Page 103 - Fundamental of Engineering Design
P. 103
Example 1
◦ A shaft 50mm in diameter is carrying 370kW at 3600 rpm. A 12-mm square
key transmit the power to the hub. If the allowable compressive stress is 250
Mpa, what is the minimum length of a key required to support the
compressive load?
ANSWER L= 26mm
Example 2
◦ A shaft 50mm in diameter is carrying 370kW at 3600 rpm. A 12-mm square
key transmit the power to the hub. If the allowable shearing stress is 350
MPa, how long should the key be based on the shearing stress?
ANSWER L= 9.3mm
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