SFU1204 Ball Screw Kit 300Mm Long 12Mm Dia 4Mm Lead With Nut Anti Backlash Standard End Machining For BK BF12 CNC Machines Pro Grade Beefed Up Precision For Smooth Linear Motion

High-precision 1-pc SFU1204 Ball Screw Kit, 300mm length
✔️ 1 pc kit; 300mm long, 12mm dia, 4mm lead, anti-backlash nut, BK/BF12 ready

This 1-pc SFU1204 ball screw kit delivers precise linear motion for CNC machines, especially BK/BF12 style setups. It’s built to reduce backlash and maintain accurate positioning over long runs.

✅ Total length: 300 mm (11.81 in)
✅ Diameter: 12 mm (0.47 in)
✅ Lead: 4 mm
✅ Nut: anti-backlash included; end machining for BK/BF12
✅ Material: bearing steel for high load and wear resistance

💡 What is a ball screw kit used for in CNC systems? - Handy for converting rotation into precise linear motion in CNC - Reduces friction and backlash for repeatable positioning - Common in BK/BF12 setups and small to mid-size milling and routing projects