The efficiency due to frictional losses is very low, as the contact surfaces between the spindle and the nut are very large. Lead screws are a favorable solution for spindle axes. For vertical operation or as a positioning axis, they offer the advantage that the Lead screw is self-braking or self-locking and can cover an increased need for safety.
For your application, this means that the axis only needs to be switched on during movement and also holds its position when switched off. However, regular lubrication is necessary for continuous operation.
Lead screw drives are mainly used when higher feed forces can be used at low running performance at interesting costs.
