Which Pump Bearings & Seals?

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PaulTX posted this 2 weeks ago

I have a Hayward TriStar 2-speed SP32152EE 1.5HP pump that has an AOSmith/Century motor on it,  Motor is part# 7-K56AA14A04-05 (see image below).  Pump is starting to whine pretty badly and I want to overhaul it if possible with bearings & seals but I can't find the correct info for those parts.  I did look in the INYO reference here but didn't see it.

Can anyone tell me which parts I need?

AOSPumpMotor

Thanks!

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PaulTX posted this 6 days ago

FYI I contacted Century (RegalBeloit) and they couldn't/wouldn't provide the info.  They told me to contact Hayward.

I contacted Hayward, and a very helpful guy named Scott replied almost immediately with:


The bearing size for the shaft end is 304 and the other side
is 203.

InyoRob posted this 6 days ago

Below are the part numbers for the bearings and seals.

304 Bearing - Part Number 5270-36

203 Bearing - Part Number 5270-31

Tri-Star Seal Kit - Part Number GOKIT81

PaulTX posted this 6 days ago

Unfortunately the Hayward guy was wrong.  I decided to just pull them and measure them before ordering and I'm glad I did.  They are both 203 17mm x 40mm x 12mm double sealed bearings.  So from your store they are both the 203 Bearing.  

So to reiterate, you need 2 each of the 203 17 x 40 x 12mm bearing for this motor part#.

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InyoRob posted this 5 days ago

Thank you for the feedback, Paul. There are cases where A.O. Smith/Century changed the bearings from year to year in the same motor. It is always a good idea to pull the bearings to confirm.

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leschrapid posted this 5 days ago

Below are the part numbers for the bearings and seals.

304 Bearing - 1v1 lol Part Number 5270-36

203 Bearing - Part Number 5270-31

Tri-Star Seal Kit - slope unblocked Part Number GOKIT81

 

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