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NTN bearing conflict and temperature rise reasons
Source: China Bearing Network Time: 2018-05-24
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The coefficient of motion conflict of rolling bearings; in addition to the bearing method; it also varies with other factors such as load, smoothness, and speed. Under normal operating conditions; the approximate conflict coefficient of each type of bearing is:
Deep groove ball bearings: 1.0~~1. 5; Centripetal thrust ball bearings: 1. 2~1. 8; Active self-aligning ball bearings: 0. 8~1. Cylindrical roller bearings: 1. 0~1. 5; Needle bearing: 2. 0~3. 0; Tapered roller bearing: 1. 7~~2. 5, Active spherical roller bearing: 2. 0~ ~2. 5; Thrust ball bearing: 1.0~1. 5; Thrust roller bearing: 2.0~~3. 0
The heat is balanced with the heat dissipation; the bearing temperature is stable. Normally; the temperature rises sharply at the beginning of the work; but it is safe and stable when it reaches the normal condition; the heat is declared according to the bearing; the heat capacity of the shaft and the bearing housing; the cooling area; the smooth oil quantity and the smoothing method The influence of ambient temperature and other reasons; the time to reach a stable state is different. If it is always stable, or can not reach the state of peace; it can only be judged as having some abnormality.
6220 bearing 6230M bearing temperature rise abnormal reason: bearing offset (due to the torque load or the device is not appropriate) clearance. ã± èž…è—è ¡ 嗷虿蛔悖 嗷虿蛔悖 嗷虿蛔悖 煳锘烊爰懊芊庾 煳锘烊爰懊芊庾 煳锘烊爰懊芊庾 煳锘烊爰懊芊庾 ( ( ( ( ( ( ( ( ( If necessary, remove the bearing for inspection.
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