Hamilton Beach Home Motor Documents
#21
Senior Member
Join Date: Jul 2013
Posts: 476
NB: I shouldn't be allowed to do math. Don't believe any number I compute.
I read somewhere (an old manual, probably) that the handwheel should make contact with the edge of the motor pulley, not the center of it. Too much drag or something if you line it up with the center of the pulley. It makes sense intuitively but I can't exactly explain it, physically. (And I shouldn't try to, given my propensity to err.)
#23
Senior Member
Join Date: Jul 2013
Posts: 476
Yeah, I noticed that. I think the idea is to provide only as much friction as necessary to drive the wheel. So if the pulley is centered, there's more contact and more friction. I guess it's the same as the principle for belt tightness. The tighter the belt, the more force on the pulley. And friction is a force.
#24
Senior Member
Join Date: Jul 2013
Posts: 476
#27
Senior Member
Join Date: Jul 2013
Posts: 476
Wow, you have the stand!! I'd be scared to run that without clamping it down somehow. I'm too clumsy and might knock it over. That's a really nice brass "badge"/label with the greyhound on it. Is there an amperage rating on it?
#29
Senior Member
Join Date: Jul 2013
Posts: 476
Yeah, that cord is a bit scary looking. I didn't look closely at the plug -- I wonder if it was meant to plug into a block in a sewing machine case. What seems odd to me is that the motor is badged "New Home Sewing Machine", yet it has the multi-purpose stand on it.
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