The NSK W2009FA-3P-C5Z20 is a FA series high-lead ball screw with an outer diameter of 16mm and a lead of 16mm, classified as C5 precision. The W2009FA-3P-C5Z20 ball screw, with its preload structure, achieves zero axial backlash, combining high rigidity, high speed, low noise, and stable transmission performance. It is suitable for transmission applications with stringent requirements for positioning accuracy and rigidity, such as precision machine tools, automation modules, and semiconductor equipment.
NSK W2009FA-3P-C5Z20 Ball Screw Features:
High Precision (C5 grade): Manufactured using a grinding process, resulting in small lead error and high repeatability, suitable for CNC machine tools and precision positioning systems.
Good Rigidity: Axial backlash can be eliminated through preload, improving overall rigidity, suitable for bearing cutting forces or dynamic loads.
High Load Capacity: Multiple balls bear force simultaneously, resulting in uniform load distribution and the ability to withstand large axial loads.
Standardized Shaft End (FA Type): The shaft end is pre-machined and can be directly installed with standard support seats (such as BK/BF) without secondary machining.
External Circulation (Ball Return Type): The balls roll inside the nut to bear the load and then return to the circulation channel through an external ball return tube. The structure is mature and stable, suitable for routine industrial operating conditions.
Typical application industries for NSK FA type shaft-end finish quality control circulating ball screws:
I. Automation equipment industry
II. CNC machine tools and machining equipment
IV. Medical and laboratory equipment
V. Packaging and printing equipment
VI. Robotics and intelligent equipment
Item |
Specification |
Model No. |
W2009FA-3P-C5Z20 |
Series |
Shaft End Finished Product |
Type |
FA |
Screw Shaft Diameter [mm] |
20 |
Lead [mm] |
20 |
Accuracy Grade |
C5 |
Ball Diameter [mm] |
3.969 |
Valid Number of Laps |
1.5×1 |
Gap Symbol |
Z |
Circulation Method |
Pipe Circulation |
Nut Length [mm] |
63 |
Maximum travel [mm] |
841 |
Screw Length (Lt) [mm] |
910 |
Screw Length (La) [mm] |
935 |
Screw Length (L) [mm] |
1020 |
Weight [kg] |
3.0 |
Rated Dynamic Load [N] |
6250 |
Rated Static Load [N] |
8760 |
Maximum Speed [Fixed-Free] (min-1) |
3000 |
Drive Side Support Unit |
WBK15-01A(Square) WBK15-11(Round) |
Reverse Drive Side |
WBK15S-01(Square) |

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