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.
Dave
On 10/10/2016 7:41 PM, John Jeno wrote:
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).
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).
I've been using rubber sealed for 6
years. ��
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