Custom Precision CNC Machined Magnesium AZ31B Motor Housing & Rotor Hub Engineered specifically for weight-critical dynamic assemblies, this custom CNC machined Magnesium AZ31B motor endbell and stator housing provides an unmatched stiffness-to-weight ratio for unmanned aerial vehicles (UAVs), high-acceleration robotic joints, gimbal systems, and electric powertrain hardware. Machined from wrought AZ31B tooling plate and bar stock using multi-axis CNC turn-mill and 5-axis