CNC SFU1204 Ball Screw 360 mm with Anti-Backlash Nut
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Prices updated: 13 Oct 2026
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About this product
A 12 mm diameter ball screw with a 4 mm pitch and 360 mm length, with machined ends and an anti-backlash nut. It is used for precise linear motion in 3D printers and CNC machines, such as the Z-axis drive. The anti-backlash nut reduces play between the nut and the screw.
Specifications
- Model
- SFU1204
- Diameter
- 12 mm
- Pitch
- 4 mm
- Length
- 360 mm
- Machined end dimensions
- L12 x 8 mm
- Nut type
- Anti-backlash
Frequently asked questions
What does a 4 mm pitch mean?
Each full revolution of the screw moves the nut 4 mm along its axis. This sets the linear travel per turn when calculating motor steps and axis resolution.
What does the anti-backlash nut do?
It reduces axial play between the nut and the screw, which improves positioning accuracy. Before installation, check that the machined ends match your end-support bearings and coupler.
