Power Transmission Products By ChowThink

• SFU1204-390mm Ball Screw kit2Pcs Ballscrew SFU1204-390mm with ball nut+Decoupling device+Special CNC machining screw seat+Special CNC machining motor support+Accessories for Ender3 S1/S1 pro dual Z-axis Upgrade.This kit is compatible with the ChowThink linear rail kit.
• Higher Precision&Smooth RunningThe trapezoidal screw belongs to sliding friction, but the ball screw is rolling friction, Through the movement of the ball, the heat is less and the precision is high?The efficiency is 2-4 times than the trapezoidal screw,which can make the Z-axis screw run more smoothly which can make your printer capable of printing with higher precision.
• HIGH-QUALITY Material&AccessoriesBall screw is precision machined from high strength steel, and equipped with special customized CNC machining screw seat/motor support/decoupling device'so that it has higher precision and stronger load capacity.
• Parameter Specification1.Processing Mode?cold rolling 2.Screw diameter: 12mm 3.Pitch: 4mm 4.Lead: 4mm 5.Screw material: S55C 6.Nut material: 20CrMoV 7.Accuracy class: C7(the stroke error within any 300mm length shall not exceed 0.05mm)
• Notice: The stroke of SFU1204 is 4mm, which is different from the original T-screw,please change the pulse value from 400 to 800. If the lead screw is a little rough at first, please turn it several times, because new mechanical products need to be run in. If you have any installation questions, please feel free to contact us, we will reply you within 24 hours.