Re: (ET) Pulling the motor bearings

[Bill Alburty <willaim kc rr com>]

On my recent bearing pull from an E-12 skinny motor, I used a 3-legged puller which worked great and never endangered my armature windings. O'Reilly rents pullers and the first 48 hours is free. I was fooled for a while when pulling the flange on this motor until I figured out that the flange is only a cap on the end of the shaft. I guess the split puller attachment would be a great help if you don't have the correct size puller.
Bill Alburty E-12 Kansas




Chris Tromley wrote:

Actually I did use a split puller.  Maybe my armature windings were unusually close to the bearing.  Apparently something cocked while pulling and the edge of the puller severed a wire.  Probably easy to avoid if you check the back side of the puller as everything tightens up.

Chris

On Sun, Jun 19, 2011 at 8:03 AM, <steven1955 comcast net> wrote:

Bill and others,

When pulling bearings off a motor do yourself a favor.  Use a split bearing puller.  (Google split bearing puller ot split bearing attachment to see what they look like.)  Standard wheel pullers are too big and can damage windings or commutators.  (Evidently Chris ran into this issue.)  You can get away with wheel pullers sometimes, but the split bearing pullers were designed specifically to remove ball bearings in tight quarters.

Steve Naugler

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