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| Rotary Tech - General Rotary Engine related tech section.. Tech section for general Rotary Engine... This includes, building 12As, 13Bs, 20Bs, Renesis, etc... | 
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|  01-12-2011, 05:47 AM | #11 | 
| Porting Master Join Date: Mar 2009 Location: North Jersey, USA 
					Posts: 154
				Rep Power: 17  | 
			
			on my own personal 13B I tried roller bearings on the front and rear stationary gears over 6 years ago. there is pros and cons..
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