700mm SFU1605 CNC Ball Screw Assembly with Ballnut, BK12 BF12 Supports & Coupler, 16mm Diameter 5mm Pitch RM1605 End Machined Ballscrew, C7 Precision Shiny Surface for Smooth Low-Torque CNC Motion

SFU1605 700mm CNC Ball Screw Kit with Ball Nut and Supports
✔️ 16mm Diameter 5mm Lead RM1605 Ball Screw Assembly

This SFU1605 700mm ball screw kit is built for CNC machines and linear motion systems that need smooth travel, solid stiffness, and dependable positioning over a longer stroke. It’s commonly used in CNC routers, automation equipment, and motion platforms where controlled axial movement and low friction really matter. Pack size includes a complete ready-to-install set with supports and coupler.

✅ Pack size: 1 ball screw, 1 ball nut with housing, 1 BK12 support, 1 BF12 support, 1 coupler
✅ Ball screw model: SFU1605 / RM1605
✅ Nominal diameter: 16mm (0.630 in)
✅ Lead pitch: 5mm (0.197 in) per revolution
✅ Overall length: 700mm (27.56 in) including end machining
✅ Precision grade: C7
✅ Rolled thread with shiny wear-resistant surface
✅ Low starting torque for smooth motor response
✅ Compact design for easy mounting and removal
✅ Matched ball nut and screw for consistent accuracy
✅ Handy for CNC machines, automation systems, and motion control builds

Dimensions
Diameter 16mm (0.630 in)
Lead 5mm (0.197 in)
Overall Length 700mm (27.56 in)

This longer SFU1605 setup delivers smooth linear motion, reduced friction, and stable positioning for CNC and automation projects that demand consistent performance across extended travel.

💡 Why are C7 precision ball screws used for long-travel CNC motion systems?
C7 ball screws offer a practical balance between accuracy, durability, and cost for extended linear movement.

• Rolled threads reduce friction while maintaining reliable positioning accuracy

• Matched ball nut assemblies help control backlash and improve stiffness

• Low starting torque supports smoother acceleration and motor efficiency

• Wear-resistant surfaces extend service life in continuous-duty motion setups

A strong choice when you want smooth travel, controlled motion, and dependable accuracy for longer CNC axes and linear drive applications.