Properties and characteristics of the main shaft bearing oil

Spindle bearing oil is a precision machine tool spindle bearing special lubricating oil and similar equipment, it is to ensure the accuracy of the spindle work composite bearing and use of performance, prolong its service life plays a very important role, is also called the bearing oil.
The main performance:
1, proper 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 sliding bearing, bearing lubrication, 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
To keep between shaft and bearing contact surface have a uniform oil film, and in the main shaft impact load of oil film start or stop the movement also not dent, keep good lubrication performance plays a reduce friction and friction heat, lowering the temperature rise of the main shaft, ensure the machining accuracy requirements has good lubrication performance.

3, good oxidation resistance
Machine tool spindle when using circulation lubrication method, for the main shaft bearing oil use for a long time without metamorphism has good oxidation resistance is required.

4, good rust resistance
Because the oil in the working process of the spindle lubrication system will inevitably mixed with condensed water or machine cooling fluid in the air, so the oil has good anti-rust property.