https://tech.thk.com/en/products/pdf/en_a15_035.pdf#1

So there is more than one way of making a ballnut, again I learn something new :whistling:

I am struggling to see how the "Deflector Type" recirculates balls. From the diagram it looks like it happens in the middle of the nut, surely the return path should be at the ends of the nut? If that was the case then what is the difference between this and the return pipe version? :confused:

The preload options seem pretty simple, push the two nuts apart slightly or pull them together slightly or mess with the thread pitch. Surely messing with the thread pitch will lead to a shorter service life? When would each of the three pre-load methods be of benefit or inappropriate and why?

Thanks,

Jon