THK BNS4040+700LC5 Ball Screw Spline

The THK BNS4040+700LC5 Ball Screw Spline is part of THK’s BNS Series. It is a heavy-load type designed for linear and rotary motion. The BNS Series combines a ball screw unit with a ball spline in one compact design. This model has a 40 mm screw shaft diameter and a 40 mm lead. The BNS4040 ball screw unit has a basic dynamic load rating of 21.4 kN and a basic static load rating of 49.7 kN. It has a 110 mm outer diameter, 140 mm flange diameter and 90 mm overall length.

The ball spline section has a basic dynamic load rating of 37.8 kN and a basic static load rating of 60.5 kN. It also provides a basic torque rating of 687 N·m. The specified model has a 700 mm overall shaft length and C5 accuracy. The BNS Series uses a no-preload design and has a DN value of 70,000.