1. Small friction loss and high transmission efficiency.

2. High accuracy.

3. The possibility of high -speed feed and micro -advance.

4. High stiffness of axial direction.

5. Do not lock themselves, but have the reversibility of transmission.

According to the requirements of the machine tool transmission, the guidance pH is comprehensively considered and determined by factors such as load size and transmission efficiency. When choosing generally, it is determined according to the requirements of the machine tool. The formula is: PH Greater than or equal to VMAX/NMAX (10). In the formula: VMAX - fast feed speed of machine tool workbench, mm/min; NMAX -drive motor high speed, R/min.

Rotating speed × screw distance of the screw=movement speed of the screw side

In other words: rotating speed=the movement speed of the screw side ÷ the screw distance of the screw.

The above formulas are targeted at the single thread. If it is a multi -screw, consider the number of screws.