Guide Roller Diameter

[Piddler]

Could someone tell me the diameter of the Cooks standard guide rollers (front and back) for the 1-1/4 blade . They give a 2" diameter but for what end . Needing these measurements so I can make the base for them to bolt to. Thanks in advance.

[ladylake]

 

Cooks sells 2    2 1/2  and  3" diameter roller guides with flanges on the back, my TK runs 3" guides which I like better as they don't turn as fast, don't wear out as fast and should be a little easier on the blade but they cost more.  The diameter they list is for the guide surface, the flange will be quite a bit bigger.  Steve