THK BNFN Series Full-Ball Type Precision Ball Screw

The BNFN Double-nut Preload is a widely used full-ball type precision ball screw that employs a double-nut preload system.

By inserting a spacer between two combined ball screw nuts, axial backlash is eliminated, enabling high-precision and stable positioning performance for a broad range of industrial applications.

Key Features
– Precision positioning (ball screw)
– Preload
– Double nut preload
– Return-pipe type
– Double nut

Screw shaft diameter (mm)
55, 63, 70, 80, 100