True/False
Indicate whether the
statement is true or false.
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1.
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The rectangular or square-shaped void created by key slots is filled with a
piece of metal key stock, also called a key.
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2.
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The key assists in positioning and holding the mounted component onto the
shaft.
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3.
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The only type of key made for a shaft is a square key.
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4.
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Key material should be harder than shaft material.
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5.
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Transition fits are those where the shaft and component bore are nearly the
same.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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6.
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This is a _____________.  a. | Keyless/Compression Bushing | c. | Quick Detachable Tapered
Bushing | b. | Split-Taper Bushing | d. | Taper-Lock Bushing |
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7.
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This is a _____________.  a. | Keyless/Compression Bushing | c. | Quick Detachable Tapered
Bushing | b. | Split-Taper Bushing | d. | Taper-Lock Bushing |
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8.
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This is a _____________.  a. | Keyless/Compression Bushing | c. | Quick Detachable Tapered
Bushing | b. | Split-Taper Bushing | d. | Taper-Lock Bushing |
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9.
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This is a _____________.  a. | Keyless/Compression Bushing | c. | Quick Detachable Tapered
Bushing | b. | Split-Taper Bushing | d. | Taper-Lock Bushing |
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Completion
Complete each
statement.
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10.
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Shafts are an integral part of any ___________ system.
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11.
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__________ are supported by the shaft and machine housing, and rotate within the
mechanism.
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12.
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In many applications a power transmission component is mounted to the shaft by a
________ bushing mechanism.
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13.
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The steel shafting commonly used on machines is selected to __________ the
loads, speeds, and application variables and yield a satisfactory service life.
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14.
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Standard shafting is reasonably __________ and straight.
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15.
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Certain applications require that a short length at the ends of the shaft be
turned to a different diameter for mounting bearings or other components. These necked down
ends are called “_______ ________”.
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16.
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A shaft ________ is the small curved portion at the step where diameters
change.
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17.
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An important factor that engineers must consider when selecting the proper shaft
size is that it will be subject to ___________ forces.
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18.
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All rotating shafts are subjected to _______ loading because the shaft is
revolving.
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19.
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Most shafts have a machined key slot or _________ cut into the end of the
shaft.
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20.
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Key material shoud be _______ than the shaft material.
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21.
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Whe two machined objects are mated, there will be a _________ between their
actual size and the dimensional tolerance limit.
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22.
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___________ fits are thise fits where the diameter of the hole in the component
to be mounted is smaller than the shaft diameter.
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23.
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_________ fits will have limits where the mating parts will always have some
clearance between them.
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24.
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Steel shafting expands or contracts with _____________ change.
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Matching
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a. | Keyless/Compression Bushings | c. | Quick Detachable Tapered
Bushing | b. | Split-Taper Bushing | d. | Taper-Lock Bushing |
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25.
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It is keyed to the shaft and keyed to the sheave hub which gives it a high
torsional load capacity.
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26.
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Has and 8 degree taper with no flange and is flush mounted to the sheave
hub.
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27.
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Has a 4 degree taper and a flange as part of the bushing used for mounting and
dismounting.
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28.
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Bushings that rely on compression and expansion of mating parts to hold the
unit in place.
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