






⚙️ Elevate your CNC game with precision and power!
The SFU1204 Ball Screw Kit features a 12mm diameter, 400mm lead screw made from durable, high-temperature resistant steel. Designed for CNC machines, it offers minimal friction for extended service life and comes as a complete set including ball screw nut, end supports, coupler, and nut housing—ensuring easy installation and reliable performance.



| Manufacturer | BUVVTPU |
| Part number | 1 |
| Item Weight | 1.24 kg |
| Package Dimensions | 47.4 x 8.5 x 6.2 cm; 1.24 kg |
| Manufacturer reference | 1 |
| Size | 400MM |
| Style | SFU1204 |
| Material | Metal |
| Batteries Required? | No |
K**R
Recommended.
Excellent, used during a CNC conversion on a milling machine.
A**L
Excellent for the money.
Bought to replace lathe cross slide Acme screw and brass nut that was causing 0.3mm backlash, this ball screw has eliminated that completely. Rolled ball thread causes a little end of screw runout, the oil / grease seal is ineffective and in the 12mm size it’s prone to being driven but these minor issues in my case didn’t matter especially considering its at least one tenth the price of a graded one and around one twentieth the price of a ground one..
T**Y
good item
easy to install
J**N
Better than I expected.
These SFU1605 600mm are top quality, I got 3 for a big 3d printer I am building and they are the best quality I found for a really good price.
R**T
All that arrived was one bearing block
"kit" arrived with no items except one of the bearing blocks, huge box for the one tiny item
H**E
Good service, great value for money
I have purchased several ball screws in different lengths from this company and their customer service is great, answering questions quickly . The ball screws are of good quality and great value for money.
Trustpilot
4 days ago
2 months ago