Pulley: in mechanics, a wheel that carries a flexible rope, cord, cable, chain, or Belt on its rim.
滑轮：力学上的一种装置，在边缘装有活动绳索、弦、缆、链条或带子的轮。
2
The electric cord transverse robot joint features that toothed belt pulley of the toothed belt pair is fixed on the output shaft of the servo motor and is integrated with the nut of nut-screw pair;
伺服电机的输出轴固定齿形带副的带齿皮带轮，齿形带副的皮带轮与螺母丝杆副的螺母一体；
3
The cord-pulley pair consists of a disc and several pieces of traction steel cord, and the disc is fixed onto the output shaft of the servo motor.