W2504SA-2P-C5Z5 Pipe-circulating Ball Screw NSK High-precision Ball Screw

The NSK W2504SA-2P-C5Z5 is an SA-type precision finished ball screw, specifically designed for machine tools. It features zero backlash and high precision, allowing direct installation of bearings, couplings, and locknuts, significantly simplifying the assembly process.

Finished-end refers to the ball screw's ends being precision-machined to standard specifications (including steps, threads, keyways, etc.). It can be directly used with standard support units from NSK or THK, requiring no secondary fitting, enabling immediate use. It is widely applicable to small and medium-sized CNC equipment, automation modules, and precision transmission mechanisms that require certain positioning accuracy and rigidity.

Key Advantages of the W2504SA-2P-C5Z5 Ball Screw:

Finished Ends: Both ends have pre-machined bearing positions at the fixed and support ends according to NSK standards (typically matching NSK WBK15 series support units), eliminating the need for secondary machining and significantly shortening equipment assembly cycles.

High Rigidity and Zero Backlash: Through the interference fit (Z) of the internal steel balls, excellent positioning repeatability is maintained even under frequent alternating forward and reverse rotation conditions.

High Efficiency and Low Friction: The ground raceway combined with precision steel balls achieves a transmission efficiency typically exceeding 90%, requiring less effort and generating less heat than a trapezoidal ball screw.

Common Applications of the W2504SA-2P-C5Z5 SA Type Ball Screw:

CNC Machine Tools: X/Y/Z axis transmission for small precision CNC machine tools and engraving machines.

Precision Automation: Semiconductor wafer handling, electronic component placement machines, and robotic arm positioning axes.

Measurement and testing instruments: coordinate measuring machine, linear drive for optical precision testing stage.