patmichael@q.com
New Member
I need a tester to measure the HP output and amps drawn by fractional horsepower motors. These motors are for sewing machine collectors who do not want to put an after-market motor on their machines - they want the original rebuilt. I need a device that will allow me to see if the motor is producing the horsepower that is is supposed to, rotating at the right speed, and not drawing too many amps after I put new bearings and brushes in it (or before whenever I can). Sometimes motors just run sluggish - I need to be able to figure out why. I think sometimes the armature or stator are just defective - not enought to stop working but maybe enough to deliver reduced power. If I can figure out what it is I might be able to pull one from another motor to fix it.
I'm sure there must be an off-the-shelf device someplace but I am at a loss as to where to look or even what it would be called. The shafts are always 1/4" in diameter and the motor always 110v AC at around 1/10 to 1/20 HP so that should simplify things. I saw one on eBay several years ago and bid on it but lost. That one allowed for increasing the load on the shaft so it wasn't just spinning freely which would have been perfect, and maybe the only way to measure HP. Can anyone help me by at least pointing me in the right direction? A used device would be best as a new one would probably cost an arm and a leg.
Pat
I'm sure there must be an off-the-shelf device someplace but I am at a loss as to where to look or even what it would be called. The shafts are always 1/4" in diameter and the motor always 110v AC at around 1/10 to 1/20 HP so that should simplify things. I saw one on eBay several years ago and bid on it but lost. That one allowed for increasing the load on the shaft so it wasn't just spinning freely which would have been perfect, and maybe the only way to measure HP. Can anyone help me by at least pointing me in the right direction? A used device would be best as a new one would probably cost an arm and a leg.
Pat
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