Causes of corrosion of bearing products

Core Tip: The main causes of corrosion are as follows: 1. Some enterprises do not strictly follow the requirements of cleaning anti-rust regulations and oil seal anti-rust packaging in the process of producing bearings.
The main causes of corrosion are as follows:

    1. In the process of producing bearings, some enterprises did not strictly carry out anti-rust treatment on the bearing parts in the processing process and the finished bearing products in accordance with the requirements of cleaning anti-rust regulations and oil seal anti-rust packaging. If the ferrule has a long turnaround time during the turnaround, the outer ring of the outer ring is exposed to corrosive liquid or gas.

    2. The quality of anti-rust lubricating oil and cleaning kerosene used by some enterprises in production cannot meet the requirements of process technology.

    3. As the price of bearing steel drops and then falls, the bearing steel material gradually declines. For example, the content of non-metallic impurities in the steel is too high (the increase in sulfur content in the steel causes the corrosion resistance of the material itself to decrease), the metallographic structure deviation, and the like. The source of bearing steel used in production companies is more complicated, and the quality of steel is even more.

    4. Some enterprises have poor environmental conditions, high levels of harmful substances in the air, and too little turnover space, making it difficult to carry out effective anti-rust treatment. Coupled with the hot weather, production workers violated anti-rust procedures and other phenomena.

    5, some enterprises' anti-rust paper, nylon paper (bag) and plastic cylinder and other bearing packaging materials do not meet the requirements of rolling bearing oil seal anti-rust packaging is also one of the factors causing corrosion.

    6. The turning allowance and grinding allowance of the bearing ring of some enterprises are small, and the oxide scale and decarburization layer on the outer circle are not completely removed.

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Pump bearing maintenance

Core Tips: 1) The pump that is newly put into use must be replaced with grease (oil) after 100 hours of operation, and then replaced once every 500 hours. 2) Lubricating lubricated flow bearings, running 15
1) The pump that is newly put into use must be replaced with grease (oil) after 100 hours of operation, and then replaced once every 500 hours.

     2) Lubricating grease-lubricated flow bearings should be replaced after 1500 hours of operation. The amount of oil to be filled should not be too much or too little, because too much or too little grease will cause the bearing to heat up. 1/2~2/3 of the bearing chamber volume is suitable.

     3) For bearings lubricated with lubricating oil, the amount of oil should be added to the specified position.

     4) The container containing lubricating oil or grease should be clean and should be sealed properly. There should be no dust, iron filings and other debris to avoid damage to the bearing.

     5) Motor bearings generally use sodium-based grease, which is characterized by high temperature resistance (125 ° C), but is easily soluble in water, so it can not be used for lubrication of water pump bearings.

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