W3214SA-5Z-C5Z8 shaft end finished product NSK SA type offset preload ball screw

The NSK SA type W3214SA-5Z-C5Z8 is a finished ball screw with a shaft end. It has a 32mm diameter and 8mm lead, employs C5 precision and a Z-preload structure, and features high positioning accuracy, zero backlash, and high rigidity. Equipped with a ZFT external circulation nut, it supports high-speed feed and is suitable for precision transmission systems in CNC machine tools, machining centers, and automated equipment.

The main features of the W3214SA-5Z-C5Z8 precision ball screw are as follows:

① High precision and zero backlash—It achieves a precision grade of C5 and uses offset preload (Z-type), ensuring zero axial backlash at the factory and guaranteeing no backlash during reverse positioning;

② High rigidity and heavy load capacity—The screw shaft diameter is 32mm, equipped with 4.762mm steel balls, and the rated static load is up to 40,900N, capable of withstanding heavy-duty cutting and frequent start-stop operations;

③ High efficiency and long service life—The ball rolling transmission efficiency can reach over 90%, and the raceway is high-frequency quenched to HRC 58~62, exhibiting excellent wear resistance;

④ Easy installation—It is a finished shaft product, with both ends pre-machined to standard specifications, requiring no secondary grinding before direct assembly into equipment.