40mm SFU4010 Ball Screw Kit With RM4010 Ball Nut BK30 BF30 End Supports And 17x14mm Coupler Precision CNC Linear Motion Assembly For DIY Projects Ideal For CNC Machining Enthusiasts And Pro Hobbyists

High-precision 40mm SFU4010 Ball Screw Kit for CNC
✔️ 40mm SFU4010 screw with RM4010 nut, BK30/BF30 supports

This precision ball screw kit is designed for CNC machines, DIY routers, and milling gantries, delivering smooth, low-backlash linear motion for accurate positioning in hobbyist and professional projects.

✅ 40 mm diameter SFU4010 ball screw (lead 10 mm / 0.394 in)
✅ RM4010 ball nut for smooth, precise travel
✅ BK30 BF30 end supports for rigid mounting
✅ 17x14 mm coupler bore for reliable motor coupling (0.669 in x 0.551 in)

💡 What is a ball screw kit used for in CNC motion systems for precise control?

This handy setup converts rotary motion into precise linear travel for CNC machines and DIY builds. - CNC builders use it for accurate axis control - Ideal for DIY routers, mills, and gantry projects - Low backlash and smooth travel improve repeatability - Compatible with RM4010 nut and BK30/BF30 end supports