In your sketch, draw a construction line from the axis to the circumference,
dimension the construction line. Finish the sketch, add a work plane by
selecting the construction line and then an origin plane that is parallel to
the construction line. That should create a work plane at the Ø.75 tangent,
then just mate the axes (bore and sphere) and the plane to a face.
--
Hal Gwin
Mechanical Designer
Xenogen