NMB Technologies Standard Round Brush DC Motors are available with outer diameters from 24mm to 38.8mm and are an ideal solution for high-speed, low-life applications. The brush DC motors feature custom add-ons such as gearboxes and encoders in addition to plug-and-play solutions. These NMB Technologies standard round brush DC motors feature industry-standardized frame sizes, gearboxes, and encoders. The round brush DC motors are ideally used in door locks, automotive vending machines, healthcare, and beauty equipment.