NU2205EM bearing journal and bearing are outside the supply of certain pressure of bearing oil film separates completely, the formation of the oil film is not restricted by relative sliding velocity, under all kinds of speed (including the velocity is zero) have larger bearing capacity. Shaft stability is good, can meet the requirements of high precision rotation, small friction coefficient, high mechanical efficiency, long service life. Mainly used in large and medium-sized motor, locomotives, spindle, internal combustion engines, generators, gas turbines, reducer, rolling mill, vibrating screen and lifting transportation machinery, etc.