An SAE 1050 Cold drawn steel is to be used for a square or rectangular key. The shaft is made of SAE 4340 OQT400 and the diameter is 2.5 inches. The torque transmitted by shaft is 15,000 lb-in. Design factor, N=2. The hub is made of SAE4340 OQT400and the length of hub is designed to be 3 inches. Which one of the following square keys can be used for this design? Note: How do I determine answer if the diameter is between two values? (a) 0.375 in x 0.375 in (b) 0.500 in x 0.500 in (c) 0.625 in x 0.625 in (d) 0.750 in x 0.750 in

Precision Machining Technology (MindTap Course List)
2nd Edition
ISBN:9781285444543
Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
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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An SAE 1050 Cold drawn steel is to be used for a square or rectangular key.  The shaft is made of SAE 4340 OQT400 and the diameter is 2.5 inches.  The torque transmitted by shaft is 15,000 lb-in. Design factor, N=2. The hub is made of SAE4340 OQT400and the  length of hub  is designed to be 3 inches. 

Which one of the following square keys can be used for this design?

Note: How do I determine answer if the diameter is between two values?

  (a)  0.375 in x 0.375 in 

  (b)  0.500 in x 0.500 in 

  (c)  0.625 in x 0.625 in

  (d)  0.750 in x 0.750 in

U.S. inch sizes
Naminal shalt dameter
Key dimensions
Ower (in) to-including (in) Width, W lin
Height, H(in)
0.3125
0.4375
0.09375
0.09375
0.4375
0.5625
0.1250
0.1250
0.5625
0.875
a.1875
Q.1875
0.875
1.250
0.2500
0.2600
1.250
1.375
0.3125
0.3125
1.375
1.75
0.375
0.375
1.75
2.25
0.500
a.500
2.25
2.75
0.625
0.625
2.75
3.25
0.750
0.750
3.25
3.75
0.875
O8/5
3.75
4.50
1.00
1.00
4,50
5.50
1.25
1.25
5.50
6.50
1.50
1.50
6.50
7.50
1.75
1.50
7.50
9.00
2.00
1.50
9.00
11.00
2.50
3.75
11.00
13.00
3.00
2.00
13.00
15,00
3.50
2.50
15.00
18.00
4.00
3.00
18.00
22.00
5.00
3.50
22.00
26.00
6.00
4.00
26.00
30.00
7.00
5.00
Saarce-US Sun. Regrinted tam ANSI Standard Bl7.1-1967 by permion at
Transcribed Image Text:U.S. inch sizes Naminal shalt dameter Key dimensions Ower (in) to-including (in) Width, W lin Height, H(in) 0.3125 0.4375 0.09375 0.09375 0.4375 0.5625 0.1250 0.1250 0.5625 0.875 a.1875 Q.1875 0.875 1.250 0.2500 0.2600 1.250 1.375 0.3125 0.3125 1.375 1.75 0.375 0.375 1.75 2.25 0.500 a.500 2.25 2.75 0.625 0.625 2.75 3.25 0.750 0.750 3.25 3.75 0.875 O8/5 3.75 4.50 1.00 1.00 4,50 5.50 1.25 1.25 5.50 6.50 1.50 1.50 6.50 7.50 1.75 1.50 7.50 9.00 2.00 1.50 9.00 11.00 2.50 3.75 11.00 13.00 3.00 2.00 13.00 15,00 3.50 2.50 15.00 18.00 4.00 3.00 18.00 22.00 5.00 3.50 22.00 26.00 6.00 4.00 26.00 30.00 7.00 5.00 Saarce-US Sun. Regrinted tam ANSI Standard Bl7.1-1967 by permion at
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