Two mating steel spur gears are 26 mm wide, and the tooth profiles have radii of...
Two mating steel spur gears are 26 mm wide, and the tooth
profiles have radii of curvature at the line of contact of 8.5 and
28.1 mm. A force of 320 N is transmitted between them. What is its
value of the maximum shear stress below the surface? Submit your
answer in MPa.
Homework Answers
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Two mating steel spur gears are 26 mm wide, and the tooth
profiles have radii of...
A pair of enclosed spur gears have z1 =20, z2 =80, m = 3 mm and...
A pair of enclosed spur gears have z1 =20, z2 =80, m = 3 mm and face width factor of ?d =1.0. The pinion rotates at n1 =970 rpm. The allowable contact stress of the pinion and gear are [?H1] = 700 MPa, [?H2] = 500 MPa, respectively. The load factor is K =1.5, zone factor is ZH =2.5, elastic coefficient is ZE =189.8 MPa1/2. Determine the power that can be transmitted by tooth surface contact strength analysis.
7) [30 pts] Factor of Safety for Contact Stress A steel spur pinion has 16 teeth...
7) [30 pts] Factor of Safety for Contact Stress A steel spur pinion has 16 teeth cut on the 20 full-depth system with a module of 8 mm and a face width of 90 mm. The pinion rotates at 150 rev/min and transmits 3 kW to the mating steel gear. This pinion is to mesh with a steel gear with a gear ratio of 4:1. The Brinell hardness of the teeth is 200, and the tangential load transmitted by the...
please answer 18.11 and 18.12 18.11 A steel ring with an outside diameter of 150 mm and an inside diameter of 100 mm...
please
answer 18.11 and 18.12
18.11 A steel ring with an outside diameter of 150 mm and an inside diameter of 100 mm is shrunk onto another steel ring with an inside diameter of 50 mm. An axial force of 56,54 kN is needed to push the rings apart. Calculate the pressure at the mating surface and the shrinkage allowance given that both rings are 20 mm thick and the coefficient of friction between the mating surfaces is 0,2. Using...
Question 8 , need help with part (a), (b), (c) values are highlighted Sandgrous e Co. has hired you as Junior Engineer. Your first task as engineer is to help in the design of an electri...
Question 8 , need help with part (a), (b), (c) values are
highlighted
Sandgrous e Co. has hired you as Junior Engineer. Your first task as engineer is to help in the design of an electrical hoist-winch capable to hoist V8 engines at constant sp design is show motor, located at A; a shaft passing thro points C and D; a shaft passing through the points D-E-F; two mating spur gears, locate windlass, located at G; and three bearings, located...
I. The countershaft shown in the Fig Q1 has two spur gears mounted on it with teeth cut wi a 20 pressure angle....
I. The countershaft shown in the Fig Q1 has two spur gears mounted on it with teeth cut wi a 20 pressure angle. The shaft (grooved) is to be made of cold-drawn AISI 1040 steel havin Sut 779 MPa and S,-593 MPa, an elongation of 19% and HB-262. You are asked to size the shaft for safe operation according to DE-Elliptic criterion by using a factor of safety of 2.5 and a reliability of 99 percent. The stress-concentration factors for...
1. The countershaft shown in the Fig QI has two spur gears mounted on it with teeth cut with a 20 pressure angle...
1. The countershaft shown in the Fig QI has two spur gears mounted on it with teeth cut with a 20 pressure angle. The shaft (grooved) is to be made of cold-drawn AISI 1040 steel having Sut= 779 MPa and S,-593 MPa, an elongation of 19% and HB-262. You are asked to size the shaft for safe operation according to DE-Eilliptic criterion by using a factor of safety of 2.5 and a reliability of 99 percent. The stress-concentration factors for...
The gears attached to the fixed-end steel shaft are subjected to the torques shown in the figure. If the shear modulus of elasticity is 150 GPa a determine the following: nd the shaft has a d...
The gears attached to the fixed-end steel shaft are subjected to the torques shown in the figure. If the shear modulus of elasticity is 150 GPa a determine the following: nd the shaft has a diameter of 14 mm, a. Sketch the torque diagram along the steel shaft. b. Determine the maximum shear stress at Tmax and specify location. c. Sketch the shear stress distribution along the radial line at location specified in (b). d. Determine the displacement of the...
You are the designer and you have been asked to design a speed reducer (gearbox) that will take p...
power = 3 kW
if need any more information please ask !!!
You are the designer and you have been asked to design a speed reducer (gearbox) that will take power from the shaft of an electric motor rotating at 1500 rpm and deliver it to a machine that is to operate at approximately at 200 rpm Assume that you have decided to use spur gears to transmit the power [A power equal to the last one digits of your...
7) [30 pts] Factor of Safety for Contact Stress A steel spur pinion has 16 teeth cut on the 20 full-depth system with a module of 8 mm and a face width of 90 mm. The pinion rotates at 150 rev/min and transmits 3 kW to the mating steel gear. This pinion is to mesh with a steel gear with a gear ratio of 4:1. The Brinell hardness of the teeth is 200, and the tangential load transmitted by the...
please
answer 18.11 and 18.12
18.11 A steel ring with an outside diameter of 150 mm and an inside diameter of 100 mm is shrunk onto another steel ring with an inside diameter of 50 mm. An axial force of 56,54 kN is needed to push the rings apart. Calculate the pressure at the mating surface and the shrinkage allowance given that both rings are 20 mm thick and the coefficient of friction between the mating surfaces is 0,2. Using...
Question 8 , need help with part (a), (b), (c) values are
highlighted
Sandgrous e Co. has hired you as Junior Engineer. Your first task as engineer is to help in the design of an electrical hoist-winch capable to hoist V8 engines at constant sp design is show motor, located at A; a shaft passing thro points C and D; a shaft passing through the points D-E-F; two mating spur gears, locate windlass, located at G; and three bearings, located...
I. The countershaft shown in the Fig Q1 has two spur gears mounted on it with teeth cut wi a 20 pressure angle. The shaft (grooved) is to be made of cold-drawn AISI 1040 steel havin Sut 779 MPa and S,-593 MPa, an elongation of 19% and HB-262. You are asked to size the shaft for safe operation according to DE-Elliptic criterion by using a factor of safety of 2.5 and a reliability of 99 percent. The stress-concentration factors for...
1. The countershaft shown in the Fig QI has two spur gears mounted on it with teeth cut with a 20 pressure angle. The shaft (grooved) is to be made of cold-drawn AISI 1040 steel having Sut= 779 MPa and S,-593 MPa, an elongation of 19% and HB-262. You are asked to size the shaft for safe operation according to DE-Eilliptic criterion by using a factor of safety of 2.5 and a reliability of 99 percent. The stress-concentration factors for...
The gears attached to the fixed-end steel shaft are subjected to the torques shown in the figure. If the shear modulus of elasticity is 150 GPa a determine the following: nd the shaft has a diameter of 14 mm, a. Sketch the torque diagram along the steel shaft. b. Determine the maximum shear stress at Tmax and specify location. c. Sketch the shear stress distribution along the radial line at location specified in (b). d. Determine the displacement of the...
power = 3 kW
if need any more information please ask !!!
You are the designer and you have been asked to design a speed reducer (gearbox) that will take power from the shaft of an electric motor rotating at 1500 rpm and deliver it to a machine that is to operate at approximately at 200 rpm Assume that you have decided to use spur gears to transmit the power [A power equal to the last one digits of your...
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