principal axis Bearing oil Characteristics and Application
Spindle bearing oil is a special lubricating oil for spindle bearings of precision machine tools and similar equipment. It plays an important role in ensuring the working accuracy and performance of spindle and prolonging its service life, also known as bearing oil.
Its main performance:
1. suitable viscosity and good viscosity temperature characteristic.
In order to cause the machine tool spindle temperature to be too high and cause the machine tool to undergo heat distortion, affect the machining accuracy or cause the lubrication of the bearing to be bad, the lubricating oil with suitable temperature should be selected according to the main shaft bearing structure, speed and bearing clearance, and it is required to have a good viscosity temperature ­.
2. good lubricity
In order to maintain a uniform oil film between the contact surfaces of the spindle and the bearing, the oil film will not be damaged when the main shaft starts or stops the impact load. The good lubrication performance will reduce friction and friction heat, reduce the spindle temperature rise and ­, ensure the machining accuracy, and require good lubrication performance.
3. good antioxidant activity
When the machine tool spindle adopts circular lubrication, it is required that the spindle bearing oil be used for a long time without deterioration, so it requires good oxidation resistance.
4. good rust resistance
Because the oil will inevitably mix with the condensed water or coolant of the machine in the working process of the main shaft lubrication system, it is required that the oil has good rust resistance. Bearing oil