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Bearing gear accuracy of three-leaf roots fan

来自: 章丘鸿广机械有限公司 浏览次数:514 2017-04-25From : Zhangqiu Hongguang Machinery Co., Ltd.

Bearing accuracy

Bearings, as wearing parts, are generally reluctant to increase their accuracy and increase product costs. Because low-precision bearings produce large vibration and friction, and as the assembly benchmark of the entire machine, it has a crucial impact on the performance of the whole machine and the life of other parts. The bearing accuracy of foreign fans is generally at least equivalent to China's Class C standard.


4.3 Gear accuracy


Gear clearance, motion accuracy, and tooth accuracy directly determine the uniformity and smoothness of the impeller meshing. The tooth surface roughness is one of the main sources of friction noise. Therefore, according to the national standard, the precision of the gear should be guaranteed to be above 7 level, and the gear processing and testing methods of general machinery processing plants are often not strong, so that the precision cannot meet the requirements. Therefore, the gear is processed well in cooperation with a professional gear processing factory.


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