A compressor according to an exemplary embodiment of this disclosure, among other possible things includes, a rotor driven by a shaft and configured to compress air. A motor is drives the shaft. First and second journal bearings facilitate rotation of the shaft. The first journal bearing is located upstream from the motor, and the second journal bearing is located downstream from the motor. A thrust bearing also facilitates rotation of the shaft. The thrust bearing is downstream from the second journal bearing. A tie rod connects the shaft to a motor rotor shaft adjacent the first journal bearing. The tie rod includes an opening which is configured to communicate cooling air from the motor to the rotor. A method for cooling a compressor is also disclosed.