What lubricating oil does Roots blower use
	Roots blowers typically use the following types of lubricants:
	 
	1、 Main types
	1. 220 # medium load gear oil
	220 # medium load gear oil is one of the commonly used lubricating oils for Roots blowers. It has good lubrication performance and wear resistance, which can ensure the normal operation of the blower gears.
	2. Fully synthetic or semi synthetic high lubricating oil
	This type of lubricating oil has good high-temperature performance and oxidation stability, and can effectively deteriorate the oil at high temperatures.
	At the same time, they also have good lubrication and cooling effects, which can ensure the normal operation of fan gears and bearings.
	2、 Choose Suggestions
	1. Viscosity grade
	When choosing lubricating oil, it is important to pay attention to the viscosity grade of the oil. Generally, Roots blower manufacturers will provide recommended viscosity grades, such as ISO VG 100 or ISO VG 150, and users should follow the manufacturer's recommendations.
	2. Working environment temperature
	When choosing lubricants, one should also consider the temperature conditions of the working environment and choose lubricants that are suitable for the local climate.
	3. Oil change cycle
	Reasonably setting the oil change cycle based on the frequency of use and working environment of the fan, maintaining the cleanliness and efficiency of the lubricating oil, is the key to ensuring the stable operation of the equipment.
	3、 Precautions
	1. Avoid mixing
	Different types of lubricants should not be mixed to avoid chemical reactions that may affect the lubrication effect.
	2. Regular inspection
	Regularly check the oil level and quality of the lubricating oil to ensure that it is within the normal range.
	3. Timely replacement
	Once the lubricating oil is found to have deteriorated or been heavily contaminated, it should be replaced with new lubricating oil in a timely manner.
	In summary, when selecting lubricating oil for Roots blowers, factors such as viscosity grade, working environment temperature, and oil change cycle should be comprehensively considered to choose the appropriate type of lubricating oil and ensure that its quality and performance meet the requirements.