W2504SA-1P-C5Z4 SA Ball Screw NSK External Circulation Ball Screw

The NSK W2504SA-1P-C5Z4 is an NSK SA series shaft-end finished ball screw with a diameter of 25mm and a lead of 4mm. It adopts a single-nut preload structure and C5-grade precision design, which has high transmission accuracy, rigidity and smooth operation.

NSK SA type pre-machined ball screws belong to the high-precision ball screw series 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.

Adopting 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-machined 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 and can be directly installed and used, they effectively shorten equipment assembly cycles, reduce processing costs, and improve overall assembly consistency.