How to avoid the lack of oil in the bearings of COLD MILL Motor?

1. Regular inspection and maintenance plan
Develop a reasonable inspection cycle: According to the working intensity and working environment of COLD MILL Motor, a scientific bearing inspection cycle should be developed. For example, for COLD MILL Motors that work continuously and have heavy loads, it is recommended to conduct a simple appearance inspection once a week and a detailed lubrication status inspection once a month; for motors with lighter working loads, the inspection cycle can be appropriately extended.
Detailed maintenance list: The maintenance list should include checking the amount, color, and texture of grease, checking the bearing seal, and checking whether the lubrication system is normal. Relevant information should be recorded for each inspection, such as the remaining amount of grease, whether there are signs of leakage, etc., in order to compare and track the changes in the lubrication status of the bearing.
2. Correct grease selection and filling amount
Choose the right grease: Choose grease according to the working environment of COLD MILL Motor (such as temperature, humidity, whether there are corrosive gases, etc.) and working requirements (such as speed, load, etc.). For example, in a high temperature environment, a high temperature resistant grease should be selected; in an environment with a risk of chemical corrosion, a grease with anti-corrosion properties should be used. Common types of grease include lithium-based grease and calcium-based grease. Lithium-based grease has good water resistance and mechanical stability and is suitable for a variety of working environments.
Determine the appropriate filling amount: The filling amount of grease should be moderate. Generally speaking, for rolling bearings, the filling amount is about 1/3 - 1/2 of the internal space of the bearing. Overfilling will cause grease leakage, increase stirring resistance, and generate excessive heat; underfilling will not provide sufficient lubrication. When filling grease, you can refer to the bearing manufacturer's recommendations or use professional grease filling tools to ensure the filling amount is accurate.
3. Optimize the lubrication system and seal design
Lubrication system improvement: For some large or important COLD MILL Motors, an automatic lubrication system can be considered. The automatic lubrication system can provide grease to the bearing at a preset time interval, pressure and flow rate to ensure the timeliness and accuracy of lubrication. At the same time, the lubrication system should have a good filtering function to prevent impurities from entering the bearing. For example, install a fine filter to filter out impurities such as metal debris and dust in the grease.
Strengthen the seal design: A good seal is the key to preventing grease leakage and impurities from entering the bearing. A combination of multiple sealing methods such as double lip seals and labyrinth seals can be used. Double lip seals can effectively prevent grease from flowing out and external impurities from entering, while labyrinth seals further enhance the sealing effect through complex channel structures. Regularly check the integrity and sealing performance of the seals. If the seals are found to be aging or damaged, they should be replaced in time.
4. Employee training and operating specifications
Train employees in the correct inspection method: Train employees responsible for COLD MILL Motor maintenance so that they can correctly identify the state of good bearing lubrication and signs of oil shortage. For example, through training, employees learn to listen to the sound of the bearing running to judge the lubrication condition. The normal sound is smooth, and there will be a sharp friction sound when there is oil shortage; learn to observe the state of the grease, including whether the color becomes black (it may be caused by the mixing of metal particles produced by wear), whether the texture becomes hard, etc.
Standardize the operating procedures: Develop strict operating procedures to ensure that the correct steps are followed during the start, stop and operation of the motor. For example, check the grease status before starting, avoid overloading during operation to cause excessive wear of the bearing and excessive consumption of grease, and properly clean and inspect the motor after stopping. Employees must strictly follow the operating procedures during the operation to prevent problems such as bearing oil shortage due to improper operation.