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76S&S
05-06-2013, 11:55 AM
I was in the process of refreshing one of my pumps and the bearing is getting a little noisy. Does anyone know what size it is?

I was looking on the page below but don't know the size.

http://www.jabscoimpeller.com/jabsco-bearings-s/1829.htm

CantRepeat
05-08-2013, 09:47 AM
Not sure of the size, but the only one that looks like bearing used in the ballast puppy pump is this one.

http://www.jabscoimpeller.com/jabsco-bearing-p/sp2601-0457.htm

At 5 bucks it's worth a try.

76S&S
05-08-2013, 11:45 AM
Cool, for $5 bucks I ordered one yesterday just to see if it might be the right one.

TReece
08-06-2013, 07:07 PM
Any luck rebuilding pump?

I have one going out!

mallees
08-07-2013, 02:54 AM
Not sure of the size, but the only one that looks like bearing used in the ballast puppy pump is this one.

http://www.jabscoimpeller.com/jabsco-bearing-p/sp2601-0457.htm

At 5 bucks it's worth a try.

I don't think that is the right bearing, It looks like a 6001

I rebuilt a Jabsco ballast pump a few years ago, and when i bought the bearings, i had to get a few extras to make up a minimum order value.
I still have 1 sitting in my drawer ;) NSK part# is 627z. Now it was several years ago, but I'm pretty sure this is the correct bearing. Only cost me about $3 each if i remember correctly. I assume you have stores in the States that specialize in bearings and seals. Bearing dimensions are:
22mm od
7mm id
7mm thickness.

CantRepeat
08-07-2013, 05:18 AM
Well if that is the correct part number its still pretty cheap.

http://www.amazon.com/industrial-scientific/dp/B007Z2WSY2

bturner2
08-07-2013, 06:14 AM
Well the review on Amazon wasn't the greatest for that part. Shipping is $9.95 so one bearing is $20 and 2 would be $30 (shipped) which is the price I recalled. The review pretty much sealed the deal for me on not going with this part.

Ordered two bearings, made in Indonesia, received them 1 day apart costing me 2x shipping... , the bearing fell apart after 3 days of use, hopefully my second one lasts longer.. I don't want to keep replacing these for my motor. Original bearings in my motor.. lasted 10+ years..

CantRepeat
08-07-2013, 06:35 AM
I found a guy selling them for 12 for 10 bucks. Said he didn't know what they went to so figured I'd take a chance on them.

Here's 8 for 9 bucks.

http://www.ebay.com/itm/New-Peer-roller-bearing-627Z-double-sealed-singapore-8/181031854282?rt=nc&_trksid=p2047675.m1851&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%2 6asc%3D261%26meid%3D397906197543172582%26pid%3D100 005%26prg%3D1088%26rk%3D1%26rkt%3D5%26sd%3D1710917 75809%26


I'm not sure if they are the correct size but I'll let you know when I get them.

mallees
08-07-2013, 11:39 PM
Most common cause of early bearing failure is bad installation technique. I would try to find a local industrial supplier that stocks bearings. These should be off the shelf for around $5-$10.

bturner2
08-08-2013, 09:47 AM
That's what I did with the place in Grand Rapids MI. No luck there. If someone can find something that works I have two pumps that need bearings and two pump housings that need seals. Would love to rebuild them as spares.

76S&S
08-08-2013, 01:15 PM
Turner, you may be able to find the seals at http://www.jabscoimpeller.com/jabsco-seals-s/1834.htm

CantRepeat
08-09-2013, 06:09 PM
I found a guy selling them for 12 for 10 bucks. Said he didn't know what they went to so figured I'd take a chance on them.

Here's 8 for 9 bucks.

http://www.ebay.com/itm/New-Peer-roller-bearing-627Z-double-sealed-singapore-8/181031854282?rt=nc&_trksid=p2047675.m1851&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%2 6asc%3D261%26meid%3D397906197543172582%26pid%3D100 005%26prg%3D1088%26rk%3D1%26rkt%3D5%26sd%3D1710917 75809%26


I'm not sure if they are the correct size but I'll let you know when I get them.

The ID on this is too small. It measures something like .278 and we need a .3095 ID.

mallees
08-13-2013, 11:58 PM
I just pulled apart a friends ballast puppy to see why it was running slow. I pulled the bearing and it was 608zz, not a 627 as previously thought. So I went to the bearing shop and bought a new one, when I tried to install it on the shaft, the new bearing just fell on.
I measured both the original bearing and the new bearing, (both are 608zz) and new one was 7mm bore, 22mm o/d and 7 thick, which is correct as far as the spec says, however the original was 6.92mm bore, other dimensions are the same. I don't know how or why the original has a smaller bore than its supposed to.:confused:
I'm going up to my cabin on the weekend so i'll drag out all my old spare pump parts and check this out further.

bturner2
08-14-2013, 08:10 AM
When I went through this exercise I took my entire motor to the bear specialist place. At first they were very confident that they would have something on the shelf or could order something in overnight. When they pulled out the bearing and measured it, I was told it was not a standard size and referred me back to the manufacture of the pump.

Very frustrating. For the life of me I can't understand why someone when engineering this wouldn't use a standard off the shelf part. I'm sure there's an answer here somewhere and a way for us to rebuild these but if we are able to find a source we'll probably have to do a volume purchase to afford the rebuild parts.

mallees
08-14-2013, 07:18 PM
The standard 608zz bearing would do the trick. You would need to pin punch the shaft and apply some loctite retainer to hold the bearing place. These pumps only run for 5-10 mins at a time, so there is no real load on the bearing. The other problem i have is that the front motor end shield appears to have been machined slightly off-center, so there is a considerable side-load on the bearing.