Cut bearing race tools?

jonno634 · Mar 19, 2021

I have some bearing races (mostly needle bearings), that I can’t pound against, as the support will get damaged. I can completely remove and press them out, but it’s a big job. I am thinking I need something like a die grinder cut off wheel on a sawsall blade. Normal sawsall blades don’t seem to cut it (the races are hard, maybe stainless). Ideas?

Delmer · Mar 19, 2021

They make carbide grit sawzall blades for cutting cast iron, that would cut the race, but it would be slow and you don't have a lot of control with a sawzall. The races are very hard, regular hacksaw blades won't touch it.

Any chance you could weld or torch them? a picture might get a better suggestion.

Vetech63 · Mar 19, 2021

Delmer said:
a picture might get a better suggestion.

This is what I was thinking too.

JD955SC · Mar 19, 2021

I normally remove a bearing race if at all possible by heating it with a torch in four places and they normally practically fall out with some very light tapping. Whether that would work for your kind I don’t know I mainly remove normal cone style bearing races.

Midnightmoon · Mar 19, 2021

A torch and a steady hand

92U 3406 · Mar 19, 2021

JD955SC said:
I normally remove a bearing race if at all possible by heating it with a torch in four places and they normally practically fall out with some very light tapping. Whether that would work for your kind I don’t know I mainly remove normal cone style bearing races.

Better than welding. Cleaner.

JD955SC · Mar 19, 2021

92U 3406 said:
Better than welding. Cleaner.

Also no wandering off of the race by accident either and welding what you don’t want to weld lol

jonno634 · Mar 19, 2021

I don’t have a pic of a bad one, but here is what a new one looks like. Inside diameter is 1 inch, and it’s 1.5 inches long.

Delmer · Mar 19, 2021

We need to see what's special about where they're mounted that you can't pound them out. Torch is easy if you can, welder will work if that's all you have. Either one will shrink the housing and it will pull out easily.

Bluox · Mar 19, 2021

jonno634 said:
I don’t have a pic of a bad one, but here is what a new one looks like. Inside diameter is 1 inch, and it’s 1.5 inches long.

Do you have access to a blind hole bearing puller?
Bob

jonno634 · Mar 19, 2021

I’ll try to post a pic of the location. But I have less then 20 inches between pieces. These are on a grain drill (seeder/planter) and there isn’t lots of clearance. Removing the entire thing is 4 or so hours, doing it on the equipment is like less then 20 minutes.

hosspuller · Mar 20, 2021

Definitely a photo will help get you better suggestions. I'm familiar with planters so point out the location of the bearing. Perhaps a "C" press might work in your 20 inches. Or a jack screw ala cylinder sleeve puller.

DMiller · Mar 20, 2021

I'm with Bluox on this, Blind Hole bearing puller is a wonder for these.

That is what is considered a 'Torrington' bearing but is seldom spoken anymore.

jonno634 · Mar 23, 2021

So, here is the pic. The one underlined in black, is the one I don’t really want to pound against, as its the inside of the rod of the hyd cylinder. The other 2 are bottom pivots, the far one isn’t visible, but I think you’ll understand.

Delmer · Mar 23, 2021

I don't see any reason not to pound them out or press them out. Put a bigger socket behind the end of the rod with a large sledge behind that, and pound away. Or press them out, or torch or weld some beads to shrink them.

Maybe doesn't matter, but I wonder why they used a roller bearing there instead of a bushing? maybe it's a light load and a lot of cycles and they didn't want to have to grease it.

Tinkerer · Mar 23, 2021

Pull the pins out of the cylinder and get it out of the way.
Then, if you have access to a lathe you could make or have one made like a camshaft bearing tool. Drill a hole in the center for 3/4 inch all thread.

jonno634 · Mar 24, 2021

I built this, and plan to use it with hallow ram and my porta power (if using all thread wont pull it). It’ll be a bit before I get to this project, but I’ll let you know, what finally worked.

Cut bearing race tools?

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