Compared with sliding screws and other linear transmission methods, ball screws have incomparable advantages:
High efficiency: The transmission efficiency is as high as 90% or more (sliding screws are usually less than 50%), which means smaller driving torque and lower energy loss, significantly saving energy and reducing motor load.
High precision and high rigidity: The precision-made raceway and preload design provide excellent positioning accuracy and repeatability. At the same time, the ball structure with point contact or slight elliptical contact gives the system extremely high axial rigidity, effectively resists deformation caused by load changes, and ensures motion stability.
Long life and high reliability: Rolling friction greatly reduces wear, and with proper lubrication and maintenance, the service life is far longer than that of sliding screws. High-quality materials and heat treatment processes further guarantee its durability.
Predictability: The friction coefficient is small and stable, the movement is smooth and smooth, the starting torque is small, there is no creeping phenomenon, and the motion characteristics (speed, acceleration, positioning) are easier to accurately control.
Excellent synchronization: In a multi-axis system, the ball screw can achieve precise synchronous motion to meet the needs of complex trajectory control.
Micro-feed capability: It can achieve small and precise linear displacement to meet the needs of high-precision processing and positioning.