Could use some help finding a bearing

[dnschmidt]

How much does Burr-King want? If it's under $100 If your time an effort has no value then go on a wild goose chase. If you, like me, value time and effort just call them up and pay the price.

 

[RustyRelicRevival]

$120-140. You would think its just some double stack bearings until you press off the aluminum collar and realize it's not. Oh well. I guess I'll coff up the money. I paid $200 for the whole freaking 562 model with no motor.

 

[PMD1966]

I’m rebuilding a Burr King 760 belt grinder (jut got me a nice KBDC VFD and 3HP 3-phase motor for it), and the contact wheel bearing is pretty rough. I’m hoping to replace it, but not pay Burr King prices.

I know enough about bearings to get myself into a little trouble, but I can’t seem to find the one I need. It is a double row (that always makes things tougher), 16mm bore, 30mm OD that is 39mm wide, 2RS. Am I just not going to be able to find this?

Detroit Ball Bearing in Sterling Heights MI. (586) 978-7400. Used to have one locally in Pontiac. Closest one now is Sterling Heights.

 

[FrankLee]

I have renewed bearings by simply re-lubing them. Pop the seals out, clean the bearing, re-grease, pop the seals back in. It's not a fix, but it buys you some time.

You could also stack up three 30x16x10 bearings, but that's not a common size either.

^ This.

The water pump style bearings can come with shields or seals. If seals, they can be carefully removed to clean and repack the bearings.






I destroyed this one just to see how they are constructed. As you can see, the shaft incorporates the inner races. This allows a much smaller OD for the outer race.

 

[tak1313]

like this?

330902 bearing, Deep Groove Ball Bearings 16x30x39 for Charlotte Amalie, 0.25 KG - en.tradebearings.com

high quantities 330902 Bearing dimension: 16x30x39, Enquiry for global 330902 Deep Groove Ball Bearings suppliers for Charlotte Amalie or other, M:0.25 kg, en.tradebearings.com

en.tradebearings.com

I think it's as someone else said - search for radial pump bearing "16x30x39"

 

[Pinemarten]

I think based on the shaft being used for the inner race, you should buy a shaft assembly from the manufacturer.
I would guess the wear occurred in the "shaft race" and a generic replacement bearing won't work.

 

[Pinemarten]

I'm assuming it is an older machine. Here is Burr King's older model 760 parts schematic:

https://www.burrking.com/documents/schematics/760%20vintage%20schematic.pdf

For a belt grinder that now sells for 3 Grand, I'd just buy the correct part.

 

[rlitman]

I'm assuming it is an older machine. Here is Burr King's older model 760 parts schematic:

https://www.burrking.com/documents/schematics/760%20vintage%20schematic.pdf

For a belt grinder that now sells for 3 Grand, I'd just buy the correct part.

Being that this thread started in 2018, I'd normally say the OP probably got around to fixing it already, but well, life has a way of getting in the way of my projects, so no, I actually haven't finished this one yet. LOL. But I did decide to just buy the spindle when I get back to it, so you're right on the money there.

As for "older machine", it came from the Fairchild Republic factory in Farmingdale NY. That closed in 1987, but the machine was surely far from new then.

 

[Pinemarten]

I wish you well on getting it up and running again. Those sure look like quality grinders,
and make my belt sander/grinder look like a kid's toy!

 

[alfadan]

Assembly probably costs 3x what it did in 2018


Lol just bustin' your balls!