Ready Steady Eddy

[EddyCurrent]

Jonathan said he won't use BK12 bearings and I think he's half right.
The housings seem to be okay provided they are dimensioned correctly for the bearings used, but it's the supplied bearings themselves that are extremely suspect.
I just stripped a couple out, one had Japan bearings the other China bearings, one had the bearings facing opposite directions, one had both bearings facing the same direction (keep in mind these are angular contact bearings), the China bearings had no grease whatsover in them.
So it's a good job I stripped them down but now they have to be sorted out.
First I had to understand about AC bearings so found this;

Bearings for universal matching
Internal clearance and preload
(click on the 'table' links near the bottom)

Now I understand I need to reassemble according to those diagrams but can't decide if Fig2 or Fig3 arrangement (see first link above) is best, opinions please.

Edit: After reading this
http://www.mycncuk.com/forums/linear...her-apart.html I'm thinking Fig2.

and this
http://www.mycncuk.com/forums/linear...end-float.html