THK EK, EK-L, BK, and FK Series Support Unit

Support units are dedicated bearing components used in combination with ball screws to support shaft ends and ensure stable, accurate operation. They are available in multiple series to suit different shaft-end specifications and installation requirements.

These support units are designed primarily for the fixed side of ball screw assemblies.

EK and FK Series
– Dedicated for Model BNK and Model SDA-VZ precision ball screws with finished shaft ends

EK-L Series
– Low shaft-center type designed for space-saving installations

BK Series
– Standardized support units suitable for general-purpose ball screws

The fixed-side support units in this group incorporate JIS Class 5 angular contact ball bearings with adjusted preload, providing high rigidity and precise axial positioning.