[Drifteral]

Does anyone know what the thread pitch and size is for the main gear legs?

Don't ask why, its too embarrassing to say....

Thanks
Al

 

[pczar3]

Drawing #45 Gear Dimension

Hi Al,
According to the drawing, it is a 1 1/4 - 16 NEF thread. The threaded part is 1.0 inches long.

Hope this helps,

Paul

 

[PaulvS]

Main gear thread size

1 1/4 - 16 NEF

I needed to extend the threaded portion on the nose gear and found a die of the correct size on eBay for about $70. It worked fine. The name brand dies from specialist tool shops were $200-$400.

 

[Drifteral]

Great... Some odd ball thread I can't find a die for.

Thanks Guys!

 

[WingsOnWheels]

Great... Some odd ball thread I can't find a die for.

Thanks Guys!

It is not hard to find, don't get hung up on the NEF, just look for the 1 1/4-16. 1.25 UNC means -7 pitch, 1.25 UNF is -12 pitch. They are still a 60 degree thread.

What throws me off on Vans Spec, is that the that the ANSI spec for UNEF thread in 1.25" is 18 pitch, not 16.

 

[dpansier]

Depending on the severity, a thread file can clean up damaged threads.
Example here: https://www.mcmaster.com/2616A11/