XR Gear Materials
 

Hi Guys,

Does anyone have the following information as far as what the XR gears are made of and how the are manufacturered?

· Alloy of gear

· Forming operation (i.e. cold hot or forged)

· Method of hardening (i.e. induction or case hardened)

Thanks for your help.

Mark

Sh!tty
P!ss poor
Not very

Hope that helps.
PM "Smitty" he has that info I think.

What are you up to now, Mark?

Yes, why?

stuff :cartman:

I had an upper gear set fail after ten hours of use (All work was perfromed by certified Merc Racing Tech who has worked on my stuff before with zero issues.) and where the gear broke it was obvious the casting was bad. Straight line crack all black on one side and bright silver on the other.

I have a friend who is a metalurgist looking at the failure and he asked for the information.

The term "near net forged" comes to mind.

I have a rather nice collection of these.

This collection includes a specimen of each type
of failure that's commonly known to man.

I don't know what you're up to, but you're more than welcome to borrow a sample;)

if the x and xz gears are the material any ideas why they seem less susceptible to this type of failure?

The XR has only one tooth in contact at any giving moment where as the x and xz have 2 1/2 teeth in contact.