Post by: usfan51473 on May 13, 2011, 08:34:20 PM
I want to know what the RG and Differential rating on balls mean
Post by: azguy on May 14, 2011, 05:16:30 AM
The difference of the radius of gyration of a bowling balls X axis (the weight block vertical) compared to the radius of gyration of the same balls Y or Z axis (the weight block horizontal). Differential is an indicator of a bowling balls track flare potential. Bowling balls with lower differentials are more stable, therefore generating less track flare potential. Bowling balls with higher differentials are unstable, therefore generating a much larger track flare potential. Also, differential is a guide to the internal versatility of a ball. It can indicate just how much of a length adjustment can be made through drilling. Balls with lower differential will allow only modest length adjustments whereas balls with higher differential may translate into a length window of up to 5-times that of low differential balls
Several ball sites have a Glossary. Hope this helps
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Post by: charlest on May 14, 2011, 01:05:19 PM
If you look at the topmost post of this, the MISCELLANEOUS forum, you will see a "sticky" post. It will stay there forever. It is the unofficial BR.com FAQ. It has answers for many basic bowling questions.
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