a spur gear has a pitch diameter of 6 inches and a pitch of 8, how many teeth it has ?

a spur gear has a pitch diameter of 6 inches and a pitch of 8, how...
4. A gear is manufactured from SAE1045 hardened steel having pitch diameter D= 9.0 inches, having (13+12] 54 teeth, pressure angle 20°, which will operate 8 hours per day at 600 RPM with moderate shock 1oad. Design HP is 25 hp. a. Calculate the tooth load W (must show all steps with equations first) b. Calculate the minimum face width bw inches. Can use the handout on Spur Gear Design, along with accompanying data sheets.
6) [20 pts) Bending Stress in a Gear A steel spur pinion has a pitch of 6 teeth/in, 22 full-depth teeth with a cut profile, and a 20° pressure angle. The pinion runs at a speed of 1280 rev/min and transmits 15 hp to a 60-tooth gear. If the face width is 2 in., estimate the bending stress. Take the value of Lewis form factor, Y, from the table 14-2. The bending stress is kpsi.
Please help.
Thx
Part 2 (50 pts) A single-reduction spur gear system is as shown. The pinion "P" drives gear "G. Pinion"Pis driven at 1800 rpm with 1.5 hp Pinion "P" has a pitch diameter of 2 inches, and has 20 teeth. The gear "Ghas 120 teeth. All teeth have a pressure angle of 20, full-depth, hobbed profile, and a face width of 0.5 inches. All materials are steel. Determine: A) Minimum number of pinion teeth: Np,min This shows that...
For a pair of spur gears with a diametral pitch of 12, and a 20° degree pressure angle and with the number of teeth on the pinion 11 and the number of teeth on the gear 18, compute all the features of the gear teeth described below: (a) Pitch diameter for the gear, (b) Pitch diameter for the pinion (c) The circular pitch, (d) Addendum, (e) Dedendum, (f) Clearance, (g) Whole depth, (h) The tooth thickness (hint: based on circular...
4. A spur gear has 22 teeth of the 20° full depth involute form and a diametral pitch of 1.75. Compute the circular pitch, the addendum, the dedendum, the pitch circle diameter, the whole depth of a tooth, the clearance, outside diameter, and the base circle diameter.
A gear train of a 28 tooth pinion and a 60 tooth spur gear is designed to operate with the following: a 25 degree pressure angle, full-depth involute teeth, and a diametral pitch of 16 teeth/in. The standard center distance is increased by 0.125 inches. At what pressure angle do the gears operate now?
Component design
Spur gear analysis
A speed-reducer has 200 full-depth teeth, and the single reduction spur-gear gearset has 22 and 60 teeth. The diametral pitch is 4 teeth/in and the face width is 3-1/4 in. The pinion shaft speed is 1145 rpm. The life goal of 5 year 24 hours per day service is about 3(10 9) pinion revolutions. The absolute value of the pitch variation is such that the transmission accuracy level number is 9. The materials are 4340...
See Figure P12-1. The shaft rotating at 550 rpm carries a spur gear B having 96 teeth with a diametral pitch of 6. The teeth are of the 20%, full-depth, involute form. The gear receives 30 hp from a pinion directly above it. Compute the torque delivered to the shaft and the tangential and radial forces exerted on the shaft by the gear. Figure P12-1 Shaft carrying a gear and a V-belt drive 0
See Figure P12-1. The shaft rotating...
APTER 9 GEAR TRAINS tq-12 Design a compound, spur gear train for a ratio of 120:1 and diametral pitch of 5 Specify pitch diameters and numbers of teeth. Sketch the train to scale.
APTER 9 GEAR TRAINS tq-12 Design a compound, spur gear train for a ratio of 120:1 and diametral pitch of 5 Specify pitch diameters and numbers of teeth. Sketch the train to scale.
Problem 1 (50 points The planetary gear train shown in the figure uses spur gears with standard, involute teeth cut with a 20° pressure angle and a diametral pitch of 10 teeth/inch. Note that the contact between the gears is indicated by the pitch circles in the figure. a) Gear #2 has 18 teeth and gear #5 has 42 teeth. How many teeth must be on gear #4? b) If the arm (#3) is driven at 600 revolutions per minute...