W2811SA-2Z-C5Z5 SA Type C5 Precision Ball Screw NSK Precision Lead Screw

The NSK W2811SA-2Z-C5Z5 is a C5 precision ball screw with a finished shaft end. It has an outer diameter of 28mm and a lead of 5mm, employing an external tubular ball recirculation structure for smooth transmission.

The W2811SA-2Z-C5Z5 ball screw features offset preload to achieve zero axial backlash. Combined with the high precision grade of C5, it offers precise positioning, strong stability, and excellent load-bearing capacity. Its standard pre-formed shaft end requires no secondary machining, making installation convenient. Balancing high rigidity and low friction, it is widely used in precision machine tools, automated positioning platforms, semiconductor equipment, and various high-precision industrial transmission devices.

Features of NSK SA Type Ball Screws for Machine Tools:

Excellent Precision: Standard C5 precision, with a preload structure achieving zero backlash, high positioning and repeatability accuracy, meeting the precision machining requirements of machine tools.

Sufficient Rigidity: Optimized raceway structure and flange-type nut design provide strong load-bearing capacity and impact resistance, suitable for heavy-duty feed axis operations in small and medium-sized machine tools.

Good Operating Performance: Low frictional resistance, low operating temperature rise, excellent noise reduction from the circulation structure, allowing for higher dn values, and supporting high-speed, stable feed.

Easy Installation: The ball screw shaft end is pre-machined, requiring no secondary machining, and can be directly matched with NSK standard support units, making assembly and equipment replacement simple and efficient.

SA-type lead screws are ideal for equipment with comprehensive requirements for positioning accuracy, installation speed, and space constraints:

CNC machine tools: X/Y/Z axis feed systems for small machining centers, CNC lathes, engraving and milling machines, and grinding machines.

Precision instruments: Measuring equipment, semiconductor manufacturing equipment, and industrial robotic arms.