A power transmission shaft is to carry a steady 30 horsepower while rotating at 1000 rpm. Specify a suitable diameter for the solid circular shaft if it is to be made from AISI 1020 cold-drawn steel. Use Appendix A-2 for preferred size.

Precision Machining Technology (MindTap Course List)
2nd Edition
ISBN:9781285444543
Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
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Chapter3: Job Planning, Benchwork, And Layout
Section3.1: Understanding Drawings
Problem 9RQ: A dimension listed on an engineering drawing is known as the _______ _______.
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A power transmission shaft is to carry a steady 30 horsepower while
rotating at 1000 rpm. Specify a suitable diameter for the solid circular shaft if it is to
be made from AISI 1020 cold-drawn steel. Use Appendix A-2 for preferred size. 

A-2 Preferred basic sizes.
SI metric
Fractional (in.)
Decimal (in.)
(mm)
0.015 625 5
0.031 25 54
5.000
0.010
2.00
8.50
1.0
40
5.250
0.012
2.20
9.00
1.1
45
0.0625
5.500
0.016
2.40
9.50
1.2
50
0.093 75
5.750
0.020
2.60
10.00
1.4
55
0.1250
6.000
0.025
2.80
10.50
1.6
60
0.156 25
6.500
0.032
3.00
11.00
1.8
70
0.1875
7.000
0.040
3.20
11.50
2.0
80
0.2500
7.500
0.05
3.40
12.00
2.2
90
0.3125
8.000
0.06
3.60
12.50
2.5
100
0.3750
8.500
0.08
3.80
13.00
2.8
84
9
110
0.4375
9.000
0.10
4.00
13.50
3.0
120
0.5000
94
9.500
0.12
4.20
14.00
3.5
140
0.5625
10
10.000
0.16
4,40
14.50
4.0
160
0.6250
104
10.500
0.20
4.60
15.00
4.5
180
0.6875
11
11.000
0.24
4,80
15.50
5.0
200
0.7500
114
11.500
0.30
5.00
16.00
5.5
220
0.8750
12
12.000
0.40
5.20
16.50
6.
250
1.000
124
12.500
0.50
5.40
17.00
7
280
1.250
13
13.000
0.60
5,60
17.50
300
1.500
134
13.500
0.80
5.80
18.00
9.
350
1.750
14
14.000
1.00
6.00
18.50
10
400
2.000
144
14.500
1.20
6.50
19.00
11
450
24
2.250
15
15.000
1.40
7.00
19.50
12
500
24
2.500
154
15.500
1.60
7.50
20.00
14
550
2.750
16
16.000
1.80
8.00
16
600
3
3.000
164
16.500
18
700
34
34
3.250
17
17.000
20
800
3.500
174
17.500
22
900
34
3.750
18
18.000
25
1000
4
4.000
184
18.500
28
4.250
19
19.000
30
44
4.500
194
19.500
35
44
4.750
20
20.000
Note: The sizes highlighted in blue are the first choices. Use the sizes in black when a smaller
increment is needed.
1 H s ve
Transcribed Image Text:A-2 Preferred basic sizes. SI metric Fractional (in.) Decimal (in.) (mm) 0.015 625 5 0.031 25 54 5.000 0.010 2.00 8.50 1.0 40 5.250 0.012 2.20 9.00 1.1 45 0.0625 5.500 0.016 2.40 9.50 1.2 50 0.093 75 5.750 0.020 2.60 10.00 1.4 55 0.1250 6.000 0.025 2.80 10.50 1.6 60 0.156 25 6.500 0.032 3.00 11.00 1.8 70 0.1875 7.000 0.040 3.20 11.50 2.0 80 0.2500 7.500 0.05 3.40 12.00 2.2 90 0.3125 8.000 0.06 3.60 12.50 2.5 100 0.3750 8.500 0.08 3.80 13.00 2.8 84 9 110 0.4375 9.000 0.10 4.00 13.50 3.0 120 0.5000 94 9.500 0.12 4.20 14.00 3.5 140 0.5625 10 10.000 0.16 4,40 14.50 4.0 160 0.6250 104 10.500 0.20 4.60 15.00 4.5 180 0.6875 11 11.000 0.24 4,80 15.50 5.0 200 0.7500 114 11.500 0.30 5.00 16.00 5.5 220 0.8750 12 12.000 0.40 5.20 16.50 6. 250 1.000 124 12.500 0.50 5.40 17.00 7 280 1.250 13 13.000 0.60 5,60 17.50 300 1.500 134 13.500 0.80 5.80 18.00 9. 350 1.750 14 14.000 1.00 6.00 18.50 10 400 2.000 144 14.500 1.20 6.50 19.00 11 450 24 2.250 15 15.000 1.40 7.00 19.50 12 500 24 2.500 154 15.500 1.60 7.50 20.00 14 550 2.750 16 16.000 1.80 8.00 16 600 3 3.000 164 16.500 18 700 34 34 3.250 17 17.000 20 800 3.500 174 17.500 22 900 34 3.750 18 18.000 25 1000 4 4.000 184 18.500 28 4.250 19 19.000 30 44 4.500 194 19.500 35 44 4.750 20 20.000 Note: The sizes highlighted in blue are the first choices. Use the sizes in black when a smaller increment is needed. 1 H s ve
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