Chapter 9, Problem 9.12P

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.

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.

A gear train with a ratio of -6:1 and a diametral pitch of 8 is used to reduce the speed from an electric motor to a shaft driving a grocery checkout conveyor. Grocery checkout conveyor Electric motor @, = 1800 rpm a. If the motor rotates at 1800 rpm clockwise, determine the speed and direction of the large gear. b. For a pressure angle of 20 deg, determine the minimum number of teeth for the pinion. Assume the gears are cut by a shaper (NOT a hob). c. Specify pitch diameters and numbers of teeth for the pinion and the gear for the most compact gear train.

A 20⁰ full depth involute gear, with 35 teeth and a diametral pitch of 8 is paired with a 12 tooth pinion. Find the gear ratio.

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.

A pair of helical gears are machined with a hob. The hob has a 20 degree pressure angle and machines circular pitch of 0.55 inch/tooth on a spur gear. Two gears are machined, the pinion has 18 teeth and the gear has 36 teeth. The measured transverse diametral pitch on the pinion is 5 inch/tooth. The pinion transmits 10 hp at 1,000 rpm. Calculate the center distance of the gearset, in inches

4. A pair of gear/pinion of 45 teeth and 15 teeth, respectively, with center distance of 40 cm, addendum at 0.725/p and dedendum at 1/p. The gear pressure angle is 20 degree. Compute for the diametral pitch in teeth per cm.

Solve this problem in spur gearsA 17-tooth pinion meshes with an 84-tooth gear. The full-depth involute gear teeth have 20° pressureangle and a diametral pitch of 32. Determine the base pitch and the contact ratio. Also,calculate theaddendum, dedendum, circular pitch, tooth thickness, and the base diameter for the pinion and gear. Ifthe center distance isincreased by 0.125 in., what are the new valuesfor thecontact ratio and thepressureangle with complete solution and write in hand writing thank you

OL Two involute gears of 20 pressure angie are in mesh. The nomber of teeth on pinion is 20 and the gear ratio is 2. If the pitch expressed in module is 5 mm and the pitch line speed is 1.2 m/s, assuming addendum as standard and equal to one module, find: 1 The angle turnad through by pinion when one pair of teeth is in mesh; and 2 The maximum veloctty of sitding