Component design
Spur gear analysis
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Component design
Spur gear analysis
A speed-reducer has 200 full-depth teeth, and the single reduction spur-gear...
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...
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...
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...
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...
Design Problem Design a speed reducer gear box that will take 1.5 kW power from an...
Design Problem Design a speed reducer gear box that will take 1.5 kW power from an electric motor rotating at 3000 rpm (clockwise) and deliver it to a machine which operates at 2 different speeds, 1000 rpm (clockwise) and 500 rpm (counter-clockwise). Use Spur Gears with 20° pressure angle and 5mm module. Gear box should be of smallest possible size. The gear shift mechanism is not the part of the design A 2-speed double-reduction speed reducer is shown in the...
(1) A pair of meshing spur gears having 20 degree full depth teeth and face widths...
(1) A pair of meshing spur gears having 20 degree full depth teeth and face widths of 2.5-in, a diametral pitch of 4 and both made of steel having a BHN of 400. The pinion is rotating at 600 pm, has 30 teeth and the velocity ratio is 2/3. Assume uniform power source with moderate shock, less rigid mounting with contact across the full face. Find the maximum horsepower that can be transmitted based on strength using the AGMA method....
9. AGMA Shigley 5th Ed. 14-27 A 17-tooth 20°-pressure angle spur pinion rotates at 1800 rev/min...
9. AGMA Shigley 5th Ed. 14-27 A 17-tooth 20°-pressure angle spur pinion rotates at 1800 rev/min and transmits 4 hp to a 52-tooth gear. The diametral pitch is 10, the face width is 1.25 in, the quality standard is No. 6, and the mounting is with exceptional rigidity. The pinion is steel, hardened to Brinell 240, and the gear is of No. 30 cast iron. Find the factor of safety based on surface fatigue strength if the life is to...
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...
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 C D 10.004-10.00 6.00 V-belt sheave Gear...
Gear Design- Data for problems A pair of steel full-depth, involute teeth, the pinion speed is...
Gear Design- Data for problems A pair of steel full-depth, involute teeth, the pinion speed is 1000 rpm. The pinion has 18 teeth and the gear has 36 teeth. The gears have a quality grade of A8, a design reliability of 99% with a factor of safety of 1.0. They are installed in a commercial enclosed gear unit. The pinion has a rim thick gears transmits an average of 10 hp. The gear pair has a P 8, a 20...
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...
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...
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...
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...
Design Problem Design a speed reducer gear box that will take 1.5 kW power from an electric motor rotating at 3000 rpm (clockwise) and deliver it to a machine which operates at 2 different speeds, 1000 rpm (clockwise) and 500 rpm (counter-clockwise). Use Spur Gears with 20° pressure angle and 5mm module. Gear box should be of smallest possible size. The gear shift mechanism is not the part of the design A 2-speed double-reduction speed reducer is shown in the...
(1) A pair of meshing spur gears having 20 degree full depth teeth and face widths of 2.5-in, a diametral pitch of 4 and both made of steel having a BHN of 400. The pinion is rotating at 600 pm, has 30 teeth and the velocity ratio is 2/3. Assume uniform power source with moderate shock, less rigid mounting with contact across the full face. Find the maximum horsepower that can be transmitted based on strength using the AGMA method....
9. AGMA Shigley 5th Ed. 14-27 A 17-tooth 20°-pressure angle spur pinion rotates at 1800 rev/min and transmits 4 hp to a 52-tooth gear. The diametral pitch is 10, the face width is 1.25 in, the quality standard is No. 6, and the mounting is with exceptional rigidity. The pinion is steel, hardened to Brinell 240, and the gear is of No. 30 cast iron. Find the factor of safety based on surface fatigue strength if the life is to...
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...
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 C D 10.004-10.00 6.00 V-belt sheave Gear...
Gear Design- Data for problems A pair of steel full-depth, involute teeth, the pinion speed is 1000 rpm. The pinion has 18 teeth and the gear has 36 teeth. The gears have a quality grade of A8, a design reliability of 99% with a factor of safety of 1.0. They are installed in a commercial enclosed gear unit. The pinion has a rim thick gears transmits an average of 10 hp. The gear pair has a P 8, a 20...
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