| 摘要 |
A motorized pulley is disclosed herein. One embodiment of the pulley comprises a tube having a first end and a second end. A first end cap is located adjacent the first end of the tube, wherein the first end cap comprises at least one air hole. A motor is located within the tube, the motor comprises a rotor and a stator, wherein the rotor is connected to the tube. A first fan is operatively connected to the tube. A first air path extends from the at least one air hole to the first fan and exits at least one air hole, wherein the first air path contacts the motor.
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