The NSK W2507FA-2-C5T20 ball screw is a large-lead ball screw with an outer diameter of 25mm and a lead of 20mm. It is 913mm in length and features C5-grade precision and preload design to achieve zero axial backlash.
The W2507FA-2-C5T20 shaft-end finished flange type ball screw has a compact structure and high load-bearing capacity, making it suitable for linear transmission applications in automated equipment, CNC machinery, and other scenarios requiring a balance between speed and rigidity.
Key features of the NSK W2507FA-2-C5T20 ball screw:
Pre-machined shaft end: The mounting section and threads are pre-machined at the factory, allowing for direct assembly and use, reducing processing costs and errors.
High precision and zero backlash: It boasts C5-level precision and achieves zero axial backlash through preload, eliminating reverse motion errors and ensuring high positioning accuracy.
High load capacity and high rigidity: With a 25mm outer diameter screw shaft and a 20mm lead design, it possesses high rigidity, enabling stable operation under heavy loads.
The NSK W2507FA-2-C5T20 ball screw is commonly used in:
CNC machine tools: feed axes of CNC machining centers, lathes, and milling machines.
Automated production lines: robotic arms and material handling robots.
Precision measuring instruments: coordinate measuring machines, etc.
Item |
Specification |
Model No. |
W2507FA-2-C5T20 |
Series |
Shaft End Finished Product |
Type |
FA |
Screw Shaft Diameter [mm] |
25 |
Lead [mm] |
20 |
Accuracy Grade |
C5 |
Ball Diameter [mm] |
4.762 |
Valid Number of Laps |
2.5×1 |
Gap Symbol |
T |
Circulation Method |
Pipe Circulation |
Nut Length [mm] |
96 |
Maximum travel [mm] |
640 |
Screw Length (Lt) [mm] |
750 |
Screw Length (La) [mm] |
780 |
Screw Length (L) [mm] |
913 |
Weight [kg] |
4.0 |
Rated Dynamic Load [N] |
18600 |
Rated Static Load [N] |
32600 |
Maximum Speed [Fixed-Free] (min-1) |
2800 |
Drive Side Support Unit |
WBK20-01A(Square) WBK20-11(Round) |
Reverse Drive Side |
WBK20S-01(Square) |

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