Balancing

Any imbalances in the rotating grinding wheel will have a negative impact on the surface finish quality of the workpieces, the tool life of the grinding wheel, and the results produced on the machine. Only a properly balanced grinding wheel will achieve an optimal surface finish quality. In general, static balancing of the grinding wheel is sufficient if it has already been mounted on a flange.

To statically balance a grinding wheel, mount it on a polished shaft and place it on the balancing unit. Depending on how worn the grinding wheel is, it may be necessary to repeat the balance procedure.

Imbalance can also arise when mounting the grinding wheel on a flange and are eliminated by shifting the balancing weights accordingly.

The wheels can be balanced dynamically and continuously provided that the grinding machine is equipped with an automatic balancing system. Modern quality requirements for ground workpieces and increased circumferential speeds often require use of continuous dynamic balancing. This is especially true when the wheel thickness is greater than 1/6 of the diameter of the wheel.

In accordance with ISO standards, every grinding wheel must idle for at least one minute before grinding, and the circumferential speeds during this time must never exceed the recommendations of the wheel manufacturer. During the idle phase, the operator should pay special attention to the wheel.