Ball Bearing Cooling Fan, Radiator Fan Heatsink
Ball bearing has changed the way of bearing friction, adopting rolling friction. There are some steel or steel columns among two hoop, supplementing some grease to lubrication.The way is more effective in reducing the friction between the bearing surface, effectively improving the service life of the fan bearing. Therefore, the calrific value of heat radiator is reduced and prolong service life. The shortcoming is that technology is more complex, leading the cost increased and the same time also bring higer work noise.