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| Rifle bearing |
| ♦ What¡¯s Rifle bearing |
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| ♦ The principle of Rifle |
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1. The recycling slot pump(f1) the oil to make the oil circulation
2. The grooves outside the bearing lead the oil to circulate
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| ♦ Oil film test |
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| ♦ Temperature rise test |
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| ♦ Noise comparison |
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| ♦ Noise comparison |
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