Using a forumula I found at http://taylormhc.com/wp-content/uploads/2016/11/Sprocket-Engineering-Data.pdf,
Pitch Diameter = Pitch / SIN(180/Nt)
where Pitch = 1/4" and Nt = 10, yields 0.809" or half that for the radius.
Using a forumula I found at http://taylormhc.com/wp-content/uploads/2016/11/Sprocket-Engineering-Data.pdf,
Pitch Diameter = Pitch / SIN(180/Nt)
where Pitch = 1/4" and Nt = 10, yields 0.809" or half that for the radius.