What are the commonly used terms for balancing machine?

The balancing machine is an instrument used to determine the unbalance of the rotor, and correct according to its measurement results to improve the mass distribution of the balanced rotor, so that the vibration of the journal or the force acting on the bearing is reduced to the specified range when the rotor is running. So what are the commonly used terms for balancing machine? Below let’s study together with JP balancing machine

1.Unbalance Amount: 

The unbalance amount in a certain plane of rotor regardless of the angle. It equals to the product of the unbalance amount and the distance of mass center to rotor’s axial line, in Unit g.mm or g.cm. 

2.Unbalance Phase: 

The unbalance angle under the polar coordinate system. 

3.Specific unbalance: 

The unbalance amount per kilogram. Displays in Unit g.mm/kg. It equals to the mass eccentricity for the static balance, in unit μm. 

4.Initial Unbalance: 

The unbalance amount of a rotor before it is balanced. 

5.Permissible Residual Unbalance (also called ”Unbalance Tolerance”):

The permitted residual unbalance on the rotor to ensure a normal working state.

6.Residual Unbalance:

The unbalance amount left on the rotor after correction. 

7.Correction Radius: 

The distance from the mass center of the correction plane to the rotor axial line, in Unit mm