Re: [TCML] Flywheel Pulley on Treadmill Motor

[Tim Flood <tfloodrr@xxxxxxxxx>]

Hi David,

Removal of the balanced pulley should not effect the balance of the motor.
Some pulley mfg's. typically balance their product, especially when a
second part is added. Your motor may not need a fan for your use. If by
chance it does just add a small external fan.

Not seeing the motor/pulley and if it were mine I would first remove the
nut. Tap on the back side of the pulley with a soft-face hammer moving
around the circumference as you tap. If this does not work I would next use
a puller.

Hope this helps.

Tim Flood


On Wed, Jul 31, 2013 at 2:48 AM, Yurtle Turtle <yurtle_t@xxxxxxxxx> wrote:

> I have a similar motor and (functioning) controller, and am awaiting
> responses.
>
> My controller can be controlled by a big knob.
>
> I currently have a VFD AC motor, but options are always nice, as I've
> smoked two VFDs.
>
>
>
> ________________________________
>  From: David Rieben <drieben@xxxxxxx>
> To: "tesla@xxxxxxxxxx" <tesla@xxxxxxxxxx>
> Sent: Tuesday, July 30, 2013 9:40 PM
> Subject: [TCML] Flywheel Pulley on Treadmill Motor
>
>
> Hi all,
>
> I was hoping that I could dip into the collective knowledge of this group
> on my inquiry, as I've never
> dealt with this before. I have an old treadmill that finally bit the dust
> (mainly due to the electronic con-
> trols messing up). Since it's about 10 years old, I figured it wasn't
> worth the cost and/or effort that it
> would take to troubleshoot and fix it but I could not resist rescuing that
> nice 1.5 HP cont. duty, DC
> drive motor from the landfill. Like many treadmill duty motors, it has a
> nicely balanced weighted fly-
> wheel pulley on the drive end of the ~3/8" shaft and I was wondering
> what's the best way to remove this
> flywheel with minimal collateral damage to the motor and shaft that it's
> attached to? I'm wondering if the
> motor would run too hot even if the flywheel was successfully removed, as
> the inner side of the flywheel
> has impeller vains that seem to moving most of the air through the motor
> and I doubt that there are any
> impeller fan blades inside the motor housing, due to its relatively small
> size. In other word, I'm concerned
> that the motor is only designed to run with the weighted flywheel pulley
> in place. It looks as if the shaft
> end may be threaded and the flywheel pulley is simply screwed onto the
> shaft but I also wonder how
> much torque it would require to remove it and how one would go about
> locking down the shaft so the
> flywheel could be broken free from it? Of course I'm imagining being able
> to secure a rotory disc to the
> motor shaft for a possible variable speed ARSG and I had also thought of
> simply leaving the flywheel in
> place and drilling holes in it for passing through bolts into matching
> holes on the garolite rotory disc.
> However, this would be problematic due to the fanned out impeller vains on
> the inside, motor-facing
> side of the flywheel. Not that I have to have a ready made ARSG anytime
> soon, as I already have a
> complete one that's working fine in my current big SG driven coil, but I
> was just wondering how to
> go about this for possible future reference.
>
> Thanks for any advice,
> David Rieben
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