[GreenKeys] Motor 310140

[Jim Cooper]

Thanks Bruce ...  I kinda wondered when I saw that 
3450 rpm stamped on the case (there is a different 
speed/amperage stamped for 50Hz).  

That opens the question of what type of Teletype 
equipment would not require a motor with speed 
accuracy?   A local perforator?  I would think nothing 
that had to synch up with the baud rate ... 

On 1 Aug 2021 at 17:47, Bruce Gentry via GreenKeys wrote:

> This is not a synchronous motor. If
> it were, it would be 3600 RPM at 60
> cycles. It's a regular induction
> motor for applications where speed
> accuracy is not important. It will
> run a bit faster than 3450 when
> unloaded or lightly loaded. 
> 
>      Bruce Gentry, KA2IVY
> 
> On 8/1/21 16:28, Jim Cooper wrote:
> > Does anyone know what unit the
> > TTY 310140   FSN 6105 839 4608 synch motor
> > was used on?
> >
> > I've looked in all the parts bulletins I can find
> > and have not found it listed; it's similar to the
> > LMU used in Model 28s but a bit 'lighter' duty
> > apparently.    1/12th hp.  3450 rpm at 60 Hz.
> >
> > graphic
> >
> >
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