In the centrifugal fan use, bearing high temperature is a common fault, the causes of high bearing temperatures are the following: ① poor lubrication Yangquan centrifugal fans, oil (fat) deterioration or lack of oil (fat); ② bearing assembly quality bad, preload is too large, resulting in the work space and small; ③ poor quality of the bearing itself, such as the original clearance does not comply, or roller or rings have defects; ④ fan bearing vibration withstand shock loads, etc; ⑤ bearing cooling poor or inadequate ventilation through water: Actually Yangquan centrifugal fan production, specifically, for centrifugal fan performance measurement Yangquan custom centrifugal fan, which can be divided into the following main purpose, as follows: (1) be familiar with and learn how to the proper use of fan performance measuring device to measure the performance of the fan; (2) to grasp the specific methods and experimental procedures; (3) Measurement of the performance of the fan, and then convert the results obtained into a characteristic curve, and converted into parameters. Yangquan centrifugal fan quotes, nagorye blower (certified), provided by the Shanxi Yangquan centrifugal fan blower 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.