If the cooling fan is used for a long time, it needs to be maintained. If the oil-bearing cooling fan and the hydraulic cooling fan are not cleaned for a long time, it is easy to make noise and slow down the speed. Therefore, lubricating oil should be added to the fan. The maintenance free cooling fan can choose the double ball bearing.

Dongxingyue specializes in the production of cooling fans. Our bearings are double ball bearings, which are basically maintenance free. We have professional after-sales service. If you have any problems in the use process, you can contact us. We have DC fans, AC fans, centrifugal fans, blowers, cross flow fans, and various sizes for your choice.