Well... Got the parts yesterday (15 days air delivery was about 20 days) and one pinion is dropped off the package and the rest are already broken. Some teeth are missing small pieces. Ordered few bearings to test too, all roller cages were bent on the way.

Packing was just cheap carton box without almost any padding inside. Bearings and shims were put in one plastic bag together without any boxes or padding.

Suonama won't send new parts or make a refund, according to them the delivery company need first pay them and after that they can send new parts. And I should make it happen, even I'm not the shipper and the issue is just the Suonama's packing.

So, I won't recommend using this company's services to anyone.

I'm escalating this with PayPal, hopefully get some of my money back.

Next I'm probably going to test 4x2 parts, thank you Grischa for the info.