Stress analysis in in shaft
Below is shown a shaft in a gearbox and the forces in the gear:
Gear 3: $F_{Radial,y}$=-1000N, $F_{Tangential, z}$=2500, $F_{Axial,x}$=2000N
Gear 4: $F_{Radial,y}$=-5000N, $F_{Tangential,y}$=-7500N
The torque from the gears is transmissioned through the keys. The gears and the two bearings in A and B
are secured with retaining rings.
datum
z-
y
Bearing A
Bearing B
Gear 3
d3=240
Gear 4
d4=80
?
D5
6 20 30 450 20
60
190
X
?
The materialet of the shaft is unalloyed carbonsteel C35 and the fatigue strength is 40% of the ultimate
tensile strength. Safety factor is 1.5.
Calculate the diameters of the shaft.
