Xi'an slewing bearing 022.40.1250.002 wholesaler

Xi'an slewing bearing... wholesaler/ ' (3,3,3) - Dynamic pressure sliding bearings are the most widely used type of sliding bearings, including liquid (oil and non-oil lubricating media) and gas dynamic sliding bearings. There are two types of pressure lubrication. Oil-lubricated dynamic pressure bearings include single oil wedge (integral type), double oil wedges, multiple oil wedges (integral or tilting shoe type), stepped surface, etc., with different lubrication characteristics. Generally, it is required to produce a dynamic pressure effect during rotation, a small distance between the spindle and the bearing (high-precision machine tools require ~3), high stiffness, and low temperature rise, etc.
/ ' (3,3,3) - Hydrostatic bearings are sliding bearings lubricated using the principle of hydrostatic lubrication. The main shaft is supported by external pressure oil. At any speed (including starting and stopping), there is an oil film separating the friction surface of the journal and bearing. It has nothing to do with the rotation speed of the shaft and the viscosity of the oil. The friction pair is in a fluid lubrication state and does not matter. Metal contact occurs. Therefore, there is extremely low friction, and its friction coefficient is .3~. It can withstand load changes even when using low-viscosity liquids, water and hydraulic media.