R/C Tech Forums - View Single Post - Opinion: Bigger Spur or Bigger Pinion Gear
Old 08-01-2013, 12:26 AM
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narcotiks
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Originally Posted by bizkit1
my question is does it matter what gears you run to get final ratio? If you get to your ratio with a bigger/smaller pinion does it put more strain on the motor or do you go by temp of the motor?
To answer your question. No. The ratio is the ratio.
There will be no effective difference in rotatianal mass, as if you decrease the size of one gear and increase the other, the difference cancels out. Assuming the gear pitch was kept the same, and the mesh was optimal, the only effect would be WHERE the motor is in the car (further forward or backward in comparison to the original position). If you multipy the number of teeth on each gear by a constant, the gear ratio will remain the same.
Not sure why people seem to think that changing sizes will give you some other advantage than mass distribution.
Bizkit, you run whatever gears will fit in your car and give you your desired FDR.
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