Spindle bearing oil is a special lubricant for spindle bearings of precision machine tools and similar equipment. It plays an important role in ensuring the working accuracy and performance of the spindle and prolonging its service life. It is also called bearing oil.
Its main performance:
1. Suitable viscosity and good viscosity temperature characteristics
In order to make the machine tool spindle temperature not too high, the machine tool will be thermally deformed, affecting the machining accuracy or making the bearing poorly lubricated. The lubricating oil of the appropriate temperature should be selected according to the spindle bearing structure, the rotating speed and the bearing clearance, and it is required to have good viscosity-temperature characteristics. To prevent the change in viscosity due to excessive changes in the operating temperature of the spindle and the ambient temperature, which affects the lubrication performance.
2. Good lubricity
In order to maintain a uniform oil film between the main shaft and the bearing contact surface, and the impact film is not damaged when the spindle starts or stops moving, maintaining good lubrication performance reduces friction and friction heat, reduces spindle temperature rise, and ensures The effect of processing accuracy requires good lubrication performance.
3. Good oxidation resistance
When the machine tool spindle adopts the circulating lubrication method, the spindle bearing oil is required to be used for a long time without deterioration, so it is required to have good oxidation resistance.
4. Good rust resistance
Since the oil is inevitably mixed into the condensed water in the air or the machine coolant during the operation of the spindle lubrication system, the oil is required to have good rust resistance.
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