The bearing type of exhaust cooling fan is double ball bearing, and the fan’s speed to optimal noise and airflow levels, maximum speed is 10000 RPM that is to say the fan has a long lifespan, which is over 50,000 hours at 25 ℃ .
Electric current type is DC, double ball bearings rated at 67,000 hours allows the cross flow fans to be mounted flat or upright. Impedance protected motors have a high resistance to heat.