The rotor consists of shaft, impellers, balancing drum and thrust collar. The shaft is properly heat-treated and the impellers and balancing drum are shrunk-fit to the shaft. Generally, sleeves are placed between the impellers to prevent direct exposure of the shaft to gas. Two or three dimensional impellers are manufactured by applying a welding or diffusion bonding (welding) (DB) process, machining, or precision forging.


Rotar 11-08 --001

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