Electromotor and Pump

I can think of a few options.

1) Buy a new pump that mates to the new motor.

2) Remove shaft from old motor, and see if it fits in new motor.

3) Take both new motor and pump to a reputable machine shop and have them either rework the shaft, make a new female end for the pump, or whatever is the most cost effective method that they can come up with to join them.

1. Rent a time machine.
2. Go back to just before ordering the replacement motor.
3. Measure the pump and order a motor to match.
4. Install correct motor.

Point No 3 of Karamat and have the coupling balanced on a lathe.

I'm with Tornado. I can't understand how the correct replacement motor would not be ordered. Whether it is IEC or NEMA, dimensions are standardized. Horizontal & long-coupled is quite simple to adapt, but not vertical & flange-mounted. I'd get the correct motor rather than try to adapt the wrong motor.

I'd get the correct motor rather than try to adapt the wrong motor. - he is not talking about a wrong motor but a correct new one whose flange/couplings do not match with the old motor.The what he should do?

How is the motor correct if the flanges don't match?

Sorry you are right, I checked up the vertical motor broucher.I was thinking of a horizontal motor that we normally have with shaft protudeing out and we attach a coupling.

there are "spiders" available that might do the job. they're basically two rubber couplers that will absorb a slight amount of misalighment and will couple different size shafts.

Are you sure about that?

Don't damage the motor that has a resale value, just beat the crap out of whoever ordered it!