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EXERCISE 7 Three shafts and four gears are used to form a gear train that will transmit 7.5 kW from the motor at A to a machine tool at F (Figure 4). (Bearings for the shafts are omitted in the sketch.) Knowing that the frequency of the motor is 30 Hz and that the allowable stress for each shaft is 60 MPa, determine the required diameter of: 150 mm (a) shaft AB. Ans dan: 15 mm 150 mm (b) shaft CD. Ans dep: 20.4 mm 60 mm 60 mm (c) shaft EF Ans dep: 27.6 mm

EXERCISE 7 Three shafts and four gears are used to form a gear train that will transmit 7.5 kW from the motor at A to a machine tool at F (Figure 4). (Bearings for the shafts are omitted in the sketch.) Knowing that the frequency of the motor is 30 Hz and that the allowable stress for each shaft is 60 MPa, determine the required diameter of: 150 mm (a) shaft AB. Ans dan: 15 mm 150 mm (b) shaft CD. Ans dep: 20.4 mm 60 mm 60 mm (c) shaft EF Ans dep: 27.6 mm

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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EXERCISE 7 Three shafts and four gears are used to form a gear train that will transmit 7.5 kW from the motor at A to a machine tool at F (Figure 4). (Bearings for the shafts are omitted in the sketch.) Knowing that the frequency of the motor is 30 Hz and that the allowable stress for each shaft is 60 MPa, determine the required diameter of: 150 mm (a) shaft AB. Ans dAB: 15 mm 150 mun (b) shaft CD. Ans dcp: 20.4 mm D. 60 mm 60 (c) shaft EF B. Ans dEF: 27.6 mm
Transcribed Image Text:EXERCISE 7 Three shafts and four gears are used to form a gear train that will transmit 7.5 kW from the motor at A to a machine tool at F (Figure 4). (Bearings for the shafts are omitted in the sketch.) Knowing that the frequency of the motor is 30 Hz and that the allowable stress for each shaft is 60 MPa, determine the required diameter of: 150 mm (a) shaft AB. Ans dAB: 15 mm 150 mun (b) shaft CD. Ans dcp: 20.4 mm D. 60 mm 60 (c) shaft EF B. Ans dEF: 27.6 mm
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