Sankyo Seisakusho RE125-20L1-SU RollerDrive Zero Backlash Reducer Positioner

Sankyo Seisakusho’s RE125-20L1-SU RollerDrive Zero-Backlash Reducer Positioner is a high-precision rotary positioning device that uses Sankyo’s RollerDrive zero-backlash technology to deliver output motion that faithfully follows the input without play. Powered by a preload-adjusted roller gear cam and roller followers, the unit achieves backlash-free, rigid motion with direct motor input to the reducer’s input shaft and a turret-style output, making it well-suited for rotary positioning drives, welding positioners, and other FA equipment. RollerDrive devices are designed for long service life, high efficiency, and strong holding power, maintaining accuracy under varying loads. As part of Sankyo’s RollerDrive family, the RE125-20L1-SU embodies zero-backlash performance with precise, repeatable movement in both directions, enabling reliable operation in demanding automation tasks.