Pro-Grade 25mm CNC Ballscrew Kit 70 Inch SFU2504 Anti-Backlash Assembly With Nema 34 Motor Bracket, BKBF20 Bearing Ends, Flexible Coupler, And Nut Housing For Rock-Solid Machining Upgrades

Precision CNC ballscrew upgrade kit with matching mounts
✔️ 25mm SFU2504 ball screw with cast steel mounts and flexible coupler

This complete CNC ballscrew assembly replaces worn linear guides on milling machines and router setups. You get exact positioning for heavy cutting tools without backlash or drift. The kit fits straight into standard frame rails for quick benchtop upgrades.

✅ 25mm (0.98 inch) diameter SFU2504 screw features 4mm (0.16 inch) pitch for smooth micro-feeding
✅ C7 grade rolled GCr15 steel delivers consistent cutting accuracy across the run
✅ Integrated BKBF20 bearing blocks hold shaft alignment under heavy loads
✅ Flexible coupler bridges the motor directly to reduce vibration transfer
✅ Complete hardware includes locknuts, circlips, and secure nut housing tray

💡 What keeps a linear drive axis tracking true during heavy material cuts?
A handy rig runs slick and holds its form when you take full depth cuts.
- Rigid cast steel end blocks kill unwanted play while you push thick material
- Balanced torque transfer through the flex sleeve keeps steps moving steady
- Simple grease refreshes protect the chrome finish and extend service life

✝️