【 Auto cooling fan 】 Bearing classification
Auto cooling fan common bearing are: ball bearing, oil bearing, magnetic levitation bearing. Ball bearing ball bearing ( 球轴承) Change the way the bearing friction, the use of rolling friction, there are some among two hoop steel or steel columns, supplemented by some grease lubrication. The way is more effective in reducing the friction between the bearing surface phenomenon, effectively improve the service life of the fan bearing, and so will auto cooling fan radiator calorific value decreases, and prolong service life.
disadvantages brought by the automobile cooling fans is the process is more complex, lead to cost increase, but also bring higher noise. Oil-retaining bearing oil bearing ( 滑动轴承) ） Is the use of sliding friction sleeve bearing, using oil as a lubricant and drag reduction agent. Can be said to be in the market now zui common kind of bearing technology, due to low cost, simple manufacturing, many products including well-known brands are still continue to use.
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