spur- RW, unase squirrel-cage 1e auiuun, 1244 rev/min. The load is smooth, providing a reliability of 99.9 % at 109 revolutions of the pinion. Gearing space is meager. Use pinion materials to be Nitralloy 135M, grade 2 steel and nitrided through-hardened grade 1 steel material to keep the gear size small. The gears are heat-treated first then nitrided. Consider temperature factor is 1.1 for 250 OC.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q1
Design a 4:1 spur-gear reduction for a 59 kW, three-phase squirrel-cage induction motor running at
1244 rev/min. The load is smooth, providing a reliability of 99.9 % at 109 revolutions of the pinion.
Gearing space is meager. Use pinion materials to be Nitralloy 135M, grade 2 steel and nitrided
through-hardened grade 1 steel material to keep the gear size small. The gears are heat-treated first
then nitrided. Consider temperature factor is 1.1 for 250 0C.
Transcribed Image Text:Q1 Design a 4:1 spur-gear reduction for a 59 kW, three-phase squirrel-cage induction motor running at 1244 rev/min. The load is smooth, providing a reliability of 99.9 % at 109 revolutions of the pinion. Gearing space is meager. Use pinion materials to be Nitralloy 135M, grade 2 steel and nitrided through-hardened grade 1 steel material to keep the gear size small. The gears are heat-treated first then nitrided. Consider temperature factor is 1.1 for 250 0C.
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