![4. A gear is manufactured from SAE1045 hardened steel having pitch diameter D= 9.0 inches, having (13+12] 54 teeth, pressure](http://img.homeworklib.com/questions/5cbb1570-97be-11eb-a53f-9f4981068cb6.png?x-oss-process=image/resize,w_560)
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4. A gear is manufactured from SAE1045 hardened steel having pitch diameter D= 9.0 inches, having...
designs QIII) A 15-tooth, precision-made spur pinion is to drive a 25-tooth gear. A pitch of...
designs
QIII) A 15-tooth, precision-made spur pinion is to drive a 25-tooth gear. A pitch of 6 teeth/in has been selected with a 2.25 in face width. Also, the teeth are to be 25 full depth, with a ddendum of 1.35/ pa for a pinion speed of 1150 rpm, and 10 hp is to transmitted under steady load conditions. The material selected for both gears is a through-hardened steel of a hardness of 302 Bhn . Determined the actors of...
Component design Spur gear analysis A speed-reducer has 200 full-depth teeth, and the single reduction spur-gear...
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...
A speed reducer has 20° full-depth teeth with a diametral pitch of 4 teeth/in, a face...
A speed reducer has 20° full-depth teeth with a diametral pitch of 4 teeth/in, a face width of 3.25 inches, and with the pinion having 22 teeth and the gear having 60 teeth. The pinion is driven by a 40 HP motor rotating with a shaft speed of 1145 rpm. The pinion is designed to last for 5 years operating around the clock. The gears are manufactured using 4340 through-hardened grade 1 steel, both heat treated to 250 HB using...
12. [25 points] A grade-2 through-hardened steel pinion with BHN of 350 is driving a steel...
12. [25 points] A grade-2 through-hardened steel pinion with BHN of 350 is driving a steel gear of the same material and hardness. The diameteral pitch is 10, the number of teeth on pinion is 18, the face width is 0.95 inch, and the pressure angle of the full-depth teeth is 20 degrees The input (pinion) rpm is 2000 and the output rpm is 500. The gears transmit 5 horsepower. The gearbox precision corresponds to "commercial enclosed gear units". Determine...
3. A commercial enclosed gear drive consists of a 20 spur pinion having 16 teeth driving a 48-tooth gear. The pinion speed is 300 rev/min, the gear face width 2 in., and the diametral pitch 6 teeth/i...
3. A commercial enclosed gear drive consists of a 20 spur pinion having 16 teeth driving a 48-tooth gear. The pinion speed is 300 rev/min, the gear face width 2 in., and the diametral pitch 6 teeth/in. The gears are grade t steel, through-hardened at 200 Brinell, made to No. 6 quality standards, uncrowned, and are to be accurately and ngid mounted Assume a lion life ofi will transmitareliability of90%(KR 0.85), and use YN 1.355N 01:8 and Z 1. used...
A helical gear has a normal diametral pitch of 24, a normal pressure angle of 14 ½ o, 72 teeth, a...
A helical gear has a normal diametral pitch of 24, a normal pressure angle of 14 ½ o, 72 teeth, a face width of 0.25 in and helix angle of 45° The power comes from an electric motor, and the drive is to winch that will experience moderate shock. (a) If the gear transmits 0.50 HP at a speed of 3450 RPM, what would be the tangential force? (b) If the gear operates with a pinion having 16 teeth, what...
6) [20 pts) Bending Stress in a Gear A steel spur pinion has a pitch of...
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.
The accessory drive unit of a large aircraft engine involves an identical pair of 200 full-depth spur gears. The gears have 70 teeth and rotate together at 8000 rpm. The diametral pitch is 12 and...
The accessory drive unit of a large aircraft engine involves an identical pair of 200 full-depth spur gears. The gears have 70 teeth and rotate together at 8000 rpm. The diametral pitch is 12 and the face width 1.0 in. The gears are made of alloy steel, case-hardened to 62RC (680 Bhn). Although the case extends throughout the fillet, it is conservatively decided to use the core hardness of 500 Bhn for calculating fatigue strengths. The tooth profiles are finished...
There are two spur gears in mate (a pinion and gear) determine the minimum face width...
There are two spur gears in mate (a pinion and gear) determine the minimum face width based on the bending equations and the data below: (hint: use iterative approach) . Determine the face-width for the pinion (use bending equations) * Design/Safety Factor (SF) 2 · NP (teeth) = 20 Pressure angle (degrees) = 20 · n (rpms) = 1200 H (hp) 100 Ng (teeth) = 60 . Pd (teeth/in) 8 . Quality number (Qv) 11 Pinion is made of nitrided...
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...
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...
designs
QIII) A 15-tooth, precision-made spur pinion is to drive a 25-tooth gear. A pitch of 6 teeth/in has been selected with a 2.25 in face width. Also, the teeth are to be 25 full depth, with a ddendum of 1.35/ pa for a pinion speed of 1150 rpm, and 10 hp is to transmitted under steady load conditions. The material selected for both gears is a through-hardened steel of a hardness of 302 Bhn . Determined the actors of...
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...
A speed reducer has 20° full-depth teeth with a diametral pitch of 4 teeth/in, a face width of 3.25 inches, and with the pinion having 22 teeth and the gear having 60 teeth. The pinion is driven by a 40 HP motor rotating with a shaft speed of 1145 rpm. The pinion is designed to last for 5 years operating around the clock. The gears are manufactured using 4340 through-hardened grade 1 steel, both heat treated to 250 HB using...
12. [25 points] A grade-2 through-hardened steel pinion with BHN of 350 is driving a steel gear of the same material and hardness. The diameteral pitch is 10, the number of teeth on pinion is 18, the face width is 0.95 inch, and the pressure angle of the full-depth teeth is 20 degrees The input (pinion) rpm is 2000 and the output rpm is 500. The gears transmit 5 horsepower. The gearbox precision corresponds to "commercial enclosed gear units". Determine...
3. A commercial enclosed gear drive consists of a 20 spur pinion having 16 teeth driving a 48-tooth gear. The pinion speed is 300 rev/min, the gear face width 2 in., and the diametral pitch 6 teeth/in. The gears are grade t steel, through-hardened at 200 Brinell, made to No. 6 quality standards, uncrowned, and are to be accurately and ngid mounted Assume a lion life ofi will transmitareliability of90%(KR 0.85), and use YN 1.355N 01:8 and Z 1. used...
A helical gear has a normal diametral pitch of 24, a normal pressure angle of 14 ½ o, 72 teeth, a face width of 0.25 in and helix angle of 45° The power comes from an electric motor, and the drive is to winch that will experience moderate shock. (a) If the gear transmits 0.50 HP at a speed of 3450 RPM, what would be the tangential force? (b) If the gear operates with a pinion having 16 teeth, what...
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.
The accessory drive unit of a large aircraft engine involves an identical pair of 200 full-depth spur gears. The gears have 70 teeth and rotate together at 8000 rpm. The diametral pitch is 12 and the face width 1.0 in. The gears are made of alloy steel, case-hardened to 62RC (680 Bhn). Although the case extends throughout the fillet, it is conservatively decided to use the core hardness of 500 Bhn for calculating fatigue strengths. The tooth profiles are finished...
There are two spur gears in mate (a pinion and gear) determine the minimum face width based on the bending equations and the data below: (hint: use iterative approach) . Determine the face-width for the pinion (use bending equations) * Design/Safety Factor (SF) 2 · NP (teeth) = 20 Pressure angle (degrees) = 20 · n (rpms) = 1200 H (hp) 100 Ng (teeth) = 60 . Pd (teeth/in) 8 . Quality number (Qv) 11 Pinion is made of nitrided...
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...
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