NSK Ball Screw W2809SA-1P-C5Z5 External Circulation Ball Screw

The NSK W2809SA-1P-C5Z5 ball screw is a high-precision SA-type tubular circulating ball screw specifically designed for machine tools. This model is commonly used in linear transmission applications requiring high rigidity, small lead, and high-precision micro-feed, such as CNC machine tools, precision automation equipment, and precision positioning worktables.

NSK W2809SA-1P-C5Z5 ball screw, shaft diameter 28 mm, lead 5 mm, accuracy class C5, rated dynamic load 13000 N, rated static load 24400 N, nut type PFT.

Key Advantages of the W2809SA-1P-C5Z5 Ground-Grade 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 (P) 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-grade raceway combined with precision steel balls typically achieves a transmission efficiency of over 90%, requiring less effort and generating less heat than a trapezoidal ball screw.

Applications of the finished ball screw W2809SA-1P-C5Z5:

Precision machine tools: machining centers, CNC lathes, grinding machines, etc.

Automation equipment: semiconductor manufacturing equipment, testing instruments, precision positioning platforms

Precision manufacturing: electronic component processing, optical equipment, medical equipment

Suitable for applications requiring high-precision positioning, especially for mass production and standardized equipment.