1 suitable viscosity and good viscosity temperature characteristics
In order to make the machine tool spindle temperature is not too high and the machine tool thermal deformation, affect the machining precision or the lubrication of slewing ring bearing, should according to the lubricating oil bearing structure, rotational speed and bearing clearance with suitable temperature and asking them to have good viscosity temperature characteristic, prevents the spindle operating temperature and the ambient temperature change, viscosity the change is too large and the impact of its lubrication performance.
2 good lubricity
In order to make the spindle and the slim ball bearing contact surfaces are maintained between oil film uniform, but also in the spindle start or stop moving when the impact load of oil film is not damaged, keep good lubrication properties play a reduced friction and frictional heat, reducing the temperature rise, ensuring the processing precision, has good lubricating performance.
Antioxidant activity of 3 good
Machine tool spindle in the circulating lubrication mode, requires long-term use without deterioration so has excellent oxidation resistance of spindle bearing oil.
4 good rust resistance
The oil in the lubrication system work process will inevitably mixed condensed water or machine tool coolant in the air, so the requirements of oil has good corrosion.
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