Bearing race in a gear box. I cannot get behind the race it is in a recess that has no opening. Was the end of a shaft. I know I have heard of welding on the race. Seems the heat would make it larger. Am I dreaming or is this a trick I need to try. No grove or room to put a slide bar puller and can,t get a chisel to start the race out. jm.
- Thread starter jm.
- Start date
old
Well-known Member
- Location
- Camdenton Missouri
If it is where you can get a die grinder into it you can cut a groove in it in 2 places then use a chisel or yes maybe you could do the welder trick but I have never tried that one but hear or is that here it works
Anonymous-0
Well-known Member
welding works good, when the weld cools it shrinks, It should come out with little problems 
Anonymous-0
Well-known Member
When you are welding on the race weld some junk onto the race in 2 or 3 places, to give you something to grab onto to assist in the pulling, after cooling.
Az. Peapicker
Member
If the gear box is cast iron , I ve even heated the outside of the gearbox & sometimes the race will fall out. Another if you have a cutting torch I seen them cut a groove in the race & get them out that away if its cast iron.
Another vote for welding the inside of the race. It will shrink enough to make it a slip fit. If at first it is still too tight weld again. Every time you weld on it it will shrink in the direction of the weld. The weld bead draws towards itself as it cools. Weld multiple beads on one side of a steel plate and it will start to curve. The torch heat will work the same way, but it will take a bit more time. It might help to put some ice on the race right after welding to cool it faster than the housing. IE: housing hot, race cool, less interference.
Anonymous-0
Well-known Member
I did the finals on a JD 355D crawler. 1 MIG bead around the inside of the race and they practically fell right out. Nothing is easier than that considering it doesn't matter if you do a nice weld or your weld looks like crap. The races can't expand but shrink even smaller on cooling.
trucker 40
Member
Welding works.3 or 4 welds across it and it will fall out.Also is a good idea to weld something onto it to pry against to help get it out.
trucker 40
Member
Thanks for the follow up!Im glad it worked for you!Sometimes if you dont get enough weld on the race it takes a few more to get it loose,but its a good trick.
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