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Old 05-31-2013, 03:54 PM
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squirrel cage blower for shop fan

I just got my hands on a 15" squirrel cage blower with a motor. However, after it runs for about a minute it shuts down, I assume from heat. The info plate was removed from the motor so I have no idea what the motor is from.
My question is, does anyone know what type of motor I need to replace it with? I just want to make it into a good shop fan.

Thanks
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Old 05-31-2013, 05:17 PM
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you can pick up any motor with a welded on base, or if you have the saddle type, most electric motors have the same type of frame. try a half horse 1620 rpm.
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Old 05-31-2013, 05:20 PM
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its trying to pull too much air block off one side then try it, these fans are made to run in a closed box
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Old 05-31-2013, 06:44 PM
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shop fan

mine is from a old furnace,it will run allday with bothe ends open. you must have a bad motor.
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Old 06-01-2013, 09:18 AM
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Anyone that has working fans, can you please give any motor and cage specs that may be helpful to me locating another motor.
The motor I have doesnt have a capacitor on the outside, nor does it have a info plate, so any motor specs would be great.

Thanks
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Old 06-01-2013, 09:25 AM
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try this out they have a motor guide to help you find the right one or just take a look around!
Electric Motors - Grainger Industrial Supply
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Old 06-02-2013, 09:52 AM
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Quote:
Originally Posted by dstearns2 View Post
its trying to pull too much air block off one side then try it, these fans are made to run in a closed box
Tcoop,

If you haven't already tried this, block the lower 1/3 of the discharge port and try it again.

Russ
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Old 06-02-2013, 11:01 AM
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Check with your local furnace repair guy...he may have a motor or can identify where it came from..Normally the id tag on a furnace is one the outside of the box and when you remove the fan assy you lose the tag for it..May be cheaper to find another fan. Those fans will run all day with no restriction in the airflow..

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Old 06-05-2013, 12:58 PM
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ok tcoop, here's the skinny. i pulled my fan out of mothballs to give you this info. my cage is 12x13 with an adjustable slide damper. the motor is a 1/4 hp, 115 volt 1725 rpm at 4.6 amps. type sp. this motor is dated 1968, so i don't think the part number would help. i hope this helps.
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Old 06-05-2013, 04:07 PM
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Some time?

If the motor runs for a short time and then stops it might be a good time to check the wiring that you did. A freind had an industrial fan(squirel type not large)that was wired wrong 208 volts instead of 115 or vise versa and it was the very last thing to check but vola it runs like a champ. This may not be your problem but don't rule it out as motors will run with strange voltages at times and not blow up or die??
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Old 06-06-2013, 09:12 AM
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If the motor runs for a short time and then stops it might be a good time to check the wiring that you did. A freind had an industrial fan(squirel type not large)that was wired wrong 208 volts instead of 115 or vise versa and it was the very last thing to check but vola it runs like a champ. This may not be your problem but don't rule it out as motors will run with strange voltages at times and not blow up or die??
I will check the wiring and see what happens. Thanks
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Old 06-29-2013, 12:28 PM
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I do have a new motor that is for a squirrel cage fan, has a long shaft 1/2 in. Thick w/ a flat cut on it, 115 volt, 3 speed, think it a 1/2 HP, I'll check when I get home.
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Old 06-29-2013, 09:34 PM
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Thanks to everyone. I found a local electric motor shop and I ended up buying a 50.00 motor from them. So far it is running fine. Thanks to everyone for their input.
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Old 07-10-2013, 06:21 AM
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Too late since you already bought a motor, but I was going to say that you could check with a heating and air conditioning company around you to see if they had any squirrel cages with motors that they pulled out of old furnaces, or check CL to see if someone was selling any. You could have most likely gotten one cheaper than what you paid for the motor itself. But at least you are up and running now. Moving air is really needed for the hot humid days
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Old 07-10-2013, 08:34 AM
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Don't toss that old motor. It might be OK, just needs a new thermal switch. This could be the case especially if you didn't detect unusually high motor temps when it shuts down.
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