... gap: P0: with gap; P1: zero gap; P2: light preload; P3: Heavy preloadPurpose:Ball Screw/Lead Screw is widely used ... precise instrument, especially for CNC machine. It is the heart to the high-speed machine.Ball Screw is used for transfer the ... accuracy, repeat positioning accuracy, shiffness, lead length, hole diameter of screw cap and so on.As a professional manufacture, we also design the ball screw ...