Page 262 - Machinery Component Maintenance
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244 Machinery Component Maintenance and Repair
Pr inc i Dal
Inertia his
Shaft Axis
.
Figure 6-3A. Concentric disc with static unbalance.
Principal
Inertia Axis Shaft Axis
Figure 6-3B. Eccentric disc, therefore static unbalance.
Principal
Inertia-Axis Shaft Axis
Figure 6-3C. Two discs of equal mass and identical static unbalance, aligned to give stati-
cally unbalanced assembly.
