Scroll compressor having a deflectable bearing housing for shaft alignment

The present invention relates to scroll machines. More particularly, the present invention relates to a scroll compressor which has a main bearing housing with an elastic center which is designed to coincide with the drive shaft's nodal point corresponding to the first mode of vibration of the drive shaft. A compressor is driven by a drive shaft rotatably supported by a main bearing housing and a lower bearing housing. The main bearing housing positions a main bearing at or near a nodal point of the drive shaft during vibration by the drive shaft. The main bearing housing is designed such that the main bearing pivots during the vibration of the drive shaft in order to maintain surface contact between the bearing and the drive shaft to eliminate edge loading of the bearing.