How to reduce gear wear and prolong gear life?


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How to reduce wear of spur gear?

Measures to reduce gear wear and improve the service life of gears the following measures can be taken. The material selection must be reasonable. First of all we must pass the quality control. According to the change law of the sliding coefficient of the two wheels during gear transmission, the sliding coefficient of the root of the cast steel bevel gear is greater than the sliding coefficient of the tooth top, and the sliding coefficient of the pinion tooth root is greater than the sliding coefficient of the large gear tooth root. In order to make the tooth root wear of the large and small reduction gears nearly equal, the pinion should be made of relatively hard materials and the hardness should be several tens HB higher than the large gear in terms of heat treatment. The pinion can also be heated along the tooth groove by high-frequency induction and surface quenched to increase the wear resistance. In the initial operation after replacing the new gear we usually only pay attention to whether the operation and sound of each part are normal. If they are basically normal they will be put into use. The running in and no-load tests are insufficient and the purpose of gear running in cannot be achieved.

What factors aggravate the wear of gears?

The operator did not lubricate according to the lubrication instruction table. According to the instructions, the oil cup of the transmission mechanism roller and bearing should be tightened once every 8h, the lubricating grease of the refined bevel gear should be replaced regularly. In fact the above lubrication period is very long, even some of them only add oil during the initial assembly, haven’t been added or replaced before. In addition some operators will leave media such as small wooden strips and mud stones between gear teeth after adding lubricating oil which will deteriorate the lubrication environment and aggravate gear wear.