Importance Of Machine Balancing

Balancing of Rotating Bodies

The balancing of rotating bodies is important to avoid vibration. Dynamic and Static Balancing in Heavy Industrial machinery such as generators and motors can cause catastrophic failure, as well as noise and discomfort. To help with balancing, it involves simply moving the center of gravity to the center of rotation. For systems to be completely balanced both the force and couple polygons should be closed.

What is Static Balancing?

Static balance occurs when the center of gravity of an object is on the axis of rotation. This allows the object to remain stationary, with the axis horizontal, without the application of any braking force. Static balance has no tendency to rotate due to the force of gravity.

What is Dynamic Balancing?            

Dynamic balancing is when the rotation does not produce any resultant centrifugal force or couple. The system will rotate without needing the application of any external force or couple, other than that required to support its weight. When a system or machine is unbalanced, to avoid stress being put upon the bearings, a counterbalancing weight is added. Dynamic balancing is a way to balance out machines by rotating parts quickly and then measuring the imbalance using electronic equipment. The imbalance calculated can then be added or subtracted from the weight until the vibration of the parts is reduced.

What is the difference between static balancing and dynamic balancing?

Static balance refers to the ability of a stationary on object to its balance. This happens when the objects center of gravity is on the axis of rotation. Whereas dynamic balance is the ability of an object to balance whilst in motion or when switching between positions.

For any form of balance to happen, the center of gravity must be aligned over the objects support base. The center of gravity refers to the part which is the center of an object weight. Balancing plays a very important part in machines. Balancing in machines helps to rotating bodies to avoid vibrations; vibration in machines can lead to failure. Common failure occurs in generators and heavy machinery, so undertaking in balancing can help to avoid machines from breaking down.

Balancing can also involve shifting the center of gravity towards the center of rotation. Dynamic balancing is when the rotating system doesn’t yield any other force or couple. Other than the force that is needed the system will rotate without the need for any additional external force or pressure to be applied.

Static balancing definition refers to the ability of a stationary object to its balance. The occurs when a parts center of gravity is on the axis of rotation. However, the dynamic balance definition is the ability of an object to balance whilst in motion or when switching between positions.

Undertaking in balancing whether it be static or dynamic can help to extend the service life, quality and accuracy of your machinery. Unbalanced parts can lead to your machine breaking down or worst of all catastrophic failure.


Why is balancing important?

Balance is key to all functional movement. It helps your postural equilibrium, muscular balance, joint dynamics, neuromuscular and stability. When you get middle aged, balance, stability and flexibility get harder to maintain. Balance training is important because balance is a part of everything we do.


Benefits of machine Balancing,

  • Increase quality of operations
  • Increase machine life
  • Minimize vibrations
  • Minimize noise
  • Minimize structural fatigue stresses
  • Minimize operator annoyance and fatigue
  • Increase bearings life
  • Increase sealing element life
  • Minimize power loss
  • Decrease maintenance
  • Smooth operation of machine
  • Cast saving in sense of spares, time, labor etc.