[GreenKeys] Model 19 Gear Set
Joe Clanin
macbax1 at gmail.com
Sat Apr 18 15:19:59 EDT 2020
Thank you for the information everyone! It is very helpful.
Best,
Joe
On Sat, Apr 18, 2020 at 2:15 PM Jim Haynes <jhhaynes at earthlink.net> wrote:
>
> > having trouble finding it in any list. The pinion is stamped 74505, the
> gear
> > is 74151.
> >
> 74151 and 74505 are for 60wpm (368 opm) with speed-governed motors. In
> the older line like Model 15 the speed governed motors are at a different
> speed from the sync motors and require different gear sets.
>
> Model 15 Gear Sets
>
> Set Gear Teeth Pinion Teeth OPM WPM Motor
> 80437 74913 30 74912 7 368 60 60 Hz Sync
> 96535 91287 24 91286 7 460 75 60 Hz Sync
>
> 84042 84019 25 84018 7 368 60 50 Hz Sync
> 107474 107460 20 107461 7 460 75 50 Hz Sync
>
> 84042 84019 25 84018 7 368 60 25 Hz Sync
> 107474 107460 20 106461 7 460 75 25 Hz Sync
>
> 80374 74151 35 74505 7 368 60 110 AC
> Series
> 96536 84106 32 84105 8 460 75 110 AC
> Series
>
> 80374 74151 35 74505 7 368 60 110 DC
> Shunt
> 96536 84106 32 84015 8 460 75 110 DC
> Shunt
>
> 80374 74151 35 74505 7 368 60 220 DC
> Shunt
> 96536 84106 32 84105 8 460 75 220 DC
> Shunt
>
> All governed motors used an 87.6 vps tuning fork for the speeds indicated.
> Note use of same gear set for 25 and 50 Hz sync motors, which means that
> the 50 Hz motor is four-pole and the 25 Hz motor is two pole, so they
> run at the same speed, 1500 RPM. The governed motors all run at 2100
> RPM.
>
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