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velocity ratioN3N45222222/22=1:124/24= 1:17323232/32=1:124/24= 1:19404040/40=1:124/24=1:1SpeedGear pair 1Actual velocityratioTheoreticalvelocity ratioN5N65241224/12=2:132/16=2:17443434/16= 17/832/16=2:19604242/22= 21/1132/16=2:1Overall speed ratio: ¿N1N6= 42.22B.Use the Morse PT-93 Catalog to select a Speed ReducerSelect a worm gear speed reducer for a bark conveyor at a paper mill. The speed reducer will be driven by a 1750-RPM electric motor directly connected by a coupling. The conveyor will
operate six hours per day and the head shaft speed will be 47 RPM. Calculations indicate that 2000-inch pounds of torque are needed at the conveyor head shaft.1.What is the service factor for the given application?2.What is the overall drive ratio?3.If a belt drive is used for the secondary reduction, what should be the ratio of the worm gear reducer? Belt drive ratio is 1.24.