300mm SFU1204 Ball Screw with RM1204 Metal Nut, End Machined Precision CNC Part, 12mm Diameter, 4mm Lead, Low Friction Quiet Operation for CNC Machines and DIY Projects

300mm SFU1204 Ball Screw with Ball Nut for CNC Motion
✔️ RM1204 12mm Ball Screw with 4mm Lead and Machined Ends

This SFU1204 ball screw is a precision linear motion part designed for compact CNC machines and small automation builds. It’s commonly used in CNC DIY projects, student builds, light industrial motion systems, and home workshops where smooth travel and reliable accuracy are needed.

Pack size: 1 ball screw and 1 metal ball nut

✅ Ball screw diameter: 12mm
✅ Lead and pitch: 4mm per revolution
✅ Overall length: 300mm with end processing
✅ Metal ball nut included for stable load transfer
✅ Low friction design for smooth linear motion
✅ Low operating noise during continuous movement
✅ Reduced heat buildup for longer service life
✅ Helps lower drive power requirements
✅ Handy for CNC machines, DIY motion projects, and small manufacturing setups

Dimensions
Parameter Value
Screw Diameter 12mm
Lead Pitch 4mm
Overall Length 300mm

💡 Why are small diameter ball screws used in compact CNC and DIY motion systems?
Smaller ball screws are ideal when space, efficiency, and smooth control matter more than heavy load capacity.

• Provides precise linear positioning in tight CNC frames

• Reduces friction compared to lead screws for smoother motion

• Keeps noise and heat low during repeated cycles

• Works well with stepper motors in low power motion setups

This ball screw is a handy choice for clean, accurate movement in compact CNC machines, DIY builds, and creative motion projects where smooth performance really counts.