SFU1204 Anti-Backlash Ball Screw Nut for 12mm Ball Screw (RM1204)
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Prices updated: 14 Oct 2026
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About this product
Single anti-backlash ball screw nut, model SFU1204 (also listed as RM1204), for 12 mm ball screws with a 22 mm outer diameter. Used in CNC machines, 3D printers and linear motion stages to move a carriage precisely along a lead screw with reduced backlash.
Specifications
- Model
- SFU1204
- Alternative designation
- RM1204
- Ball screw diameter
- 12 mm
- Nut outer diameter
- 22 mm
- Nut type
- Single anti-backlash / منفردة مضادة للارتداد
Frequently asked questions
Which screw does this nut fit?
It is made for a 12 mm ball screw. Confirm the screw's diameter and lead match the SFU1204 designation before fitting.
What does anti-backlash mean?
Backlash is the small amount of play between the nut and the screw when the direction of motion reverses. Anti-backlash nuts are designed to reduce this play, which improves positioning accuracy.
