DESIGN OF MACHINERY
6th Edition
ISBN: 9781260113310
Author: Norton
Publisher: RENT MCG
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Chapter 9, Problem 9.11P
Design a compound, spur gear train for a ratio of 50:1 and diametral pitch of 8. Specify pitch diameters and numbers of teeth. Sketch the train to scale.
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Two straight-toothed bevel gears mesh with a shaft angle of 90° and a diametral pitch of 5. The pinion has 20 teeth, and the gear ratio is 2:1. The addendum and dedendum are the same as for 20 stub teeth. For the gear, determine the pitch radius, cone angle, outside diameter, cone distance, and face width.
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- A 21-tooth spur pinion mates with a 28-tooth gear. The diametral pitch is 3 teeth/in and the pressure angle is 20°. Make a drawing of the gears showing one tooth on each gear. Find and tabulate the following results: the addéndum, dedendum, clearance, circular pitch, tooth thick- ness, and base-circle diameters; the lengths of the arc of approach, recess, and action; and the base pitch and contact ratio.arrow_forwardThe following data is for two meshing gears Velocity ratio=0.5 Module =5 mm, Pressure angle =20° Centre distance = 250 mm Determine the number of teeth and the base circle radius of the gear wheel.arrow_forwardDesign a two-stage compound spur gear train for an overall ratio of approximately 17+ID:1. Specify tooth numbers for each gear in the train. ID=007arrow_forward
- 1. Given a gear of 32 teeth and 6 diametral pitch. Find the pitch diameter, outside diameter, tooth thickness, and the space width, given that the tooth proportions are standard 14 Brown and Sharpe. 2. A gearset has the following parameters: diametral pitch = 8, pressure angle = 20°, 19- tooth pinion meshed with 37-tooth gear. Find the gear ratio, circular pitch, base pitch, pitch diameters, center distance, addendum, dedendum, whole depth, clearance, and the outside diameters.arrow_forwardA 17-tooth pinion meshes with an 84-tooth gear. The full-depth involute gear teeth have 20°pressure angle and a diametral pitch of 32. Determine the base pitch and the contact ratio.Also,calculate the addendum, dedendum, circular pitch, tooth thickness, and the base diameterfor the pinion and gear. If the center distance is increased by 0.125 in., what are the newvaluesfor the contact ratio and the pressure angle.arrow_forwardA gearset has the following parameters: diametral pitch = 8, pressure angle = 20°, 19-tooth pinion meshed with 37-tooth gear. Find the gear ratio, circular pitch, base pitch, pitch diameters, center distance, addendum, dedendum, whole depth, clearance, and the outside diameters.arrow_forward
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