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#32
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Re: 2005 FP Pinion
Here are a couple measurements on our 2005 Fisher Price Motor
13 teeth; 1/2" O.D. pinion Part ID# 74550-0642 Code: TD034701 Measured RPM*: 24,500 @ ~12V (voltage approx) 12,000RPM @ 6.0V -11,600RPM @ -6.0V (reverse direction) * Measured using R/C airplane hobby tach & transparent disc w/stripe Motor Resistance**: 0.069 - 0.074 ohms **Measured with 10A current source; 4 point measurement of 0.69-0.74 V while turning rotor between fingers Calculated stall current from above: 162 - 173A (12V/0.069ohms; 12V/0.074ohms) All these measurements agree well enough by those provided by Paul Copiola at http://www.chiefdelphi.com/forums/sh...ad.php?t=32442 -David |
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