双驱动变频电机加回转支承结构,转动平稳; 安装拆卸方便、装配精度高、运行稳定、安全性能高; 旋转角度定位准确、噪音低 Dual drive variable frequency motor with slewing support structure for smooth rotation; Easy installation and disassembly, high assembly accuracy, stable operation, and high safety performance; Accurate rotation angle positioning and low noise