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Old 01-08-2009, 09:55 PM   #1
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Default Inside the Neu Motor

Here is my Neu 1512/2D/F motor which I purchased in March 2008. It was getting a lot of slop in the front bearing so I decided to open it up. Here are some pictures of the parts inside the motor. Rotor, spacers, bearings, etc. The rear bearing is flanged and front is not. Rear bearing 5x11x5 flanged, front bearing 5x11x4. As you can see the front bearing was covered in crud and if you look at the picture closely you can see a small ridge forming on the bearing from the force of the shaft pushing on it, almost looks like a flange as well. You can see all the spacers Neu uses to get the rotor centered just right (hand built). I was really surprised by how small the rotor is, amazing the power this thing puts out.


All the parts.


Endbell


Rotor




Dirty bearings


Front (left) and Rear (right) bearings
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Old 01-08-2009, 10:04 PM   #2
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Looks like a bonded rotor instead of sintered. Just an observation but I would have though otherwise considering the advantages of a sintered rotor.
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Old 01-08-2009, 10:29 PM   #3
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Quote:
Originally Posted by foolio View Post
Looks like a bonded rotor instead of sintered. Just an observation but I would have though otherwise considering the advantages of a sintered rotor.
Doesn't look at all like a bonded rotor. Look closer and you will set of four arc segments of Neodymium magnet attached to a central part of the rotor and wrapped in carbon fiber.
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Old 01-08-2009, 10:49 PM   #4
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Thanks for the show, Ive always wondered what was up in there...
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Old 01-09-2009, 05:44 AM   #5
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Thanks for the pictures. What can you do as far cleaning once it's apart? Can you clean the rotor and other internal bits? If so, what do you use?
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Old 01-09-2009, 08:01 AM   #6
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Quote:
Originally Posted by ta_man View Post
Doesn't look at all like a bonded rotor. Look closer and you will set of four arc segments of Neodymium magnet attached to a central part of the rotor and wrapped in carbon fiber.
Perhaps that is what a sintered rotor looks like on a neu then. However, it looks nearly identical to the bonded rotor I removed from my GTB when replacing it with a sintered rotor. The sintered rotor looked like a solid metal cylinder with the shaft running through it. I guess I should not be comparing apples to oranges.
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Old 01-09-2009, 08:13 AM   #7
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It would fall apart if they made the rotor like Novak, because of the four seperate magnets.

They have to bond and glue the magnets with carbon or kevlar with this multipole design.
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Old 01-09-2009, 10:24 AM   #8
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Medusa


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