**** ONE FOR YOU METAL People ****

Miniwilliams · Post by **Miniwilliams** » Fri Apr 06, 2007 6:40 pm

This is the second time 3rd gear has snapped a tooth off the laygear, nothing wrong with 3rd gear to make this happen as it was replaced last time with new.

do you think I could help it from braking off by grinding a small radius on around where the teeth are machined, as there is a sharp edge there at the base of the tooth. They say it works on cranks so thought about this??

Here are the teeth in more detail,

I've have roughly arrowed where i thought a radius might work.

Cheers
Matt

duncan · Post by **duncan** » Fri Apr 06, 2007 7:52 pm

That's bad luck Matt - do they not make them with the radius already in place

JC · Post by JC » Fri Apr 06, 2007 8:41 pm

Maybe bead blasting would help, this would radius all the sharp edges, then maybe some nitriding to restore the hardness....or whatever its called now :?

JC

Miniwilliams · Post by **Miniwilliams** » Fri Apr 06, 2007 8:48 pm

yes liking the idea, do you know where i might get this done?

JC · Post by JC » Fri Apr 06, 2007 8:51 pm

Miniwilliams wrote:yes liking the idea, do you know where i might get this done?

I'll be showing my age if I told you...they are long gone anyway, Reynolds and Hostler, they were in Norwich...I can make some enquiries Tuesday...I'm sure someone else may have some suggestions....

JC

max1 · Post by **max1** » Sat Apr 07, 2007 3:04 pm

matt coltec at grundisburgh do shot and bead blasting (peaning) also get them cryo treated

JC · Post by JC » Sat Apr 07, 2007 8:20 pm

max1 wrote:matt coltec at grundisburgh do shot and bead blasting (peaning) also get them cryo treated

Would the Cryo treatment bring them back to the same hardness as they were originally or slightly softer....

Was it too brittle?

JC

Miniwilliams · Post by **Miniwilliams** » Sat Apr 07, 2007 11:42 pm

Are nice one mate, People on the mini Board are saying about cryo treated
what ever that is. Be nice as there are local.