The third result of theoretical analysis of spindle bearings

The preload increases the temperature of the bearing and the stiffness will increase slightly, the fixed pressure preload, preload should increase with the rotational speed, the  marine crane bearing load and torque increases, positioning preload, the ambient temperature is high, the temperature rise of Vietnam, fixed pressure preload on the contrary.

  Oil mist lubrication, lubricating oil supply dose effect and viscosity and gas pressure bearing temperature, lubricating properties of synthetic lubricating oil is better than mineral oil, mineral oil contains a small amount of synthetic oil lubrication performance is best, can improve the speed performance of the precision spindle bearings the correct application of parameter selection.