σ = F / A
M = F · d
SF ≥ 1.5 ✓
τ = T·r / J
±0.05
i = z₁ / z₂ = 2
F
L
a
b
c
d
Ø40 H7
σ
ε
σy
UTS
A–A
M6×20
TR
⏮
⏭