What size machine is this we are talking about ?

Press fit is fine provided it's pressed into something substantial, pressing a bearing into a length of licorice extrusion doesn't cut it with me.

Also stepper motors have one bearing pre loaded with a wavy washer to allow for expansion, any design that relies on this setup of deep grooved bearings and flexible thrust again isn't good design.

I can understand cutting corners to save money, many make that mistake but at these prices quoted they are not cutting corners to save money they are fleecing customers who believe all the bullshėt