550mm 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 550mm CNC Ball Screw Kit with Ball Nut and Supports
✔️ 16mm Diameter 5mm Lead RM1605 Ball Screw Assembly
This SFU1605 550mm ball screw kit is designed for CNC machines and linear motion systems that need smooth travel, solid stiffness, and accurate positioning over a compact to mid-range stroke. It’s commonly used in CNC routers, automation frames, and precision motion builds where low friction and steady control are key. Pack size includes a complete matched setup with supports, coupler, and ball nut housing, ready to install.
✅ 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: 550mm (21.70 in) including end machining
✅ Precision grade: C7
✅ Rolled thread with shiny wear-resistant surface
✅ Minimum starting torque for easy motor startup
✅ Compact design for simple mounting and removal
✅ Matched ball nut and screw for stable accuracy
Dimensions
Diameter 16mm (0.630 in)
Lead 5mm (0.197 in)
Overall Length 550mm (21.70 in)
This SFU1605 setup delivers clean linear motion, reduced friction, and dependable positioning for CNC and automation systems using shorter to mid-length axes.
💡 Why are matched ball screw assemblies important for precision CNC movement?
Matched ball screw assemblies help maintain accuracy, smoothness, and long-term reliability in motion systems.
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Factory-matched components control backlash and alignment
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Consistent preload improves stiffness and positioning accuracy
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Low friction supports smooth motion and lower drive load
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Proper matching extends service life under continuous operation
A smart option when you want smooth travel, stable accuracy, and reliable performance in CNC and precision automation builds.