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Old 04 June 2007, 11:52   #11
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Originally Posted by 4str View Post
I can't remember the name of this tool and you would have to translate from american english anyway, so I'll do my best with a description:

The file is square in cross section with each of the 4 sides having a different thread count cut into the file. The shape of the cutting teeth fit perfectly into the thread channels if you choose a side with the proper thread count. I have two of these, they have 4 different thread counts on each end, so I have a total of 16 thread counts on 2 tools. They work great on buggered threads and take up little room in a traveling tool box.

I had a similar bearing failure on my boat trailer. The bearing race came out in pieces! I am amazed that the wheel still moved given the damage to the bearing. Inspection showed that the seal surface was knackered by the hub wobbling on the spindle. Solved that problem with a set of stainless steel sleeves, thin rings that are pressed over the old sealing surface. Now my trailer's seals ride on a nice, smooth stainless surface, instead of one pitted from rust. And a set of greaseable piston hub caps (called bearing buddies in the US) keeps a slight positive pressure in the hubs to keep the sea water out.

Good luck!
Sounds like a thread chaser?
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Old 04 June 2007, 12:06   #12
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Originally Posted by Sixy_the_red View Post
Sounds like a thread chaser?
Nah, a thread chaser is a bit like a wood chisel but it has teeth on the end. It's used for finishing a thread which has been cut using a lathe.
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Old 04 June 2007, 12:27   #13
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In the UK it is called a thread file, Each side ( 4) has a diferent thread pitch or TPI. Most are double ended so you get a total of 8 thread pitches. As previously mentioned a thread chaser is used on a lathe to finish a thread that has been screw cut on the lathe.. If thread damage is minor then use a triangular needle file and finish off with a stiff steel wire brush then apply a small amount of fine valve grinding paste and wind the nut back and forth. Remember to wipe/flush of the grinding paste when your done.
Regards. T.
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Old 05 June 2007, 03:50   #14
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