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  #11  
Old 01-12-2024, 08:38 AM
Jack Jack is offline
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Quote:
Originally Posted by Ironman View Post
Why not have brass or bronze bearings machined in a shop or someones lathe?
This is not a high speed application, and in my opinion the bushing will hold up better to the weight and dirt in use than an needle roller bearing will. Needle rollers are used where high speed and small space is needed, such as the cups of a U joint.

If this was my machine I would make these bushings out of Acetal
Ironman, no disrespect intended, but a roller bearing moves smoother and easier than any 'bushing' ever will. From stand-by generators to skill saws, a huge difference in price is whether a machine has bearings or bushings.
Any doubt will quickly subside when manually pushing a saw carriage thru ONE log (via bushings) verses pushing the same carriage all day rolling on bearings!
I AM the horsepower, so I feel & know the difference.

Thanks for the reply.
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  #12  
Old 01-12-2024, 09:19 AM
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Ironman Ironman is offline
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Quote:
Originally Posted by Jack View Post
Ironman, no disrespect intended, but a roller bearing moves smoother and easier than any 'bushing' ever will. From stand-by generators to skill saws, a huge difference in price is whether a machine has bearings or bushings.
Any doubt will quickly subside when manually pushing a saw carriage thru ONE log (via bushings) verses pushing the same carriage all day rolling on bearings!
I AM the horsepower, so I feel & know the difference.

Thanks for the reply.
if you are set on those needle bearings, I don't know where you will find them. The closest I found in cup were too short. You would have to make a sleeve and stack about 4 of them in it.
I am guessing the original manufacturer is not in business?
Any other bearing, such as a sealed ball would require machining, and it sounds like that is off the table.
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  #13  
Old 01-12-2024, 09:42 AM
willyfixit willyfixit is offline
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Here is a thread on another forum where the OP has some pictures posted of what he is looking for.
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  #14  
Old 01-12-2024, 05:33 PM
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Matt Shade Matt Shade is offline
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Any chance there is enough clearance to put 3 inch rollers in the same brackets? You would theoretically only lose a 1/4 inch of height.

https://www.amazon.com/Sidco-Supply-...89&sr=8-9&th=1
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  #15  
Old 01-27-2024, 03:27 PM
Jack Jack is offline
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Thanks Matt, that's the plan when warm weather returns. Actually going to 4" cast iron wheels with bearings installed.
I did find the correct bearings but only by SIZE as there wasn't enough of the part number left to distinguish.

I've learned more about bearing than I ever thought I would, over the last few weeks.


Quote:
Originally Posted by Matt Shade View Post
Any chance there is enough clearance to put 3 inch rollers in the same brackets? You would theoretically only lose a 1/4 inch of height.

https://www.amazon.com/Sidco-Supply-...89&sr=8-9&th=1
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  #16  
Old 03-24-2024, 01:17 PM
Don_S Don_S is offline
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Looking at the pics on the other site. They look like cable sheaves to me.

If you end up replacing the wheels you may want to look at some of those choices. They have some with 1/2" axles on McMaster. Not cheap but it might be a very close drop-in.

-Don
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