Bearing roller

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Bearing roller

Source: China Bearing Network Time: 2018-06-16

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Cylindrical and tapered rollers are divided into four levels: 0, I, II, and III; the grade of public service is downgraded. The demand for grade 0 and grade I rollers is high; it is not easy to produce;蠹 鲎咏 咨 咨 咨 咨 咨 拷 拷.
The needle roller is divided into three levels: 2, 3 and 5. The level of public service is downgraded; the value of the public service level is consistent with the demand value of the fluctuation of the batch diameter of the needle roller. The mass production is 3-stage needle roller.

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