There are several reasons for the heating of the centrifuge motor bearings, and careful analysis is required.
First, it may be due to overload or overload, it may be a current problem such as a cooling fan, or it may be due to the heat generated by mechanical friction, but the main question is whether the bearing is authentic, and some users set low prices for low prices. Bearings, resulting in bearing heating, hot, so that the bearing burned out and so on. Therefore, the first emphasis is on the purchase of authentic (imported) bearings. Such as: SKF bearings: domestically produced as long as a dozen yuan, and the original imported SKF is nearly one hundred yuan, the same brand, different origin, the quality is also different. The bearings used in the Jiawen high-speed centrifuge series are all imported SKF bearings.
Second, pay attention to sticking to mechanical lubrication and choose high-quality high-temperature lithium-based grease. The quality of lithium-based grease is also another main reason for bearing heating. In addition, you should check with your meticulous situation, assuming that mechanical friction will be accompanied by noise, and mechanical parts will have obvious wear. If you say that the bearing is loose, it should be a problem with the bearing. You need to change the bearing. It is recommended to purchase authentic imported bearings. The centrifuge is a high-speed device. High-speed requires good bearings. High-quality authentic bearings can ensure the long-term normal operation of the centrifuge and the service life of the centrifuge is as long as more than 10 years.
Third, whether the concentricity of the main shaft of the centrifuge is accurate. Under normal circumstances, people do not pay much attention to the concentricity. The tendency of the main shaft concentricity is very large, which easily constitutes bearing heating. This requires that the centrifuge motor production has strong technology and production capacity. In order to save production costs, some centrifuge manufacturers assemble the motor shaft and the motor stator by themselves, and they are not assembled synchronously with the motor manufacturer. Due to the lack of technical guidance, it is easy to produce spindle concentricity. Tilt to constitute bearing heat.
Of course, the main reason is analyzed here, and there are some reasons that the user needs to pay attention to the imbalance when using it. Long-term operation in an unbalanced state can also cause the bearing to heat up. This requires that the centrifuge has unbalanced protection measures. The other is to require users to have good usage habits and follow the manufacturer's instructions.
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