Ball screw is also called a ball screw CNC, recirculating ball screw, or linear ball screw.
DFU ball screw and SFU ball screw have a similar structure. DFU is a double-nut CNC ball screw, SFU is a single-nut linear ball screw.
So DFU recirculating ball screw is more accurate and longer life than SFU.
We’re a leading supplier of Ball screws, Linear Rails, Linear Bearings, Support Units, Motor Brackets, Couplings, etc.
We will contact you within 1 working day, please pay attention to the email with the suffix “@limobearing.com”.