12mm Ball Screw With SFU1204 RM1204 Anti Backlash Linear Motion Screw Set With Nut, 420mm Long, 4mm Lead, Standard End Machining For BK BF10, High Speed Performance And Rock Solid Stiffness For CNC Machines And Precision Milling

Heavy-duty 12mm Ball Screw SFU1204 with Nut for BK/BF10

✔️ 420mm length, 12mm diameter, 4mm lead, anti-backlash

This SFU1204 RM1204 anti-backlash ball screw set is designed for high-speed CNC milling and precise linear motion along BK/BF10 guides. It delivers high static and dynamic stiffness, low friction, and reliable repeatability in demanding machining tasks.

✅ 12 mm diameter, 4 mm lead, total length 420 mm (16.54 in) with standard BK/BF10 end machining
✅ Precision C7 grade (optional C5 grade available)
✅ Rolled thread, GCr15 steel for durability
✅ Includes 1 ball screw nut, anti-backlash design for tight positioning
✅ Low friction, quiet operation, reduced heat during high-speed feeds
✅ Bidirectional rotation with equal performance in clockwise and counterclockwise directions

💡 What is a ball screw with anti-backlash used for in precision machinery? - handy for high-precision CNC milling and linear motion tasks - reduces stick-slip and wear, keeping motion smooth and repeatable - commonly used with SFU1204 RM1204 sets and BK/BF10 guides for consistent results