DRIVING SHAFT OF TURBO COMPRESSOR

摘要

PURPOSE: A driving shaft of turbo compressor is provided to reduce error occurring in engagement of the driving shaft and a thrust bush. CONSTITUTION: A driving shaft(30) has a first impeller coupling part(31) on one end, a second impeller coupling part(33) on the other end and a rotor(32) on a periphery of a middle of a body thereof. A thrust bush(37), adjoining a thrust bearing to support to axial direction and rotate, is formed perpendicularly with the axial direction by casting integrally with the driving shaft. Rotating fault of impellers due to error on a shape of the thrust bush or erroneous coupling. Manufacturing cost is reduces and productivity is improved by reducing number of parts and simplifying manufacturing process.