Compared with sliding bearing, deep groove ball bearing what advantages - bearing covers knowledge

1, general conditions, the efficiency of the rolling bearing and hydrodynamic lubrication bearing, but the mixed lubrication bearings are higher; 2, radial clearance is small, the centripetal angular contact bearings available preloaded eliminate pretightening clearance are available, and operation of high precision; 3, about the size of the diameter of axle, the width of the rolling bearing is smaller than sliding bearing, axial compact structure can make the machine; 4, most of the rolling bearing can be affected by the radial and axial load, so the bearing composite structure is simple; 5, less consumption of lubricant, facilitate sealing, easy maintenance; 6, don't need a useful nonferrous metals; 7, a high degree of standardization, mass production, the cost is low;