THK BNFN Series Full-Ball Type Precision Ball Screw (Double Nut Preload)
The THK BNFN Series is one of THK’s most common double nut preload ball screws, using a spacer between two combined ball screw nuts to eliminate backlash. It’s a return-pipe type nut, mounted using bolt holes drilled directly on the flange, making it straightforward to install.
It’s available in screw shaft diameters from 55mm to 100mm, covering the larger end of THK’s precision ball screw lineup for heavier duty positioning applications.
