For the selection of the bearing using the unit will change in accordance with the general equipment manufacturers of the original model with a rather large selection of note is appropriate, bearing improper selection. With the bearing and the bearing bore is generally used JS7 / BU 6, so not too tight with limited impact on the bearing clearance for higher speeds, I make a high temperature centrifugal fan, due to bearing and shelters coupling bolts tightened under normal circumstances do not use the torque wrench, in order to prevent loose, tighten the force is often too large, so that the one for the clearance smaller, thus causing the bearing heat caused by high temperatures;! or because the bearing clearance little Suining centrifugal fan cooling, leading to self-mountain-side bearing centrifugal fans can not automatically move with the axis thermal expansion, so that both the bearing axial load is too large Leshan impeller centrifugal fan, causing heat damage bearings. Therefore, the production of replacement bearings, especially high temperature high speed centrifugal fan bearings, pay attention to the selection of bearings: ① attention to the speed limit is appropriate Zigong centrifugal fan models, ③ to choose the original larger C3 clearance group bearings. Centrifugal fan is a very complex structure of the device, in the use of the process is in accordance with the needs of different effects for debugging and adjust to the different ways to make this work on the fan will produce different results. If you want to debug the largest state centrifugal fan can start in many ways. Total pressure centrifugal fan can start or step-down, but in the use of full pressure start when we must ensure that adequate capacity of the grid. Since the current full pressure start is five to seven times the rated current, if insufficient capacity of the grid, then we should use this form to start the buck. This is a very important aspect, if you use the full voltage starting grid is not sufficient under certain circumstances cause circuit failure. Ziyang high pressure centrifugal fan, nagorye blower (certified), centrifugal fan blower provided by the Shanxi nagorye limited liability company. Shanxi nagorye Blower Co., Ltd. (www.sxgfj.cn) is an industry leader in Shanxi Xinzhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In nagorye blower leadership with the staff warmly welcome all inquiries negotiations to create nagorye blower a better future.