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DFA Series Features
- Low noise (3~5 dB lower than general products)
The optimized return path design can absorb the noise generated by the impact of the steel ball and reduce the noise value.
- Good sound quality
Not only can it reduce the sound pressure value, but the mid-high frequency is significantly lower than the traditional cycle, so that it has no sharp and harsh friction sound and presents better sound quality.
- Low vibration and smooth operation
The tangent design greatly reduces the impact force of the ball running and the resistance of the guide ball, making the vibration of the nut body more gentle and the rotation more smooth and stable.
Specification parameter of ball bearing screws DFA series
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Manufacturing process
Grinding
Milling
Factory processing
Factory machining of ball bearing screws involves several critical steps to ensure their precision, durability, and performance.
Ball screw life
The life of a ball bearing screw is determined by the basic dynamic load rating.
- Relationship between temperature and life
For the temperature of the ball bearing screw, when it is higher than 100 degrees Celsius, the basic rated dynamic load decreases as the temperature decreases. - Relationship between hardness and life
Generally, for the hardness of the screw, when it is lower than HRC58, the basic rated dynamic load should decrease as the hardness decreases.
How to Test Ball Bearing Screws?
Hardness tester
Laser screw lead measuring instrument
Mitutoyo Contour Gauge
Projection measuring instrument
Screw dynamic tester
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