SFU2005 RM2005 Ball Screw Assembly 450mm 20mm Diameter With Ballnut And Housing End Supports BK BF15 And Coupler For CNC Machines High Precision 0.05 mm Tolerance Low Noise Smooth Rotation Beefy Steel Build

Premium 450mm 20mm ball screw assembly for CNC, single unit
✔️ 20mm dia, 450mm length, BK/BF15 supports, nut & housing

This ball screw assembly is a precision linear transmission component used in CNC machines to convert rotary motion into precise linear travel. It includes a ball screw with end machining options, ball nut, nut housing, end supports BK/BF15, and a coupler.

✅ Precision tolerance ±0.05 mm
✅ 20 mm diameter, 450 mm length, steel Gcr15 or 45# body
✅ Includes ball nut, nut housing, end supports BK/BF15, and coupler
✅ Low-noise, smooth rotation and high transmission efficiency

💡 What is a ball screw assembly used for in precision CNC machines and what makes it precise?

In short, it converts rotary motion into precise linear travel with rolling elements that cut friction.

- Ball screw geometry and rolling elements reduce backlash and wear
- Used on CNC axes, milling tables, and precision actuators
- Delivers smooth, quiet operation and repeatable positioning
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