Select suitable gears for the gear wheels and pinion's for a gearbox required to transmit 17.75 kW from a shaft rotating at 2550rpm. The desired output speed is approximately 11925 rpm. For space limitation and standardization reasons, a double step-up gearbox is requested with equal ratios.Use the material '817M40' Y$ = 20°$ = 20°0.8 mb = ma = mN, Number of teethb = 1.25 m120.335120.22960130.348270.243170.255300.26622140.35985150.37013160.379310.27610170.387570.28508180.395020.29327190.401790.30078200.407970.30769210.413630.31406220.418830.31997240.428060.33056260.436010.33979280.442940.34790300.449020.3551034380.459200.367310.467400.37727450.478460.39093500.484580.39860600.493910.41047750.503450.422831000.513210.435741500.523210.449303000.533480.46364Rack0.544060.47897Permissible bendingstress o, (MPa)MaterialTreatmentOuts (MPa)NylonTufnol65 (20 °C)2711031080M40540131080M40Induction hardened540117817M40772221817M40Induction hardened772183045M10494117045M10Case hardened494276Case hardened655M13849345Preferred standard gear teeth numbers.12131415161820222425283032343840455054606470727580849096100120140150180200220250

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Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Select suitable gears for the gear wheels and pinion's for a gearbox required to transmit 17.75 kW from a shaft rotating at 2550rpm. The desired output speed is approximately 11925 rpm. For space limitation and standardization reasons, a double step-up gearbox is requested with equal ratios.Use the material '817M40'

Y
$ = 20°
$ = 20°
0.8 m
b = m
a = m
N, Number of teeth
b = 1.25 m
12
0.33512
0.22960
13
0.34827
0.24317
0.25530
0.26622
14
0.35985
15
0.37013
16
0.37931
0.27610
17
0.38757
0.28508
18
0.39502
0.29327
19
0.40179
0.30078
20
0.40797
0.30769
21
0.41363
0.31406
22
0.41883
0.31997
24
0.42806
0.33056
26
0.43601
0.33979
28
0.44294
0.34790
30
0.44902
0.35510
34
38
0.45920
0.36731
0.46740
0.37727
45
0.47846
0.39093
50
0.48458
0.39860
60
0.49391
0.41047
75
0.50345
0.42283
100
0.51321
0.43574
150
0.52321
0.44930
300
0.53348
0.46364
Rack
0.54406
0.47897
Permissible bending
stress o, (MPa)
Material
Treatment
Outs (MPa)
Nylon
Tufnol
65 (20 °C)
27
110
31
080M40
540
131
080M40
Induction hardened
540
117
817M40
772
221
817M40
Induction hardened
772
183
045M10
494
117
045M10
Case hardened
494
276
Case hardened
655M13
849
345
Preferred standard gear teeth numbers.
12
13
14
15
16
18
20
22
24
25
28
30
32
34
38
40
45
50
54
60
64
70
72
75
80
84
90
96
100
120
140
150
180
200
220
250

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