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The Difference Between Ball Screw And Trapezoidal Screw

Mar 18, 2020

The difference between ball screw and trapezoidal screw.The internal circulation of the lead screw adopts the circulation realized by the reverse machine. The reverse groove is positioned by the aid of the outer circle surface and the circle key at the upper end to ensure the direction of the thread raceway.So, what's the difference between a ball screw and a lead screw?Let's look at it briefly.

First, transmission speed.Ball screw is mostly rolling friction, and the ordinary screw is sliding friction, working temperature rise is lower than the ordinary screw.

Second, service life.Under the condition that cleaning and lubrication conditions are met, the service life of ball screw is higher than that of ordinary screw.

Third, transmission efficiency.The transmission efficiency of ball screw is more than 90%, but the transmission efficiency of the ordinary screw is between 26-46%. In order to reduce the cost, the screw with higher transmission efficiency can be used.

Through these three points can be seen, the difference between the two kinds of lead screw or many, so in the future when you choose the lead screw, you can consider the specific requirements.