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Sleeve bearing 1. Advantages of using oil-bearing: a. Impact resistant to external forces, less damage caused during transportation; b.  The price is cheap (there is a big difference in price compared with ball bearings. 2.Disadvantages of using oil-bearing: a. Dust in the air will be sucked into...

Bearing types for mini cooling fan, small brushless motor and micro brushed motor In mechanical engineering, there are many types of bearings for mini DC cooling fan, AC/DC brushless motor and AC/DC brushed motor. But there are only three types of bearings used according to their basic operating ...

In order to ensure the service life of the mini cooling fan, the following matters should be noted： 1. Do not touch the blade or the power cord and wrap the cooling fan or pull the power cord. The axis and the power cord will be damaged. 2. Please avoid dust, water droplets and insects, which ma...

Working principle of AC cooling fan and DC cooling fan 1. Working  principle of AC cooling fan The  power supply of AC cooling fan is AC, and the power supply voltage is positive and negative. Unlike the DC cooling fan, which has a fixed power supply voltage, it must rely on circuit control to ma...

The classification of mini DC cooling fan 1. According to the working voltage of cooling fans: AC cooling fan, DC cooling fan 2. According to the driving motor of the cooling fan: brushless DC cooling fan, DC brush cooling fan, brushless AC fan. 3. According to the BEARING system: oil-bearing (SL...