1. Rotor Outline drawing. Spider cross-section next page. Weight is 4000 pounds.

2. New Rotor Spider Section Z-Z. Diametral area moment of inertia calculated on eng-tips link: http://www.eng-tips.com/viewthread.cfm?qid=274310 3.625”

3. End view of installed rotor

4. Side view of rotor

5. Model used for calculation L1=22 inch I1 = 135.6 inch^4 Mu1=12 lbf/inch L2=25 inch I2=953 inch^4 Mu2=69.6 lbf/inch L1 I1 mu1 L2 I2 mu2 Shaft Spider/Core LINE OF SYMMETRY (Mirror image) Mu1 Mu2 Mu1

6. Analysis. Double-click to open pdf. Plots on pages 8 and 9 Results: Slope at bearing due to weight of rotor is Slope = -0.00015 For bearing length of 4.5”, this is approx 0.7 mil Change in elevaation. Since clearance is 6 mils, this is approx 11% of Bearing clearance.