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HANDBOOK OF MECHANICAL DESIGN 



WEIGHTS OF CYLINDRICAL PIECES 



EXAMPLE OF PROCEDURE 



Cast-iron Flywheel 



A. Weights per inch of length, from table: 

 32-in. diameter cylinder = 209.0 lb. 

 20-in. diameter cylinder = 81.5 lb. 



Difference = 127.5 lb. 

 Weight of element A = 127.5 X 6 = 765.0 lb. 



B. Weights per inch of length, from table: 

 20-in. diameter cylinder = 81.5 lb. 



7-in. diameter cylinder = 10.0 lb. 

 Difference = 71.5 lb. 

 Weight of element B = 71.5 X 2}4 = 178.8 lb. 



C. Weights per inch of length, from table: 

 7-in. diameter cylinder = 10.0 lb. 

 3-in. diameter cylinder = 1.8 lb. 



Difference = 8.2 lb. 

 Weight of element C = 8.2 X 6 = 49.2 lb. 

 Total weight of flywheel = 993.0 lb. 



WEIGHTS OF CYLINDRICAL PIECES, POUNDS PER INCH OF LENGTH 



