MechanismsStudyGuide_Gears-20231027-172317

answer of these three boxes

What is the pressure angle for gear teeth?  Why would some gears have different pressure angles?

Two mating 20°, 8-pitch, spur gears have 14 and 42 teeth. Will they interfere?

Number of Teeth on Gears A, B, C, D, E and F are 40, 132, 50, 120, 50 and 116 respectively. Gear A rotates Clockwise and is connected to a motor spinning at 900 RPM. What is the RPM and rotational direction (Clockwise/Anticlockwise) of various gears, and the final output RPM and rotation direction on shaft of gear F? What is the overall speed reduction of the drive train?

A power of 25 KW is transmitted by a pair of spur gears. Pressure angle= 20, radial force generated is 220 daN,  the first gear speed is 600 rpm and the number of teeth is 33, the rotation ratio is 3 and the pitch diameter of the second gear  how much?

Please show all steps and solutions and Free body diagram

Compound Gear Train Design. Problem: Design a compound train for an exact train ratio of 180:1. Find a combination gears that will give that ratio. Note: Resketch the gear Train , label the number of teeth of each gear Output shaft N2 N5 Input shaft Oout Oin FIGURE A compound gear train

Examine the gear drive system shown below.  All the gears have a DP = 12.  The smallest gear is the primary driver gear and has 15 Teeth, RPM = 3600, and Torque = 2.2 N-m.  That small gear meshes with a 72-tooth gear which is connected to another gear that has 20 teeth.  That 20-tooth gear connects to the final driven gear that has 64 teeth. What is the TOTAL Gear Ratio for this system? What is the TOTAL Speed Ratio for this system? What is the Center to Center spacing of the first gear set? What is the Center to Center spacing of the second gear set? What is the final output RPM of the 64-tooth gear? What is the final output Torque supplied by the 64 tooth gear?

Industrial Maint.   What are the direction and speed of the driver gear (D1) in Figure 6-40 if the driven gear (D2) is a 2 in. gear, D1 is a 12 in. gear and D2 is rotating at 1248 rpm (CW)? see picture

The following data relate to two meshing gears: Velocity ratio =1:3;Module: 4mm; Pressure Angle: 20°; Center distance: 200 mm Determine the number of teeth and the base circle radius of the gear wheel.

What is the solution for this?

1. Calculate the power that can be transmitted safely by a pair of spur gears with the data given below. Calculate also the bending stresses induced in the two wheels when the pair transmits this power. Number of teeth in the pinion = 20 Number of teeth in the gear = 80 Module = 4 mm Width of teeth = 60 mm Tooth profile = 20° involute Allowable bending strength of the material = 200 MPa, for pinion = 160 MPa, for gear = 400 r.p.m. Speed of the pinion Service factor = 0.8 0.912 0.154- T Lewis form factor %3D 3 Velocity factor 3 + v

Q Explain the following terms with reference to Spur gears: ①Pitch circle 2 pressure angle 3 Circular Pitch ⑤Backlash ⑥ Base Circle 4 Addendum

Please show your detailed and correct solution to this problem. ASAP! Thank you!

A set of gears is used to reduce the speed from an electric motor to a shaft driving a grocery checkout conveyor, depicted below. The gear on the motor shaft is a 10-pitch pinion, has 18 teeth, and drives at 1200 rpm clockwise. The driven gear has 72 teeth. The motor has failed and is to be replaced with the only motor available, a 600 rpm motor with an 8-pitch pinion. Specify the set of commercially available 20⁰ spur gears, by number of teeth (N3and N4), that would result in the same conveyor speed and can be used without modification to the mounting (the center distance must not change). Find  the number of teeth N3 on the pinion (drive) gear (teeth): Find the number of teeth N4 on the driven gear (teeth):