7. Design a muff coupling for joining shafts transmitting 8 kW at 400 rpm. The shaft and the key are made of steel with 45 MPa and 80 MPa allowable stresses in shear and crushing, respectively. The material of the sleeve is CI, with allowable shear stress 10 MPa. Service factor KS =1.2.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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7. Design a muff coupling for joining shafts transmitting 8 kW at 400 rpm. The shaft and the key are made of steel with 45 MPa and 80 MPa allowable stresses in shear and crushing, respectively. The material of the sleeve is CI, with allowable shear stress 10 MPa. Service factor KS =1.2.
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