Polar Moment of Inertia (Hollow Circle)

mech-polar-inertia-hollow

Polar Moment of Inertia (Hollow Circle)

mechanical

Statics

J = \frac{\pi (d_o^4 - d_i^4)}{32}

Polar moment of inertia for hollow circular shaft

[
  {
    "symbol": "J",
    "name": "Polar Moment of Inertia",
    "unit": "m⁴",
    "siUnit": "m⁴",
    "imperialUnit": "in⁴"
  },
  {
    "symbol": "dₒ",
    "name": "Outer Diameter",
    "unit": "m",
    "siUnit": "m",
    "imperialUnit": "in"
  },
  {
    "symbol": "dᵢ",
    "name": "Inner Diameter",
    "unit": "m",
    "siUnit": "m",
    "imperialUnit": "in"
  }
]

J

polar, inertia, hollow, tube

false