The W2517FA-2-C5T20 is one of the standardized ball screw models in NSK FA Series, belonging to the A-Series ball screws with machined shaft ends.
Features of the W2517FA-2-C5T20 Shaft-End Finished Ball Screw:
High Precision: C5 grade precision ensures minimal lead error over long strokes.
High Transmission Efficiency: The rolling motion of the balls between the screw and nut results in low friction loss and higher efficiency than sliding screws.
Good Stability and Durability: NSK's proprietary manufacturing processes and materials ensure stability under high speed and heavy loads.
Application Industries 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. |
W2517FA-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] |
1640 |
Screw Length (Lt) [mm] |
1750 |
Screw Length (La) [mm] |
1780 |
Screw Length (L) [mm] |
1913 |
Weight [kg] |
7.6 |
Rated Dynamic Load [N] |
18600 |
Rated Static Load [N] |
32600 |
Maximum Speed [Fixed-Free] (min-1) |
1090 |
Drive Side Support Unit |
WBK20-01A(Square) WBK20-11(Round) |
Reverse Drive Side |
WBK20S-01(Square) |

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