A gear reduction unit uses the countershaft shown in the figure. Gear A receives power.to from another gear with the transmitted force FA applied at the 20° pressure angle asshown. The power is transmitted through the shaft and delivered through gear B through atransmitted force FB at the pressure angle shown.(a) Determine the force FB, assuming the shaft is running at a constant speed.(b) Find the bearing reaction forces, assuming the bearings act as simple supports.(c) Draw shear-force and bending-moment diagrams for the shaft. If needed, make one setfor the horizontal plane and another set for the vertical plane.(d) At the point of maximum bending moment, determine the bending stress and thetorsional shear stress.(e) At the point of maximum bending moment, determine the principal stresses and themaximum shear stress.406.400 mm31.750 mm dia.Gear A508.000-mm dia.FA== 1334.466 N20°355.600 mmFB228.600 mm20°Gear B203.200-mm dia.

Answered: Image /qna-images/answer/3f9e3df6-0774-45a7-8318-50cb6ba7f9e6.jpg

Answered: A gear reduction unit uses the…

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter11: Columns

Section: Chapter Questions

Problem 11.2.4P: Repeat Problem 11.2-3 assuming that R= 10 kN · m/rad and L = 2 m.

See similar textbooks

Similar questions

Need complete solutions asap
Two cqual involute gear wheels of 40 teeth each, 3 mm module and 20° pressures angleare in mesh. Determine the minimum addendum if 2 pairs of teeth are always in mesh.The gear wheels rotate at 750 r.p.m. and transmit 4.6 kW. Find the normal force at eachpair assuming equal direction of load between the pairs. Neglect friction.
Ex: The second shaft on a parallel-shaft 25-hp foundry crane speed reducer contains a helical gear with a pitch diameter of S.08 in. Helical gears transmit components of force in the tangential, radial, and axial directions. The components of the gear force transmitted to the second shaft are shown in Fig. (8) at point A. The bearing reactions at C and D, assuming simple- supports, are also shown. A ball bearing is to be selected for location C to accept the thrust, and a cylindrical roller bearing is to be utilized at location D. The life goal of the speed reducer is 10 kh, with a reliability factor for the ensemble of all four bearings (both shafts) to equal 1 (90% reliability) with light to moderate impact. (a) Select the roller bearing for location D. (b) Select the ball bearing (angular contact) for location C, assuming the inner ring rotates. *- 20 Fig (8)
The gear-reduction unit shown has a gear that is press fit onto a cylindrical sleeve that rotates around a stationary shaft. The helical gear transmits an axial thrust load T of 1000 N as shown in the figure. Tangential and radial loads (not shown) are also transmitted through the gear, producing radial ground reaction forces at the bearings of 3200 N for bearing A and 2400 N for bearing B. The desired life for each bearing is 100 kh at a speed of 180 rev/min with a 90 percent reliability. The first iteration of the shaft design indicates approximate diameters of 30 mm at A and at B. Select suitable tapered roller bearings. B
Spur gear train is used to transmit the power of 2kW from input gear A rotating at 120 rpm to output gear D through a compound gear BC. The number of teeth on the gear A, B, C and D are 16, 32, 12 and 18 respectively. Given: Module = 4mm, pressure angle=20° The tangential force acting on the gear B is N A D В
ANSWER ASAP The worm gear rotating at 1250 rpm drives a worm wheel and whose velocity ratio is 12 to 1. A driving motor with 12 hp is used to supply the worm with worm pitch gear diameter of 3.5 in. Find the tangential force on the gear.
A gear reduction unit uses the countershaft shown in the figure. Gear A receives power from another gear with the transmitted force FA applied at the 20 pressure angle as shown. The power is transmitted through the shaft and delivered through gear B through a transmitted force Fg at the pressure angle shown. For the steel countershaft shown below, assume the bearings have a maximum slope specification of 0.064" for good bearing life. Does the dia shown below meet the requirement? if not determine a suitable shaft diameter. 1.25-in da Gear A F₁-300- Gear B Sindia The minimum shaft diameter is in.
Solve correctly will upvote
5.4 Please help. Provide Free Body Diagram, labeled with appropriate quantities to better understand. Also solve. Thank you.
Ex: The second shaft on a parallel-shaft 25-hp foundry crane speed reducer contains a helical gear with a pitch diameter of 8.08 in. Helical gears transmit components of force in the tangential, radial, and axial directions. The components of the gear force transmitted to the second shaft are shown in Fig. (8) at point A. The bearing reactions at C and D, assuming simple- supports, are also shown. A ball bearing is to be selected for location C to 262 accept the thrust, and a cylindrical roller bearing is to be utilized at location D. The life goal of the speed reducer is 10 kh, with a reliability factor for the ensemble of all four bearings (both shafts) to equal1 (90% reliability) with light to moderate impact. (a) Select the roller bearing for location D. (b) Select the ball bearing (angular contact) for location C, assuming the inner ring rotates. 356.6 144 297.5 3 in 2915 4.04 in 106.6 595 144 250 Fig.(8) Table(1) Bearing Characteristics That May Influence the Selection of Bearing…
In the figure below, a motor with power 150kw and speed of 2500 rpm is connected to shaft 1(by coupling) in a clockwise direction. Shaft 2 is connected to shaft 1 by gears 1 and 2. If 30% of the power is consumed by the gear3 and 9% by the pulley and 61% by the sprocket, draw torque diagrams for both shafts. If the pressure angle of the gears is 20 degrees to the x-axis, Calculate the reaction forces of the bearings and draw the bending moment diagrams for both shafts according to the information below: Lengths: AB=90mm/BC=DGH=50mm/CD=HI=60mm/DE=IJ=80mm Diameters: dG1=dG2=47mm/ dG3=20mm/ d(pulley)=35mm/d(sprocket)=40mm Gears Gear2 Tew) shaftz Bearing Shaft Gear1 SProcket
Two gears are designed to mesh as shown. Gear 1 is driven by another gear that is not shown which induces a force, F, equal to 52 N as shown. Gear 1 has 78 teeth and a pitch diameter equal to 64 mm. If Gear 2 has 44 teeth, and the gears are to remain at constant speed while the tangent force F is applied, find the Value of the resisting torque that is applied to Gear 2.  Direction that the resisting torque should be applied. Explain youranswer. Note: Gears are not drawn to scale.

SEE MORE QUESTIONS

Recommended textbooks for you

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS