The NSK W3221FA-1P-C5Z25 is a high-lead precision ball screw from the NSK FA series. It features a 32mm screw diameter and a 25mm lead, offering high load capacity, high rigidity, low noise, and high-speed operation. It is suitable for high-precision linear drive applications such as CNC machine tools, automation equipment, semiconductor equipment, laser processing, and industrial robots.
The W3221FA-1P-C5Z25 ball screw is a C5 precision grade screw with a preloaded structure and standard end machining design, improving positioning accuracy and operational stability while supporting high-speed continuous operation and long service life.
Features of W3221FA-1P-C5Z25 Finished Ball Screw:
Conduit-type External Circulation: Utilizes a conduit-type external circulation ball screw system, allowing the balls to circulate smoothly within a conduit outside the nut, resulting in a smoother path.
Precise Clearance Control: Zero axial clearance, balancing high-precision positioning with smooth motion, avoiding overheating and wear caused by overload.
Compact Structure: The FA series nut has a 30% smaller outer diameter than traditional products, suitable for confined installation spaces, especially ideal for small automated equipment.
Long Life Design: High-quality bearing steel material + precision heat treatment process, combined with LR3 grease, ensures long-term stable operation.
Applications of NSK 32×25 FA type finished ball screws with shaft end fittings:
Semiconductor manufacturing, Electronic equipment, Medical instruments, Precision measurement, Automation equipment
Item |
Specification |
Model No. |
W3221FA-1P-C5Z25 |
Series |
Shaft End Finished Product |
Type |
FA |
Screw Shaft Diameter [mm] |
32 |
Lead [mm] |
25 |
Accuracy Grade |
C5 |
Ball Diameter [mm] |
4.762 |
Valid Number of Laps |
2.5×1 |
Gap Symbol |
Z |
Circulation Method |
Pipe Circulation |
Nut Length [mm] |
117 |
Maximum travel [mm] |
2046 |
Screw Length (Lt) [mm] |
2180 |
Screw Length (La) [mm] |
2219 |
Screw Length (L) [mm] |
2376 |
Weight [kg] |
15.4 |
Rated Dynamic Load [N] |
12900 |
Rated Static Load [N] |
21100 |
Maximum Speed [Fixed-Free] (min-1) |
930 |
Drive Side Support Unit |
WBK25-01W(Square) WBK25-11(Round) |
Reverse Drive Side Support Unit |
WBK25S-01W(Square) |

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