Ametek Lamb 2 Stage 5.7'' 120 Volt Vacuum Motor #116472-29Ametek Lamb's two stage motor design delivers the sustained airflow and lift that demanding vacuum applications require and this 120 volt, 5. 7'' unit is a direct replacement that drops right into compatible machines. Two stage motor construction generates stronger suction compared to single stage designs, maintaining consistent performance under load. 5. 7'' diameter and 120 volt rating match the original factory specification for a clean, reliable