The NSK W2515FA-4-C5T25 ball screw has a 25 mm shaft diameter, 25 mm lead, C5 accuracy, and preload (micro-backlash). The W2515FA-4-C5T25 preloaded ball screw has a thread length of approximately 1500 mm, making it suitable for high-speed feeding and rapid positioning. It features a compact structure and smooth operation.
The main features of the W2515FA-4-C5T25 external circulation ball screw are as follows:
High positioning accuracy: Accuracy grade up to C5, precision ground for smooth operation.
Compact structure: Flange-type single-nut design saves installation space.
Wide applicability: Designed specifically for industrial automation equipment (FA series), commonly found in CNC machine tools, industrial robots, automotive equipment, and precision manufacturing lines.
Applications of NSK FA type shaft-end finished ball screws:
CNC machine tools: machining centers, lathes, milling machines, etc.
Automation equipment: industrial robots, automated assembly lines, precision positioning platforms
Semiconductor equipment: wafer handling, testing equipment
Medical equipment: precision medical instruments, diagnostic equipment
Precision measuring instruments: coordinate measuring machines, image measuring instruments
Item |
Specification |
Model No. |
W2515FA-4-C5T25 |
Series |
Shaft End Finished Product |
Type |
FA |
Screw Shaft Diameter [mm] |
25 |
Lead [mm] |
25 |
Accuracy Grade |
C5 |
Ball Diameter [mm] |
4.762 |
Valid Number of Laps |
1.5×1 |
Gap Symbol |
T |
Circulation Method |
Pipe Circulation |
Nut Length [mm] |
90 |
Maximum travel [mm] |
1446 |
Screw Length (Lt) [mm] |
1550 |
Screw Length (La) [mm] |
1580 |
Screw Length (L) [mm] |
1713 |
Weight [kg] |
7.0 |
Rated Dynamic Load [N] |
11700 |
Rated Static Load [N] |
19700 |
Maximum Speed [Fixed-Free] (min-1) |
1400 |
Drive Side Support Unit |
WBK20-01A(Square) WBK20-11(Round) |
Reverse Drive Side |
WBK20S-01(Square) |

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