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January 21, 2019, 08:56:00 am
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More bearing problems

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Author Topic: More bearing problems  (Read 727 times)
Rockoteer
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« on: August 31, 2010, 09:03:50 am »


I have been unable find bearings (at a decent price) for my Poly Products arbor.  They are 19mm id X 47mm od.
I have searched the www high and low to no avail.  I did find them thru bearing locator but by the time they got to my door they were $48.
Any suggestions?

TOG
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-Gary

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Whether you think you can, or you think you can't, you're probably right.

johnjsgems
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« Reply #1 on: August 31, 2010, 09:12:14 am »

You might try The Big Bearing Store.com.
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Taogem
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« Reply #2 on: August 31, 2010, 11:50:21 am »

Do you have a bearing supply/repair shop near by.

That is where I took mine . They had the bearings in shop and were able to replace quickly.
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Steve
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« Reply #3 on: August 31, 2010, 01:24:27 pm »

I agree with George......there has to be a bearing supply store near you somewhere.....think of all the automotive repair work happening.  I personally use sealed Timpkin bearings when I need to replace from such a supply store.
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Rockoteer
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« Reply #4 on: August 31, 2010, 02:35:24 pm »

I agree with George......there has to be a bearing supply store near you somewhere.....think of all the automotive repair work happening.  I personally use sealed Timpkin bearings when I need to replace from such a supply store.

We do.  Columbia Bearing...Timken does not make one that size...The 19mm I.D. is the rub as it is an odd size.  I did however find, on the Internet, a company that researches for you and finds your bearings, which they did for me.  I don't know why I couldn't find them searching myself but .... I didn't.  The bearings are 16.75 ea. for a subtotal of 33.50 plus 12.75 freight. Total 46.25 which I think is not bad.      ura

www.locateballbearings.com/BallBearingContactUs.html

TOG
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-Gary

Of all the things I've lost..I miss my mind the most.

Whether you think you can, or you think you can't, you're probably right.
Michael
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« Reply #5 on: August 31, 2010, 03:31:15 pm »

I have a question. Bearning come with a number stamped on the outter race. can you see that number? can you post a picture of it? Is it a tapered bearing? or a rubber wrapped one? A roller type. We work with many types of bearings and have always found that we could cross over almost all of them. The only ones that are very difficult to match are the chinese knock offs of American bearings
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johnjsgems
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« Reply #6 on: August 31, 2010, 08:22:23 pm »

I don't know metric but every Poly I've seen uses 3/4" bearings (8"  units) and 5/8" (6" units).  They are ball bearings, insert type with no rubber isolators if I remember right.
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« Reply #7 on: September 02, 2010, 01:14:03 pm »

I will post a pic at the bottom of this reply.

I have a question. Bearning come with a number stamped on the outter race. can you see that number? can you post a picture of it? Is it a tapered bearing? or a rubber wrapped one? A roller type. We work with many types of bearings and have always found that we could cross over almost all of them. The only ones that are very difficult to match are the chinese knock offs of American bearings

The number is 87504 A 19.  Columbia Bearing said the A 19 is 19mm id and the od is 47mm.

Fractional  Decimal  Metric
3/4           0.7500    19.0500

I don't know metric but every Poly I've seen uses 3/4" bearings (8"  units) and 5/8" (6" units).  They are ball bearings, insert type with no rubber isolators if I remember right.
John, it could very well be a 3/4" bearing.  I know that it was extremely hard to get off.  It took a piece of 3/4" pipe and a sledge hammer.  I have another Poly that is in good shape and I will try and get a number off of it.





TOG


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-Gary

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« Reply #8 on: September 02, 2010, 09:48:48 pm »

That was one of the pluses from taking mine to a bearing supply and service shop. They have the presses to easily remove and reinstall them.

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« Reply #9 on: September 03, 2010, 12:18:08 am »

That was one of the pluses from taking mine to a bearing supply and service shop. They have the presses to easily remove and reinstall them.

I took one in to a machine shop and had them remove it.  Took longer to walk from my car to the door than it did for them to pop it off.  Cost me $40 so I decided that would be the last time. 

If a person has to take it apart to change the belt I would think that they should come apart a little easier than these "two" did.

Tomorrow I am going to take the shaft and bearing out of the other poly and go down to the bearing shop and see if I can't use a 3/4" id like John was saying.

TOG
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-Gary

Of all the things I've lost..I miss my mind the most.

Whether you think you can, or you think you can't, you're probably right.
Taogem
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« Reply #10 on: September 03, 2010, 12:33:25 am »

That was one of the pluses from taking mine to a bearing supply and service shop. They have the presses to easily remove and reinstall them.

I took one in to a machine shop and had them remove it.  Took longer to walk from my car to the door than it did for them to pop it off.  Cost me $40 so I decided that would be the last time. 


Ya.. That is more than just a little steep of a price. I could swear that it was about 40.00 to do the whole project including bearings at the shop I went to.

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Michael
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« Reply #11 on: September 03, 2010, 05:24:06 am »

We tried that number you gave and it does not show up anywhere. A good bearing and belt supply house should be able to match it. just take it to them and let them measure it.
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« Reply #12 on: September 03, 2010, 08:39:36 am »

We tried that number you gave and it does not show up anywhere. A good bearing and belt supply house should be able to match it. just take it to them and let them measure it.

I went to the only one we have here in Moses Lake and thats Columbia Bearing.  The one I took out of the other Poly is a different number and I am going to take it down today, along with the shaft and housing and see what they can come up with.

One of the disadvantages of living in a small town.

TOG
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-Gary

Of all the things I've lost..I miss my mind the most.

Whether you think you can, or you think you can't, you're probably right.
Rockoteer
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« Reply #13 on: September 03, 2010, 02:35:00 pm »


I took the bearing out of the other poly arbor and went to Columbia Bearing.  I got a different clerk and right away he said its (as John said) a 3/4"id X 47mm od X 1/2" wide.  Found the "Timken" bearing 204PP4 Z22-P.  He only had one and it was 28 bucks.  I got it but it hurt way down to my toes to spend that much.  The clerk said you could probably find a cheaper one on the net.....long story short """"YES''''''' I did at bearingsdirect.com......for 9.45 each and shipping was 5.85.....total 34.20 for three more bearings ura ura ura.

Thanks to all for their help

TOG
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-Gary

Of all the things I've lost..I miss my mind the most.

Whether you think you can, or you think you can't, you're probably right.
Michael
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« Reply #14 on: September 03, 2010, 04:27:42 pm »

Good...... I hate to pay a lot for bearings. I know some have a hugh mark up but most are only a few dollars.
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