SFU 3205-4 | ASE | CNC Ball Screw | Standard Ball Nut

The SFU 1605-4 Ball Screw Nut is a precision linear-motion component engineered for CNC machines, 3D printers, engraving machines, robotics, and other automated systems where smooth, accurate, and repeatable linear travel is required. It works with a screw shaft of 16 mm diameter and a 5 mm lead, converting rotational motion into reliable linear displacement with minimal friction. The nut features a 4-circuit internal ball-recirculation design that reduces backlash and enhances rigidity, which improves positioning accuracy and repeatability under load. Made from hardened alloy/ bearing-steel, the SFU 1605-4 nut is built for durability and long service life—even under continuous use. Thanks to its standard flange-style mounting, it is compatible with common nut housings and support units (e.g. BK12/BF12), making it a convenient choice for both DIY and industrial linear-motion setups.

SFU 2010-4 Ball Screw Nut

The SFU 2010-4 Ball Screw Nut is a precision linear-motion component built for CNC machines, automation systems, and other machinery where accurate, repeatable linear displacement is needed. It works with a 20 mm diameter screw and a 10 mm lead, translating each full screw revolution into 10 mm of linear travel — giving faster traverse compared to lower-lead screws. The nut uses an internal recirculating ball circuit (4‑circuit design) that reduces friction and backlash, improving rigidity and positioning accuracy under load. Constructed from hardened bearing/alloy steel for both nut and screw, it delivers good durability and lifespan even under repeated or heavy-duty use. Its flanged nut design uses a standard mounting arrangement, compatible with common supports and nut‑housings, making SFU 2010-4 a convenient and dependable choice for linear-motion axes in CNC, milling, or automation setups.