Precision Ground BallScrews-High Lead Series
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Information
High-lead ball screws are an essential component for high-speed machine tools in the 21st century. High-speed cutting technology is an important breakthrough in machine tool technology in the 20th century and will be further developed in the 21st century. Therefore, high-lead ball screws play an even more important role in high-speed machine tools.
Features
It is important for a High-lead Ballscrew to be with characteristics of high rigidity, low noise and thermal control.Designs and treatments are taken for following：
High DN Value
The DN value can be 130,000 in normal case. For some special cases, for example in a fixed ends case, the DN value can be as high as 140,000. Please contact our engineers for this special application.High Speed
PMI 's High-speed Ballscrews provide 100 m/min and even higher traverse speed for machine tools for high performance cutting.High Rigidity
Both the screw and ballnut are surface hardened to a specific hardness and case depth to maintain high rigidity and durability. Multiple thread starts are available to make more steel balls loaded in the ballnut for higher rigidity and durability.Low Noise
Special design of ball circulation tubes offer smooth ball circulation inside the ballnut. It also makes safe ball fast running into the tubes without damaging the tubes.Accurate ball circle diameter (BCD) through whole threads for consistent drag torque and low noise.Precision Ground BallScrews-High Lead Series
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