Sunday, May 19, 2019

one and a half horse motor from old compressor

Picked up a scraped air compressor without a tank.  1.5HP TEFC motor.  Bearing on the output side was bad.  620414ZZ,  Purchased a bearing puller set in addition to the new bearing.

Cost
$1 Air Compressor
$10 Bearing
$59 Bearing puller

The internals of the motor are very clean.  TEFC is nice.


After cleaning the motor shaft I installed the puller and applied pressure.  A few taps on the puller and the bearing started to move.   Drilled out a bit of pipe to make a tool to drive the new bearing on.   Motor is back together and runs nice.  Old bearing might have been OK with some grease.  I don't know if one can remove and then replace the metal shield.  Should have tried on the old one then greased the new if it worked.  Maybe next time.

The compressor head is cast iron and looks good.  I will pull it from the base and put it up in the loft for now.  When I get setup for sand blasting I may want an additional compressor to up the SCFM.

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