| 摘要 |
A treadmill includes an endless belt disposed in a base, a motor coupled to the endless belt for driving the endless belt and having a spindle, and a fan device secured to the spindle for being driven by the motor and having a number of blades for drawing air through the motor to dissipate a heat generated by the motor and for preventing the motor from being over-heated and damaged, and for increasing the working life of the motor. A wheel is secured to the spindle and secured to the fan device device for allowing the fan device to be driven by the motor via the wheel.
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