W2002SA-1P-C5Z4 NSK FA Type Ball Screw External Circulation Ball Screw

The NSK W2002SA-1P-C5Z4 ball screw is a small lead, shaft-end finished ball screw. It has a diameter of 20mm, a lead of 4mm, and is a C5 precision ball screw. It comes with a PFT flange nut and is suitable for precision linear drives.

NSK SA series pre-machined ball screws are high-precision ball screws for machine tools. Their features include:

The shaft end is pre-machined to standard specifications, allowing direct installation of bearings and couplings.

Suitable for CNC machine tools, automated equipment, and high-precision positioning mechanisms.

Common accuracy grade is C5.
Features a high-rigidity design, suitable for high-speed feed and heavy loads.

Compared to the unmachined SS series, it reduces secondary machining time for customers.

NSK SA type pre-finished ball screws are widely used in CNC machine tools, semiconductor equipment, industrial automation, new energy equipment, medical instruments, and aerospace industries. Because their shaft ends are pre-machined to a standardized finish, they can be directly installed and used, effectively shortening equipment assembly cycles, reducing processing costs, and improving overall assembly consistency.