Press-fit load calculation always takes friction into consideration and gives you the load expression as follows,
$$F = µ\cdot PA$$
where µ is the friction coefficient, P (Interference Pressure) is the pressure developed due to interference and A being the total surface area in contact (after pressing).
So, if the friction coefficient is 0, does it mean the load required to create the press fit is 0?
Intuitively it doesn't seem like that, because there should be a minimum force to at least deform the hub/shaft. But that case isn't included in the formula mentioned above.
I'm asking this just to know the upper bound/lower bound of the press load.
Also, the formula doesn't take into account the entry chamfer of the hub. Without the chamfer, the case would be similar to that of punching sheet metals and not press-fit.
I have worked out the case that includes the chamfer, with no friction acting on the shaft. I'm not sure if it is a correct approach, but there's that. Any feedback would be greatly appreciated.