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17 Cards in this Set
- Front
- Back
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Manufacturers design _________to be the weak link in the mechanism |
Keys |
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What is the recommended width of a key relative to the shaft diameter |
1/4 the diameter of the shaft |
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What is the width and diameter of a 608 woodruff key |
3/16 inches wide (6 x 1/32) 1 inch in diameter (08 x 1/8) |
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Name the keys in figure 17 |
Woodruff Rectangular Gibb Pratt and whitney |
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To secure a pillow block bearing on a shaft, which way do you rotate the eccentric locking collar before you lock it |
Rotate it in the direction of shaft rotation |
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What is the purpose of a floating bearing on a line shaft |
It keeps the shaft aligned while allowing for shaft expansion |
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Where should the fixed bearing on a line shaft be located |
It should be next to the main drive |
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Which type of bushing do you remove if you remove two set-screws and install one of them into the third half-threaded hole to push it apart |
A taper lock bushing |
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Do split locking collars locate a shaft in a coupling radially or axially |
Axially |
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What are the two main stresses to which shafts are subjected |
Bending stress Torsional shear stress |
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How can you keep bending stresses on shafting to a minimum |
Keep the loads close to the bearings |
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What type of bearing installation accommodates shaft expansion on a line shaft |
Floating bearings |
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What is the principal hardening element in steel |
Carbon |
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Lead improves the __________of steel |
Machinability |
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What does AISI stand? |
The American iron and steel institute |
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What is the carbon content of the steel AISI 4340 |
0.40 carbon content |
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What is the tolerance of a shaft with a permitted size variation from 6.125 inches to 6.129 inches |
0.004 inches |
