High Durability Precision Ball Screw

Surface processing technology reduces wear. Maintenance-free for longer periods.

NSK developed first-of-a-kind surface processing technology to improve the surface of ball screw raceways. Achieved high resistance to wear for improved service life and longer maintenance intervals.

Press Release
High Durability Precision Ball Screw



Enhanced oil film formation prevents metal-on-metal contact thereby significantly improving wear resistance. This is especially effective under conditions in which it is difficult for an oil film to form, such as low-speed short-stroke machining work.


Maintenance-free for longer periods due to ball screw accuracy life being extended. Achieve highly reliable and stable operations.


Contributes by saving energy consumption in machines to reduce a ball screw friction torque up to 40%, especially in low speed operation by improving the ability of keeping oil film.


NSK developed first-of-a-kind surface processing technology forms tiny dimples in the surface and enhanced oil film formation.

Dynamic frictional torque before and after low speed test1 min-1rotation speed, oil lubrication

Result of small stroke wear test1.6 mm stroke length, grease lubrication

Relationship between dynamic frictional torque and rotation speedOil lubrication

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