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Old 11-15-2020, 02:26 PM
threepiece threepiece is offline
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Default Identify Baldor Motor No Data Plate

I got these two motors from the scrap yard, both missing data plates. I’m fairly sure they are 10 HP. Is there a way to confirm this? Does the gauge of the lead wires change with the HP?
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Old 11-15-2020, 03:48 PM
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They both look like they have "C" faces so measure the shaft diameter, the diameter of the
flange and the hole spacing. That will tell you what series the motor is, at least. You'll still
have to guess at the HP but you will at least narrow down the possibilities...
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Old 11-15-2020, 05:53 PM
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What is the amp draw?
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Old 11-15-2020, 07:18 PM
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The specifications for a given motor frame size can vary quite a bit.
Line voltage ,wire temperature rating and shaft speed.
I just had three motors of the same frame in last week
one was a 3/4 hp. one was a 2 hp and one was a three hp.

they were on an in feed deck a shaker table and a conveyor belt.
This machine reclaims slabs from a waste pile at an end of life sawmill site into a chipper and sorts out all the dross that is in the pile before the chipper sees the wood.
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Old 11-16-2020, 12:37 AM
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Quote:
Originally Posted by terry lingle View Post
...I just had three motors of the same frame in last week one was a 3/4 hp. one was a 2 hp and one was a three hp...
Were they all the same shaft size? I know that motors with different horsepower ratings can have the same frame size but I thought throwing in the shaft size would help narrow things down a bit. Or is the shaft size for a given frame always the same?
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Old 11-16-2020, 03:01 AM
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The frame size specifies the "standard" shaft size But if you want the manufacturers will match your requirements.
As an example of that a local mine was doing some core drilling and splitting core samples length wise 1/2 as retained control and the rest for assay/ analysis.
the 5 saws had 3 hp motors on them with a special shaft that drove a pulley to run the saw and a direct drive pump for water on the samples for cooling and dust control. the motors were under sized for the duty cycle and we were burning up a motor a week .
I contacted the saw manufacturer and was told that there was no larger motor available.
Baldor factory engineers supplied 5 Hp motors in the same frame with a 14 day delivery. Not cheap at $1000 US each vs $650 US Ea for the stock motors but fast service and a drop in fit made it worth it.
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Old 11-16-2020, 03:06 AM
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Yes they all had the same shaft dimensions and the same sized pulleys on them.
The builder had each section of the machine running at the same speed for constant product flow.

The frame size specifies the "standard" shaft size But if you want the manufacturers will match your requirements.

As an example of that a local mine was doing some core drilling and splitting core samples length wise 1/2 as retained control and the rest for assay/ analysis.
the 5 saws had 3 hp motors on them with a special shaft that drove a pulley to run the saw and a direct drive pump for water on the samples for cooling and dust control. the motors were under sized for the duty cycle and we were burning up a motor a week .
I contacted the saw manufacturer and was told that there was no larger motor available.
Baldor factory engineers supplied 5 Hp motors in the same frame with a 14 day delivery. Not cheap at $1000 US each vs $650 US Ea for the stock motors but fast service and a drop in fit made it worth it.
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Old 11-16-2020, 06:50 AM
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Default indentify Baldor motor

I seriously doubt they are a 10hp just by the physical size of the frame and shaft-I'd say around 3-5hp at the most..especially C-face in a rolled steel frame design. Yes the lead wire size does change with HP ratings but also don't let that be the sole determining factor, the new wire insulation types can fool you..these could also be intermittent duty compressor motors..lot of variables when you have no rating decal or part number to work with..is there any stamped numbers anywhere in the frame near the lead port or box?
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Old 11-16-2020, 04:22 PM
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Generally when we had warranty claims as the OEM using various motors, we had a tag only policy up to a certain number of motors, then they wanted to start seeing samples to evaluate the failures.

You may want to evaluate function before getting too deep in them, especially considering where you found them.

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Old 11-16-2020, 09:36 PM
threepiece threepiece is offline
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Quote:
Originally Posted by bunkclimber View Post
I seriously doubt they are a 10hp just by the physical size of the frame and shaft-I'd say around 3-5hp at the most..especially C-face in a rolled steel frame design.
Pictures can be deceiving. I’m sure you would not think this if you had it in hand, provided you are capable of handling 122 lbs.
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With the amount of energy that is being consumed I expect most people on earth should be living in Utopia. And now this?

It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

If you are not having fun then you are doing it wrong.
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