The NSK W2802SA-1P-C5Z5 is a high-precision, ground ball screw from the NSK A series, primarily used in precision industrial machinery, CNC machine tools, and automation systems requiring precise, repeatable, and heavy-duty motion control.
The NSK SA series pre-finished ball screws are high-precision, standard ball screws designed by NSK specifically for machine tool and heavy-duty equipment feed systems.
Key advantages of the W2802SA-1P-C5Z5 pre-finished ball screw:
Ready to use: The shaft ends of the screw are pre-machined to NSK's official standard bearing housing specifications before leaving the factory, requiring no secondary machining and allowing direct installation of standard support seats (such as the WBK series).
Extremely short lead time: As a standard NSK inventory item, large-volume planned production significantly reduces delivery time and procurement costs.
Excellent durability: Made of high-purity alloy steel with high-precision grinding grooves (Gothic arc grooves), it has extremely low frictional resistance and can maintain stable positioning accuracy even after long-term operation.
Item |
Specification |
Model No. |
W2508FA-1PGX-C5Z50 |
Series |
Shaft End Finished Product |
Type |
SA |
Screw Shaft Diameter [mm] |
28 |
Lead [mm] |
5 |
Accuracy Grade |
C5 |
Ball Diameter [mm] |
3.175 |
Valid Number of Laps |
2.5×2 |
Nut Length [mm] |
56 |
Maximum travel [mm] |
208 |
Screw Length (Lt) [mm] |
270 |
Screw Length (La) [mm] |
300 |
Screw Length (L) [mm] |
399 |
Weight [kg] |
2.5 |
Rated Dynamic Load [N] |
13000 |
Rated Static Load [N] |
24400 |
Maximum Speed [Fixed-Free] (min-1) |
2500 |
Drive Side Support Unit |
WBK20-01(Square) WBK20-11(Round) |
Reverse Drive Side |
WBK20S-01(Square) |

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