Balancing a rotatable body in multiple planes using invertible balancing plugs

摘要

Multiple balancing plugs ( 114 ) preferably have a common length and a common offset center of gravity ( 130 ) in the length dimension for providing dual plane balancing of a rotatable body ( 100 ). The rotatable body ( 100 ) includes a plurality of balancing plug holes ( 112 a-f) for receipt of a balancing plug ( 114 ) as desired/required to address an imbalance associated with the rotatable body ( 100 ). One or more balancing plugs ( 114 ) may be disposed within the rotatable body ( 100 ) in a first orientation such that their respective centers of gravity ( 130 ) are disposed within a first plane ( 134 ). One or more balancing plugs ( 114 ) may be disposed within the rotatable body ( 100 ) in a second, opposite orientation such that their respective centers of gravity ( 130 ) are disposed within a second plane ( 138 ) that is spaced from the first plane ( 134 ).