How to calculate residual unbalance from vibration data after balancing

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Hello peer,

Please explain/share literature on

1. how to calculate residual unbalance from vibration data after in situ balancing job ?

2. What 2.5 indicate in G2.5 ?

3. What is 2.5 mm/s in grade G2.5 ?

Tags: balancing, G2.5, unbalance, residual unbalance, balancing grade, in situ balancing

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https://www.hornusa.com/filead...ical_Info_-_2015.pdf

6/7/228:33 AM

Registered Member

Balance grade as defined in ISO 21940-11 is in mm/s. If you read the standard, it should answer your questions.

1. There used to be an Annex (if I recall correctly) in an old ISO 1940 that reminded one that it was not possible to relate vibration to balance grade.

2. 2.5 mm/s - See ISO 21940-11.

3. Question not well defined. Basicly the balacne grade, G, is the permissible mass eccentricity multiplied by the rotational speed (max) in rad/sec. More in ISO.

6/7/229:08 AM

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