Thread: RPM of Fisher Price gearbox
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Unread 14-01-2009, 16:44
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Re: RPM of Fisher Price gearbox
I don't have numbers for this years FP motor but the gearbox is 124:1 according to the JVN design calculater. Past FP motors have spun at about 16k rpm so if you divide 16000 by 124 you get about 130 rpm if there is NO LOAD. With all them gears and friction in the gearbox I would estimate more like 110-120 rpm on the output side. Of course, you could always use a watch and count how many turns in 10 seconds and multiply by 6. Just put a popsicle stick in between the prongs and count away.
Bruce