THK EK, EK-L, BK, FK & FKT Fixed-Side Ball Screw Support Unit

THK EK, EK-L, BK, FK and FKT are fixed-side support units for ball screws. They provide rigid and stable support for the screw shaft. The range includes square and round support units for different installation requirements.

The EK and EK-L are square types, with EK-L designed for low shaft centers. BK is a standardized square support unit for general ball screws. FK and FKT are round types. The FKT uses a triple-row angular bearing structure for greater load resistance.

The fixed-side support units use preloaded angular bearings for high rigidity and low torque. They are compact and can be assembled with a ball screw without further machining. Available inner diameters range from 4 to 40 mm, depending on the model.