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<div class="moz-cite-prefix">I have been using the contact sealed
bearings on rebuilds for years. The difference is so small it
won't matter in any practical way. <br>
<br>
Dave<br>
<br>
On 10/10/2016 7:41 PM, John Jeno wrote:<br>
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<div>I'd guess that the amperage draw between rubber sealed and
open bearings at full rpm is quite small. Be fun to test on one
motor (eliminating variables that way). </div>
<div id="AppleMailSignature">And I'd guess again that keeping
blades sharp will have a much greater impact to rpm in high
tough grasses. Think moment arm length difference between
bearings (~.3") and blades (many inches). </div>
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<div id="AppleMailSignature">I've been using rubber sealed for 6
years. ��<br>
<br>
Sent from my iPad</div>
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