After physical measurements, the engine jacket and an engine fan ring inner diameter dimension tolerances meet the drawing, coaxial problems after installation, no drawings concentricity requirements.
After physical measurement, the engine seal ring diameter dimensions and engine fan dimensions meet the requirements of the drawing tolerances, after installation, different shaft problems, no coaxial requirements on the drawing.
After physical measurement, the inner diameter of the engine seal ring and the size of the engine fan meet the tolerance requirements of the drawings. After installation, there are different shaft problems, and there is no coaxiality requirement on the drawings.<br>