900mm 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 Linear Motion

SFU1605 900mm CNC Ball Screw Kit with Ball Nut and Supports
✔️ 16mm Diameter 5mm Lead RM1605 Ball Screw Assembly

This SFU1605 900mm ball screw kit is made for CNC machines and linear motion systems that need smooth travel, solid stiffness, and accurate positioning over a long stroke. It’s commonly used in CNC routers, automation equipment, and precision motion setups where low friction, stable control, and long service life really matter. Pack size includes a complete matched set with supports, coupler, and ball nut housing, ready for installation.

✅ Pack size: 1 ball screw, 1 ball nut with DSG16H 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: 900mm (35.40 in) including end machining
✅ Precision grade: C7
✅ Rolled thread with shiny wear-resistant surface
✅ Minimum starting torque for easy motor startup
✅ Smooth, low-noise motion with reduced friction
✅ Compact design for easy mounting and removal
✅ Matched ball nut and screw for consistent accuracy

Dimensions
Diameter 16mm (0.630 in)
Lead 5mm (0.197 in)
Overall Length 900mm (35.40 in)

This long-travel SFU1605 assembly helps maintain smooth linear motion, reliable positioning, and reduced drive load across extended CNC axes and automation systems.

💡 Why are long ball screws preferred for precise linear motion over extended travel?
Long ball screws are designed to keep accuracy and efficiency consistent even across large movement ranges.

• Rolling ball contact minimizes friction over long distances

• Matched nut and screw pairing helps control backlash and alignment

• Low starting torque supports smoother acceleration and deceleration

• Wear-resistant surfaces extend service life under continuous motion

A solid pick when you want clean long-range travel, steady accuracy, and dependable performance in CNC and precision automation builds.