NSK FA Type Ball Screw Core Features
Finished Shaft End Machining: NSK completes both thread machining and shaft end machining, enabling mass production of standard products, significantly shortening delivery cycles and facilitating immediate installation and use.
Compact and Lightweight: Designed specifically for small FA (Factory Automation) equipment, maximizing space utilization and featuring a lightweight structure.
Preload Method: Typically employs P-preload, achieving smooth operation while maintaining high rigidity.
High Precision: Belongs to the precision-grade series, suitable for working environments requiring high alignment accuracy.
Compatibility: Typically used with NSK's BSBD series angular contact ball bearings (for supporting ball screws), providing a complete support solution.
FA type ball screws are mostly used in compact transmission systems with high precision requirements:
Small precision machinery: electronic component assembly machines, small machining centers.
Automation devices: precision worktables, measuring instruments, feeding mechanisms.
Item |
Specification |
Model No. |
W2517FA-3P-C5Z25 |
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 |
Z |
Circulation Method |
Pipe Circulation |
Nut Length [mm] |
90 |
Maximum travel [mm] |
1646 |
Screw Length (Lt) [mm] |
1750 |
Screw Length (La) [mm] |
1780 |
Screw Length (L) [mm] |
1913 |
Weight [kg] |
7.7 |
Rated Dynamic Load [N] |
8970 |
Rated Static Load [N] |
13100 |
Maximum Speed [Fixed-Free] (min-1) |
1090 |
Drive Side Support Unit |
WBK20-01A(Square) WBK20-11(Round) |
Reverse Drive Side Support Unit |
WBK20S-01(Square) |
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