Power supply bearing is the friction part which is capable of bearing external force and vibration. So it is necessary
to add other alloy into normal material as casting parts to improve overall mechanical properties.
Besides, casting defects are not allowed, especially on machining.
Use EU material grade EN-GJL-300 gray casting iron, and add other alloy as a special material.
There is an eccentric size on it, which is difficult to machine, so it will be completed by precision horizontal milling
machine in one-stop processing.