Shafts and attachment Flashcards
How is set screw on a key sized
Set screw diameter is the same as width of key
How is a key on a shaft sized
key should be 1/4 diameter of shaft
key used when hub slides back and forth on shaft
pratt and whitney key
key used in light application
woodruff key
key use to transmit heavy power
gib head key
taper of gib head key
1/8 inch per foot
how is woodruff key size identified
W 32 - D 8
3 Function of helical spline
Act as a driver
Can mesh into another spline without clashing
Can produce thrust
Bushing recognizable by axial split through the barrel and flange. Keyed on shaft only
QD Bushing
Bushing recognizable by axial split through barrel with internal and external key
Split taper bushing
Bushing with threaded half holes
Taper lock bushing
2 factors that stress shaft
bending stress
torsional stress
Reasons to use hollow shafting
reduce weight with little strength loss
long center distances can be spanned
can conduct coolant
lead desired trait
machinability
copper desired trait
resistance to corrosion
