Design a compound gear train with a +120:1 ratio and diametral pitch of 5 teeth/inch. Assume ø= 20° and avoiding interference between pinion and gear; i.e., use Table 9-5a page 495. Draw a front-view using circle template or compass and a top-view using a ruler.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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TABLE 9-5a
Maximum Number
of Gear Teeth
To Avoid Interference
Between a 20° Full-Depth
Pinion and Full-Depth
Gears of Various Sizes
Number
Maximum
of Pinion
Gear
Тeeth
Тeeth
17
1309
16
101
15
45
14
26
13
16
Transcribed Image Text:TABLE 9-5a Maximum Number of Gear Teeth To Avoid Interference Between a 20° Full-Depth Pinion and Full-Depth Gears of Various Sizes Number Maximum of Pinion Gear Тeeth Тeeth 17 1309 16 101 15 45 14 26 13 16
Design a compound gear train with a +120:1 ratio and diametral pitch of 5
teeth/inch. Assume ø= 20° and avoiding interference between pinion and gear; i.e.,
use Table 9-5a page 495. Draw a front-view using circle template or compass and a
top-view using a ruler.
N2 = 15T
N3 = 30T
N4 = 15T
N5 = 45T
N6 = 16T
N7 = 64T
Ng = 16T
N9 = 80T
Answer:
d2 = 3"
d3 = 6"
d4 = 3"
ds = 9"
do = 3.2"
d7 = 12.8"
dg = 3.2"
d9 = 16"
Transcribed Image Text:Design a compound gear train with a +120:1 ratio and diametral pitch of 5 teeth/inch. Assume ø= 20° and avoiding interference between pinion and gear; i.e., use Table 9-5a page 495. Draw a front-view using circle template or compass and a top-view using a ruler. N2 = 15T N3 = 30T N4 = 15T N5 = 45T N6 = 16T N7 = 64T Ng = 16T N9 = 80T Answer: d2 = 3" d3 = 6" d4 = 3" ds = 9" do = 3.2" d7 = 12.8" dg = 3.2" d9 = 16"
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