THK BNS Series Heavy Load Ball Screw/Spline

The THK BNS Series Heavy Load Type Precision Ball Screw/Spline combines a ball screw and ball spline in a single compact unit for linear and rotary motion. The hollow-shaft design provides efficient motion transmission while supporting high loads and torque in demanding applications.

The BNS Series is available in sizes from 16 to 50 mm, with screw shaft leads from 16 to 50 mm. The integrated ball spline provides high load capacity and torque ratings, while the ball screw and spline sections allow independent linear and rotary movement. The series has a DN value of 70,000 and is supplied without preload.