I have a Poseidon 135pfu with a Leeson motor. Today I heard a bunch grinding noise and the motor stopped turning. I can pick up a Dayton at Grainger. Does anyone know anything about this motor. I will wait if I have to for a Leeson to be delivered. Any recommendations. I do need to get back up and running real quick so I may have to take what I can get.
As always thanks for your help.I do have a call in to Sheldon as I know many ppl will say call him first.
As Craig noted motors will have a tag or name plate attached, usually via rivets. The key info you need is the "NEMA" frame number. Examples would be "184T" or "215" etc. There are literally 100's of different "frame numbers"
The frame number is an industry standard that specifies a long list of details, size, diameter of the shaft, end condition of the shaft, i.e. threaded, keyway, size of key, the mounting dimensions, the location of the junction box, rotation, etc. The list can be very long.
As long as your replacement motor has the same frame number as the motor that failed it should "bolt up" and be made to work.
WW Graingers is a huge vendor of Electric Motors, and Dayton is their "house brand" Dayton is fine. There are better quality motors made, but I'd have no qualms about using a Dayton. I have many Dayton motors (I own a machine shop, it's not uncommon for a single "machine" to have 4-5-6- motors, fans, coolant pumps, hydraulic pumps, axis motors, spindle motors, chip conveyors etc. I live in a sea of electric motors)
Modern induction motors are pretty simple, rugged and reliable devices. I would not rule out Ebay if I had the Nema Frame number.
From the description of your failure I suspect the bearing in your original motor failed. That's often a result of too much belt tension. Any thing you can do to move the pulley (assuming a belt drive) closer to the face of the motor (may not be possible, but see what you can do) will help. So will new belts, good alignment between the pulleys and good clean sheaves on both the driving and driven end.
Belt tension is a balancing act. You need enough to avoid slippage, and not too much which damages bearings.
Keep a close eye on a new belt as they need frequent adjustment during the initial break in period.
Gates Corp publishes a lot of good info on the care and feeding of belt drive systems.
Good luck,
Tobin