• Second moment of area moment of inertiaCalculate the second moment of area and radius of gyration of common shapes about weak and strong axes
  • Cubic orientation of primary and shear stresses and principal stress cosine rotationCombine primary and shear stresses into equivalent and principal stresses & their cosines
  • Nucleus and electron shells of atomic elementFind, sort and reorganise the properties of nature's atomic elements with active periodic table
  • Formulas included in Engineering PrinciplesCalculate unknowns in principle engineering formulas: stress, moments, power, energy, capstans, fluids, etc.
  • Properties of a triangle with inscribed and circumscribed circlesCalculate the properties of triangles and triangular configurations including inscribed and circumscribed circles
Area Moment calculation1 Combined Stress calculation2 Elements calculation3 Engineering Principles calculation4 Trigonometry calculation5
Available Now 2ᴺᴰ Moment of Area 2ᴺᴰ Moment of Area+ Added Mass & Drag Areas & Volumes Balancing (rotary) Beam Strength Beam Strength+ Bearings (low friction) Bearings (plain) Bending Moments BiMetallic Strip Buoyancy Carbon Steel Catenary Catenary+ Cathodic Protection Centrifugal Force Colebrook & Fanning Column Buckling Combined Stress Co-ordinates Copper Alloys Electrical Current Elliptical Curves Engineering Basics Explosions Fans Fatigue Flange Gaskets Flanges Floors Fluid Forces Fluid Numbers Friction Galvanic Corrosion Gears Hardness Conversion HPHT Flexible Pipe Lift Rigging Logs & Trig Machining Tolerances Metal Properties Mode Shapes Ocean Waves Padeyes Partial Pressures Piling Pipe Flow Pipe Flow+ Pipe Strength Plastic Stress in Beams Plate Deflection Pressure Vessels Reel Capacity Resolution of Forces Screw Thread Machining Screw Threads Shafts Shock Loads Spring Coefficients Spring Strength Steel Beam Sizes Stress Concentration Table of the Elements Thermal Conductivity Trigonometry UniQon Upheaval Buckling Velocity & Acceleration Vessel Motions Vessel RAOs Vibration Damping Vortex Shedding Walls, Barriers & Tanks Weight Lifting Welding Wire Rope

Home » All Programs

Calculator Description
Balance Calculator v1
Balance calculates the magnitude(s) and position(s) of the balancing weight(s) that would be required to prevent resonance in a rotating disc or shaft

Balancing (Discs & Shafts)


Imbalance in a rotating body will generate an in-plane vibration that could cause serious damage if allowed to resonate (see Vibration Damping; Fig 2). Suitably positioned weight(s) will completely eliminate this vibration.

Disc or Wheel

A disc or wheel is considered to be a thin or flat plate, the plane of rotation of which passes through the middle of its insignificant thickness.

A balance weight (one only) is to be located at a suitable radial position in the middle of its thickness.


A shaft is a significantly thick plate or long beam; the plane of rotation of which is at 90° to its axis of rotation. Imbalance occurs not only radially but also longitudinally, generating a moment couple that together with a radial imbalance could cause serious damage if allowed to resonate.

The balance weights (two only) are located at suitable radial positions along its length.


The balance calculator has two calculation options:
'1-Plane' for thin discs
'2-Plane' for long shafts

Balance allows the user to enter the properties of up to 10 sources of imbalance (positive and negative) and will calculate the magnitude of the counterbalance weight(s) and where to locate it radially and angularly, and also longitudinally (for the 2-Plane calculation option).

For help using this calculator see Technical Help

Balance Calculator - Options


Calculates the magnitude and angular position of a single weight that would be required to balance a disc of negligible thickness (or length)

You enter: and the balance calculator will provide:
  • radius (position of balance weight)
  • mass₁₋₁₀ (unbalance)
  • radius₁₋₁₀ (unbalance)
  • angle₁₋₁₀ (unbalance)
  • mass (balance)
  • angle (balance)


Calculates the magnitude and angular positions of two weights that would be required to balance a shaft of significant thickness (or length)

You enter: and the balance calculator will provide:
  • width (between balance weights)
  • radiusᴬ (position of balance weight A)
  • radiusᴮ (position of balance weight B)
  • mass₁₋₁₀ (unbalance)
  • radius₁₋₁₀ (unbalance)
  • angle₁₋₁₀ (unbalance)
  • distance₁₋₁₀ (unbalance)
  • massᴬ (balance)
  • angleᴬ (balance)
  • massᴮ (balance)
  • angleᴮ (balance)

Check minimum system requirements

Price: 8.00

« Previous | Next »

We accept the following payment methods

Credit Cards

      Go to our store
CalQlata™ Copyright ©2011-2016 CalQlata info@calqlata.com Site Map Terms of website use Our Store