Thrust Bearing help

[Oompa LumpaParticipant @oompalumpa34302]

[Oompa LumpaParticipant @oompalumpa34302]

So, with the ongoing restoration of my Drill Press it is time to order the bearings. The roller bearings are pretty straightforward but I have come to a screaming halt with the thrust bearing. I usually use Simply Bearings to get my bearings from but I have been going round in circles (?) for a little while looking for a replacement.

I was thinking maybe a spherical thrust bearing may be an alternative but that isn't going to work so if anyone could give me some suggestions as to a supplier of one of these. It is a Roller Thrust Bearing, 1.5" in diameter, 5/8" thick and a 3/4" hole in the centre:

graham.

[Enough!Participant @enough]

Don't know how far afield you want to go, Graham, but I've always found VXB to have a wide range of bearings at reasonable prices and shipping rates.

[Keith LongParticipant @keithlong89920]

Unless I'm missing something somewhere that looks like a BALL thrust bearing.

How tight are the meaurements that you gave, because Simply bearings have a ball thrust coming up with 3/4" bore, 5/8" thick but with a 1.531" od – which seems like a funny number to me (1 17/32&quot. Price about £7.50

Keith

[BazyleParticipant @bazyle]

No answer to your problem but I like the look of your posts on the drill restoration. Can you repost it all in its own thread please as it will get lost in the WDYDT thread.

My Meddings 'restoration' only consists of removing the cement and glue.

"Boss! Where shall I put the glue pot while I drill this bag of cement?"
"Just balance it on top of the drill"
Boss! The glue pot tipped over and my hands are all sticky"
" Well don't just stand there. Dip your hands in the cement powder and keep operating the drill."

[Boiler BriParticipant @boilerbri]

Yep defiantly a ball thrust bearing. Readily available at most bearings suppliers, Wyco, bearing services etc.

Bri

[Oompa LumpaParticipant @oompalumpa34302]

Posted by Keith Long on 09/08/2014 19:00:32:

Unless I'm missing something somewhere that looks like a BALL thrust bearing.

How tight are the meaurements that you gave, because Simply bearings have a ball thrust coming up with 3/4" bore, 5/8" thick but with a 1.531" od – which seems like a funny number to me (1 17/32". Price about £7.50

Keith

Roller bearing/Ball bearing – lost a bit in translation there, sorry. But that is actually the exact size I am looking for, I agree 1 17/32" IS odd. My problem is, I can't find it. If you could give me a link I would be grateful. Thanks.

GOT IT!

Thanks everyone.

graham.

Edited By Oompa Lumpa on 09/08/2014 20:53:10

[Keith LongParticipant @keithlong89920]

Hi Graham

Try this link hopefully it should take you to the bearing. The code number I'm getting up is showing as an LT3/4 Imperial Thrust Bearing. Got the price wrong it's actually listed as £7.60 + vat. Good luck with the search.

Keith

[Oompa LumpaParticipant @oompalumpa34302]

Posted by Bazyle on 09/08/2014 19:47:04:

No answer to your problem but I like the look of your posts on the drill restoration. Can you repost it all in its own thread please as it will get lost in the WDYDT thread.

My Meddings 'restoration' only consists of removing the cement and glue.

"Boss! Where shall I put the glue pot while I drill this bag of cement?"
"Just balance it on top of the drill"
Boss! The glue pot tipped over and my hands are all sticky"
" Well don't just stand there. Dip your hands in the cement powder and keep operating the drill."

I will try to collate the various posts and put the images in some sort of order. I spent an hour today with the main head. I have had it soaking in a five gallon drum of cellulose thinners. It was a very messy job, it is back soaking. Trying to get fifty years of grease dissolved.

graham.

[Oompa LumpaParticipant @oompalumpa34302]

So while we are all still here, thinking ahead I am going to have a bit of a problem with the motor and the pulley. The pulley has a 5/8" hole in it and the nearest is a 16mm shaft. Shall I just shim it out a bit, or replace the pulley? I am going to be using a Variable Frequency drive on the machine so I want it to be as smooth as possible.

graham.

[roy entwistleParticipant @royentwistle24699]

Graham Could you open the hole in the pulley and then put a sleeve in it ?

Roy

[Bob Brown 1Participant @bobbrown1]

5/8" = 15.875mm so if motor shaft is 16mm just open up the hole by 0.125mm

Thrust bearings are not that close on fit to the shaft or housing as they are designed to take a thrust load.

Edited By Bob Brown 1 on 10/08/2014 10:12:11

Edited By Bob Brown 1 on 10/08/2014 10:12:53

[Oompa LumpaParticipant @oompalumpa34302]

Roy and Bob,

thank you for wasting your time on an idiot such as myself. For whatever reason, I had convinced myself that 16mm was smaller than 5/8". I have no idea. Last week I had convinced myself that 3/4" was only a few thou short of 18mm. Which is totally untrue.

I am going to put it down to age and the fact I have to deal with some customers who are as thick as chocks. After a while some of the stupidity wears off them and onto me and I am probably well infected by now!
Have a great Sunday,

graham.

[Nicholas FarrParticipant @nicholasfarr14254]

Hi, you will find that one of the bores of the bearing rings is a close fit to the size of the shaft/spindle and the other one is slightly larger, the slightly larger one being clear of the rotating shaft/spindle.

Regards Nick.

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