2. A helical gear has a normal diametral pitch of 12. a nor- mal pressure angle of 20°, 48 teeth, a face width of 1.50 in, and a helix angle of 45°. (a) If the gear transmits 2.50 hp at a speed of 1750 rpm, compute the tangential force, the axial force, and the radial force. (b) If the gear operates with a pinion having 16 teeth. compute the bending stress in the pinion teeth. The power comes from an electric motor, and the drive is to a centrifugal blower. Specify a quality number for the teeth. (c) Specify a suitable material for the pinion and the gear considering both strength and pitting resistance.

2. A helical gear has a normal diametral pitch of 12. a nor- mal pressure angle of 20°, 48 teeth, a face width of 1.50 in, and a helix angle of 45°. (a) If the gear transmits 2.50 hp at a speed of 1750 rpm, compute the tangential force, the axial force, and the radial force. (b) If the gear operates with a pinion having 16 teeth. compute the bending stress in the pinion teeth. The power comes from an electric motor, and the drive is to a centrifugal blower. Specify a quality number for the teeth. (c) Specify a suitable material for the pinion and the gear considering both strength and pitting resistance.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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