wheelhub/bearing mystery.

[emtor]

I need to replace the front hub/bearings on my Volvo V70, and I've been at the swedish Autodoc site.
By submitting the registration number I get a long list of parts suitable for this car. Most of the kits are equal to the image below.
The problem is that the hub needs to be pressed out/in with a hydraulic press. -Forget that.



Another bearing kit from Autodoc is this one, where the kit bolts on to the spindle housing with four bolts. No need for a press.
But, this variety is equal to the bearings for the rear wheels although the Autodoc site has it listed as front bearings.


Furthermore, the number of splines aren't the same for all the kits either.
Some have 40 splines, while the one which bolts on with four bolts has 36 splines.

I've been watching videos made by large workshops, and all of them shows the easy version that bolts on the spindle housing. One video however shows the version that needs a hydraulic press.

I'm confused.