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# 3: Gear Train calculations: (25%) Consider the planetary gear train shown below. Find the outer diameter of the external ring assuming AGMA gears with a pitch of 12, pressure angle of 20deg., tooth numbers as: Nsun = 15, Nplanet = 8. Nring = 32, and the thickness of the external ring from the base of the tooth to outer diameter is 0.25 inc. Show all your work. P = 12 P = N/D = N/2R R = N/2P Ring gear => N = 32 Carrier Sun Gear => N = 15 Planet gear => N = 8

          # 3: Gear Train calculations: (25%) Consider the planetary gear train shown below. Find the outer diameter of the external ring assuming AGMA gears with a pitch of 12, pressure angle of 20deg., tooth numbers as: Nsun = 15, Nplanet = 8. Nring = 32, and the thickness of the external ring from the base of the tooth to outer diameter is 0.25 inc. Show all your work.

P = 12
P = N/D = N/2R
R = N/2P

Ring gear => N = 32
Carrier
Sun Gear => N = 15
Planet gear => N = 8

Show more…

# 3: Gear Train calculations: (25%) Consider the planetary gear train shown below. Find the outer diameter of the external ring assuming AGMA gears with a pitch of 12, pressure angle of 20deg., tooth numbers as: Nsun = 15, Nplanet = 8. Nring = 32, and the thickness of the external ring from the base of the tooth to outer diameter is 0.25 inc. Show all your work.

P = 12
P = N/D = N/2R
R = N/2P

Ring gear => N = 32
Carrier
Sun Gear => N = 15
Planet gear => N = 8

Added by Timothy B.

Engineering Mechanics: Statics and Dynamics

R. C. Hibbeler 14th Edition

Chapter 16

Instant Answer

Solved by Expert Adi S

11/18/2023

Step 1

First, we need to calculate the diametral pitch (Pd) of the gear train. Diametral pitch is defined as the number of teeth per inch of pitch diameter. It is calculated using the formula: Pd = N / D where N is the number of teeth and D is the pitch diameter. For Show more…

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Gear Train calculations: Consider the planetary gear train shown below. Find the outer diameter of the external ring assuming AGMA gears with a pitch of 12, pressure angle of 20 degrees, tooth numbers as: Nsun = 15, Nplanet = 8, Nring = 32, and the thickness of the external ring from the base of the tooth to outer diameter is 0.25 inch. Show all your work.

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