CNC 1204 Ball Screw 400 mm with SFU1204 Anti-Backlash Nut
Part number: SFU12043D Printer & CNC Parts
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Prices updated: 14 Oct 2026
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About this product
A 12 mm diameter ball screw with a 4 mm pitch and 400 mm length, supplied with machined ends and an SFU1204 anti-backlash nut. It is used for linear motion in CNC machines and 3D printer based motion systems that need smooth, low-friction travel.
Specifications
- Diameter
- 12 mm / 12 ملم
- Pitch
- 4 mm / 4 ملم
- Length
- 400 mm / 400 ملم
- Nut
- SFU1204 anti-backlash / SFU1204 مانعة للارتداد
- Ends
- Machined ends / أطراف مُشغَّلة
Frequently asked questions
What is included in the package?
The listing includes one 400 mm ball screw and one SFU1204 nut. Bearings, couplings and a motor are not listed as included.
What does the 4 mm pitch mean?
Each full turn of the screw moves the nut 4 mm along its length. With a stepper motor, the distance per step depends on the motor's step angle and any microstepping setting.
