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9-11 Sol Roll diameter D=4in Gear diameter D,=3in Roll load Ly =30lb/inx8in =240lb Idler Lz 24lb/inx8in=1921b Firstly,we do force analysis 水ROY 0 LY ROZ RAY LZ FZ FY Motion balance X-Axis M=M F2D,=LzD 1921b×4in F2= =2561b 3in F=Ftan20°=93.2lb Force system balance9-11 Sol. Roll diameter D  4in Gear diameter 2 D  3in Roll load 30 / 8 240 LY  lb in in  lb 24 / 8 192 LZ  lb in in  lb Firstly, we do force analysis Motion balance X-Axis M  M Force system balance 2 192 4 256 3 tan 20 93.2 Z Z Z Y Y F D L D lb in F lb in F F lb       
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