Warco Drawbar woes...

[irving2008]

Which machine is yours Kip... the GH or the Major?

I need to go measure it again... I thought the official size of 1/2 BSW is 12.7mm, where did you get 12.3mm from?

<edit> I found a coachbolt thats 12.6mm dia and it goes down with a bit of a 'push' so I think a 1/2" BSW drawbar will play...

<edit2> A 1/2BSW bolt is 12.7mm on the shaft BUT the threads have rounded tops so the diameter of the threaded portion is 11.35mm (core 9.99mm + 0.640327 * pitch of 2.116mm = 1.355mm ). A length of 1/2BSW threaded rod will fit therefore even though a 1/2BSW drawbar won't!

[irving2008]

Rats, so I could have bought that stuff and saved the postage!

Well they are down at the model engineer show at Ally Pally in January so the offered to ship it there in the artic and I could pick it up postage free (although the entrance fee is £8.50)

[Smiler]

Irving and Kip,

Can you explain for us non-mill-owning-but-interested forum users what a "drawbar" is? To me it is what I attach to my Massey tractor to drag a trailer.

Demystify please :D

Jeff.