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squirrel cage blower for shop fan

11K views 15 replies 11 participants last post by  tcoop 
#1 ·
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
 
#5 ·
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
 
#8 ·
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..

Sam
 
#9 ·
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.
 
#10 ·
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??:confused:
 
#11 ·
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??:confused:
I will check the wiring and see what happens. Thanks
 
#14 ·
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 :thumbup:
 
#16 ·
I did check with a few local heating and air companies and none of the comapies had any motors, or so they say. One of the companies did say he would keep my number for the next time they replace a furnace. No call yet and CL didnt have anything at all i could use. The motor i got was 50 bucks, i am not not the best i could have gotten, but it owrks and moving some air. I have to keep soaping the belt to stop the squeaking, but it is running fine. Any suggestions for the belt squeak problem, it seems to be adjusted properly, but has an irritating squeak. Thanks for the reply.
 
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