td>0.9\u00b0 \/ 1.8\u00b0<\/span><\/td><\/tr>
3-Phase Motors<\/b><\/span><\/td>1.5\u00b0 \/ 3.0\u00b0<\/span><\/td><\/tr>
5-Phase Motors<\/b><\/span><\/td>0.36\u00b0 \/ 0.72\u00b0<\/span><\/td><\/tr><\/tbody><\/table>

2. Selection of Static Torque (Load Capacity & Size)<\/span><\/strong><\/h3>

It is often difficult to pinpoint the exact dynamic torque required right away. Therefore, engineers typically determine the static torque<\/b> first. This selection is based on the motor’s total load, which is divided into two types: Inertia Load<\/b> et Friction Load<\/b>. Single inertia or single friction loads do not exist in reality; they must be evaluated based on the operating phase:<\/p>