【 Auto cooling fan 】 Bearing classification
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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