DLY High-Speed Low-Noise Ball Screw is designed for linear motion axes that require higher rotational speed, quieter running and stable acceleration than standard ball screw assemblies. With an optimized ball return structure, compact nut design and high Dm-N capability, this ball screw set is suitable for CNC machinery, precision equipment, electronic machinery and high-speed automation systems.
Compared with conventional ball screw structures, this series focuses on reducing internal ball impact during circulation. It helps the transmission system run more smoothly under high-speed movement, frequent start-stop cycles and applications where operating noise, moving mass and space-saving design are important.
What Is a High-Speed Low-Noise Ball Screw?
A high-speed ball screw converts rotary motion into fast and precise linear motion through rolling contact between the screw shaft, nut and steel balls. The main difference of this low-noise high-speed type is the specially designed return system inside the nut. By improving the ball circulation path, the nut can reduce impact and vibration during high-speed rotation, helping the complete axis maintain smoother motion.
For equipment designers, this type of ball screw is especially useful when a standard ball screw can meet the load requirement but may not provide enough speed margin, noise control or acceleration stability. It is often selected for compact machine axes, automated feeding systems, high-speed positioning units and precision mechanical equipment.
Key Performance Advantages
Low Noise During High-Speed Circulation
The return unit is designed to reduce the impact generated when the balls circulate inside the nut. Under suitable lubrication, alignment and operating conditions, the noise level can be reduced by approximately 5–7 dB compared with a general ball screw structure. This makes the series suitable for equipment installed in cleaner, quieter or operator-near production environments.
Compact and Lightweight Nut Design
The optimized nut structure reduces the outside diameter of the nut by approximately 18%–32% compared with common structures of similar function. A smaller nut helps reduce the moving mass of the axis, leaving more space for bearing seats, coupling, motor installation and surrounding machine structure.
High Dm-N Value for Fast Linear Motion
Dm-N value is an important reference for high-speed ball screw selection. It is related to the ball circulation diameter and rotational speed. DLY high-speed low-noise ball screws can support Dm-N values above 220,000 in suitable operating conditions, helping the screw maintain stable circulation when the axis runs at higher speed.
Better Response in Acceleration and Deceleration
In high-speed automation equipment, the ball screw does not only need to rotate quickly. It must also handle frequent start-stop movement, short cycle time and repeated acceleration. The improved return path reduces internal impact, supporting smoother operation when the axis changes speed rapidly.
Accuracy Options for Different Equipment Requirements
Accuracy can be selected according to machine structure, stroke length, positioning requirement and budget. Common accuracy options include C5–C10. For applications requiring higher positioning consistency, the screw grade, preload, support method, end machining accuracy and installation alignment should be confirmed together.
Noise frequency and speed comparison for high-speed low-noise ball screw performance reference.
When to Choose This Ball Screw Series
| Application Requirement | Why This Series Is Suitable | Typical Equipment |
|---|---|---|
| High rotational speed | High Dm-N capability supports stable ball circulation at faster axis movement. | High-speed CNC axis, automation transfer unit, feeding system |
| Lower machine noise | Low-noise return structure reduces internal impact during ball circulation. | Electronics equipment, inspection equipment, precision machinery |
| Compact installation space | Smaller nut outside diameter helps reduce space occupied by the transmission unit. | Compact actuator, customized linear module, limited-space machine axis |
| Frequent acceleration and deceleration | Smooth return path helps reduce impact under repeated start-stop operation. | Pick-and-place unit, automated assembly line, fast positioning axis |
Technical Points for Selection
High-speed ball screw selection should not depend only on diameter and lead. Speed, stroke, load, support method, critical speed, lubrication and mounting accuracy all affect the final performance. For high-speed applications, it is especially important to confirm whether the screw can run within a safe speed range while maintaining rigidity and service life.
| Selection Item | What It Affects | Information to Confirm |
|---|---|---|
| Screw diameter | Rigidity, load capacity, critical speed and installation space | Required load, stroke, mounting direction and available space |
| Lead | Linear speed, drive torque and positioning resolution | Target speed, motor speed range and positioning requirement |
| Total length and working stroke | Critical speed, shaft deflection and support arrangement | Overall length, effective stroke and end machining drawing |
| Accuracy grade | Positioning accuracy and repeatability | Required positioning tolerance, travel length and machine function |
| Preload or clearance | Axial rigidity, backlash control, heat generation and service life | Horizontal or vertical axis, load direction and accuracy requirement |
| Lubrication | Noise, wear, temperature rise and long-term stability | Running speed, duty cycle, environment and maintenance method |
High-Speed Ball Screw vs Standard Ball Screw
A standard ball screw is suitable for many general transmission axes. However, when the machine requires higher speed, lower noise and frequent acceleration, the internal recirculation design becomes more important. A high-speed low-noise ball screw is more suitable when the axis needs to run faster while maintaining smoother movement and better sound performance.
| Comparison Item | Standard Ball Screw | High-Speed Low-Noise Ball Screw |
|---|---|---|
| Main focus | General linear transmission | High-speed, low-noise and smoother circulation |
| Noise control | Depends on standard return structure and installation quality | Optimized return path reduces ball impact noise |
| Nut size | Conventional nut structure | Compact nut design for space-saving installation |
| Acceleration performance | Suitable for ordinary operating cycles | Better suited for repeated high acceleration and deceleration |
Applications
DLY high-speed low-noise ball screws are used in equipment where transmission speed, motion smoothness and stable positioning are all important. Typical applications include CNC machinery, precision tool machinery, electronic machinery, high-speed automation equipment, compact linear modules, testing equipment and customized motion platforms.
- CNC machine feed axes requiring fast and stable movement
- Precision machinery with lower noise requirements
- Electronic equipment and inspection equipment
- Automated assembly lines with repeated start-stop cycles
- Customized linear modules and compact actuator systems
Manufacturing and Quality Control
DLY controls ball screw quality through material inspection, precision machining, nut assembly, grinding, dimensional inspection and final packaging. For high-speed applications, attention is given not only to dimensional accuracy, but also to nut assembly quality, surface condition, end machining consistency and smooth running performance.
Incoming inspection for screw and nut components.
Nut assembly and recirculation structure confirmation.
Shaft inspection and handling before delivery.
End shaft OD grinding for installation accuracy.
Customization Options
DLY can supply high-speed low-noise ball screws according to drawing or application requirements. Custom options include screw diameter, lead, total length, working stroke, nut type, preload or clearance, accuracy grade, end machining, surface protection, lubrication method and matched support units.
| Custom Item | Available Support |
|---|---|
| Screw shaft | Diameter, lead, length, thread direction and end machining according to drawing |
| Ball nut | Compact nut structure, flange arrangement and preload confirmation |
| Accuracy | Accuracy grade selected according to positioning requirement and equipment type |
| Assembly support | Matched support units, coupling and related linear motion components available |
FAQ
Q: What is the difference between a high-speed ball screw and a standard ball screw?
A: A high-speed ball screw uses an optimized return structure to improve ball circulation stability at higher speed. It is better suited for applications requiring faster movement, lower noise and repeated acceleration.
Q: What does Dm-N mean for ball screw selection?
A: Dm-N is a speed-related reference value. It is generally related to the ball circulation diameter and rotational speed. For high-speed use, Dm-N, critical speed, lubrication, support method and load should be checked together.
Q: Can this ball screw reduce machine noise?
A: The low-noise return design helps reduce internal ball impact noise. Actual machine noise also depends on mounting accuracy, bearing support, coupling alignment, lubrication, motor vibration and machine frame rigidity.
Q: Is a larger lead always better for high-speed movement?
A: Not always. A larger lead can increase linear speed at the same motor speed, but it also affects torque, positioning resolution, braking and vertical-axis safety. The lead should match the motor, load and required motion profile.
Q: Can DLY customize end machining for this ball screw?
A: Yes. End machining can be supplied according to customer drawings, including bearing seat sections, threads, keyways, retaining ring grooves and motor connection dimensions.
Q: What information is needed for selection or quotation?
A: Please provide screw diameter, lead, total length, working stroke, load, target speed, mounting direction, accuracy requirement, end machining drawing and quantity. If the application is high-speed, duty cycle and lubrication method are also helpful.
Need Help Selecting a High-Speed Ball Screw?
Share your required speed, stroke, load, accuracy grade and end machining drawing. DLY can help confirm a suitable high-speed low-noise ball screw solution for your equipment.
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