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Home> Company News> What Affects the Selection of Precision Linear Modules?

What Affects the Selection of Precision Linear Modules?

2025,06,18
When selecting Linear Modules, several critical factors need to be considered to ensure optimal performance and reliability in various applications.?
1. Vibration Resistance and Stability?
Vibration resistance refers to the linear module's ability to withstand external vibrations and shocks, while stability pertains to its capacity to resist self-excited vibrations under specific operating conditions. Both attributes are essential for ensuring the reliable operation of equipment, preventing accuracy degradation, and potential failures caused by vibrations.?
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2. Stiffness?
In applications involving precision machinery and instruments, stiffness is a key criterion. Deformation in linear motion modules includes changes in the guide rail itself and at the contact surfaces. The module's resistance to deformation directly impacts the relative positions of components and guiding accuracy, making it necessary to evaluate both aspects during the selection process.?
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3. Sensitivity and Positioning Accuracy?
Sensitivity represents the module's capability to achieve the minimum stroke, while positioning accuracy measures its ability to stop precisely at the target location. These two parameters, influenced by factors such as guide rail type, friction characteristics, and transmission stiffness, are crucial for high-precision operations.?

4. Accuracy Retention?
Accuracy retention reflects the module's ability to maintain its geometric accuracy during long-term operation, primarily determined by the wear resistance of the guide rails and dimensional stability. Material compatibility, processing techniques, lubrication methods, and stress conditions all play a role in influencing this characteristic.?
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5. Guiding Accuracy and Thermal Deformation?
Guiding accuracy determines the precision of a moving component's trajectory, affected by factors including the geometric accuracy of guide rails, contact quality, stiffness, and lubrication conditions. Additionally, thermal deformation of the module and its supporting components must be considered to avoid accuracy deviations caused by temperature changes.?
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6. Smoothness?
During low-speed or micro-movements, the linear motion module must avoid stick-slip phenomena. Motion smoothness depends on guide rail design, material compatibility, lubrication effectiveness, and the stiffness of the transmission system, serving as the foundation for continuous and stable operation.?
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7. Motor Compatibility?
Motor selection should align with specific requirements. Stepper motors are suitable for low-demand scenarios, while closed-loop stepper motors enhance speed control. Servo motors offer high speed and precision, and integrated servo motors are ideal for space-constrained applications. Proper motor matching optimizes performance while controlling costs.
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