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SFU 1204 Ball Screw and Flanged Nut


SFU 1204 Ball Screw and Flanged Nut


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Product Description

Have a ball-screw design sitting on your computer? We can help!

Smw3D now offers a high quality 1204 ball screw and flanged nut package that will get your project off to a great start and offer all the benefits of this drive to your design. 

Ball screws are used much like belts and ACME threads to change the rotational motion of a stepper motor to precise, low friction, linear motion. 

Use a ball screw when your build requires :

  • Low backlash
  • Low friction
  • Precise control


  • Material: GCR15
  • Accuracy rating: C7 Rolled Ball Screw
  • SFU1204 -1
  • Diameter of rod 12mm
  • Lead 4mm
  • Ball diameter 2.381
  • Rated load Dynamic 400 Kg, Static 670Kg
  • Flange Diameter 42mm
  • Flange Barrel 22mm
  • Flang flats (surface to surface)34mm
  • Length of nut 36mm
  • Open grease port 
  • Plain ends
  • 6 mounting holes on the flange nut, use M4 hardware.
  • Rolled thread

We will be offering machined ends soon. 

Current lengths available: 300mm




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  1. Great Product, exactly as advertised. But does not come with the Nut Housing Mounting Bracket Holder

    Posted by on Jun 25th 2018

    Well this is a good product. Exactly as advertised, and the right size I wanted. It was packaged well from damage. It also shipped fast. Also a great price.
    But it does not come with the Nut Housing Mounting Bracket Holder. Had to buy that separately which was a bummer. That's why only 4 stars . Other sellers sale the housing with the screw and nut.

  2. Looks good!

    Posted by on Oct 12th 2016

    Looks good, quick delivery. thanks SMW3D!

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