Parts, Machinery and Tools

NTN

Hollow Ball-Screw Unit
A hollow ball screw unit is developed for CVT application for next generation. Features of this product will be more than 70% conversion efficiency (rotation to Linear slide force) and 20% smaller nut diameter. This new unit has typical feather for light weight and compactness, especially it could eliminate one key-component “Deflector” of previous design, as a result, it obtains lighter weight and compactness design.This new unit will be used for pulley width change purpose of CVT, and contribute for good fuel economy. Additionally, it will be contributed lighter weight and compactness of entire CVT system.