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How To Choose Diesel Generator Grease To Lubricate Rolling Bearings

Aug. 19, 2023

The lubrication methods of diesel generator bearings mainly include grease lubrication and oil lubrication. In order to make the bearings function well, first of all, it is necessary to choose a lubrication method suitable for the conditions of use and the purpose of use. If only lubrication is considered, the lubricity of oil lubrication is dominant. However, grease lubrication has the advantage of simplifying the structure around the bearing. Compare the advantages and disadvantages of grease lubrication and oil lubrication.


1. Selection of lubrication method.

The lubrication of rolling bearings is divided into oil lubrication and grease lubrication. When using, it should be selected according to the type, size and operating conditions of the bearing. Generally, oil lubrication is superior to grease lubrication. However, oil lubrication requires complex sealing devices and oil supply equipment, and grease lubrication can simplify the sealing of the bearing housing. Usually, grease lubrication is used for low speed and light load, oil lubrication is used for high speed and heavy load.


2, the choice of grease.

Grease is composed of lubricants and conditioners, and also contains a certain amount of peptizers and additives. Lubricant is the main body of lubricating function, mainly mineral oil, such as spindle oil, cylinder oil, etc. The conditioner has a certain lubricating effect in addition to the adjustment function. It is mainly fatty acid salts (soap base), calcium soap, sodium soap, etc., peptizer is used to improve the fusion state between soap base and oil body, additives such as graphite, molybdenum disulfide, etc., can improve the properties of grease.


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3. Grease filling amount.

The filling amount of grease in the bearing should not be too much. When the motor speed is very low and the sealing requirements are relatively strict, the bearing cavity can be filled. Generally, grease should be added once after the bearing runs for 1000~1500h, and the grease should be replaced after running for 2500~3000h. Different types of grease cannot be mixed. To replace the grease, the old grease must be cleaned.


Guangxi Dingbo Power Equipment Manufacturing Co., Ltd. was founded in 2006 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 9.5 million yuan. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Dingbo has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to sales@dieselgeneratortech.com.

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