The NSK W2503SA-2P-C5Z5 is an SA-type precision finished ball screw, specifically designed for machine tools. It features zero backlash and high precision, allowing direct installation of bearings, couplings, and locknuts, significantly simplifying the assembly process.
Key Features of the W2503SA-2P-C5Z5 Finished Ball Screw Shaft End:
Fully Machined Shaft End: Bearing mounting positions, threads, relief grooves, keyways, etc., are all precision machined.
Ready to Use: Bearings, couplings, and locknuts can be directly installed without additional machining.
High Precision Guarantee: Strict control of shaft end coaxiality and runout ensures transmission accuracy.
Pipe Circulation: Balls circulate through a guide tube, resulting in smooth operation and low noise.
Common Applications of W2503SA-2P-C5Z5 Precision Ball Screws
CNC Machine Tools
Industrial Robots
Precision Conveying Machinery
Electronic Manufacturing Equipment
Item |
Specification |
Model No. |
W2508FA-1PGX-C5Z50 |
Series |
Shaft End Finished Product |
Type |
SA |
Screw Shaft Diameter [mm] |
25 |
Lead [mm] |
5 |
Accuracy Grade |
C5 |
Ball Diameter [mm] |
3.175 |
Valid Number of Laps |
2.5×2 |
Nut Length [mm] |
55 |
Maximum travel [mm] |
159 |
Screw Length (Lt) [mm] |
220 |
Screw Length (La) [mm] |
250 |
Screw Length (L) [mm] |
349 |
Weight [kg] |
1.8 |
Rated Dynamic Load [N] |
12300 |
Rated Static Load [N] |
21800 |
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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