This is part of a Quadrant gearbox (model 2100129-2B090050000). It is a scalable, low-torque gearbox manufactured and distributed by Quadrant. It is designed for applications involving medium to light torque, including Robotics, Automation, and Material Handling, and other tasks requiring precision. It features an aluminum housing, steel tank cover, and a ratio ranging from 5:1 to 500:1. The gearbox also includes an anti-backlash for smoother starts/stops and higher torque capacity, as well as seals to protect against dust, dirt, and water. It is equipped with an oil-cooled motor and a mechanical speed limiter. It has several mounting options including on the side, horizontal, and vertical.