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Characteristics and applications of spindle bearing oil

Characteristics and applications of spindle bearing oil

2020-04-22

Spindle bearing oil is a special lubricating oil for precision machine tools and similar equipment. It plays a very important role in ensuring the working accuracy and performance of the spindle and extending its service life, also known as bearing oil. 

 

Its main performance:

1. Suitable viscosity and good viscosity-temperature characteristics

To make the machine tool spindle temperature is not too high and make the machine tool thermal deformation, affect the machining accuracy or make poor lubrication bearing, should according to the structure of the spindle bearing, speed and bearing clearance to choose appropriate temperature of lubricating oil and requires its good viscosity-temperature characteristics, prevent for spindle working temperature and environmental temperature change is big, the change of the viscosity is too large and influence its lubrication performance. 

 

2. Good lubricity

In order to maintain a uniform oil film between the spindle and bearing contact surface, and in the spindle start or stop movement of impact load when the oil film will not be damaged, to maintain good lubrication performance plays a role in reducing friction and friction heat, reducing spindle temperature rise, ensure the processing accuracy, good lubrication performance is required. 

 

3. Good oxidation resistance

Machine tool spindle in the use of circular lubrication, the spindle bearing oil is required to be used for a long time without deterioration, so it is required to have a good oxidation resistance. 

 

4. Good rust resistance

Because the oil will inevitably be mixed with the condensed water in the air or the coolant of the machine tool in the process of the main shaft lubrication system, the oil is required to have good rust resistance.


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