calypso said:
And if the customer wants to take their own chances? I'm sure most would use a swop out as it's much quicker then removing, going to the shop, drilling and bringing back. No one wants to leave their car in pieces while waiting on parts.
But if you want to copy the Beisan Systems hub why can't you share your findings with the forum so as to enrich the forum.
Don't be that guy that torrents a file and never seeds back.
I need to correct your impression and as I was the one intimately involved with having the holes re drilled allow me to impart my thinking.
The Beisan hub was not copied although the Beisan principle was applied and I am sure that the Beisan info is at large and no longer proprietary knowledge.
Have a close look at the hub and the surface area surrounding the factory drilled holes.
You will notice upon close observation that the tabs surface have scored the surface of the hub.
That implies that each hub needs to be measured and the holes need to be drilled a corresponding size to the wear on the tabs.
Each tab in other words has holes drilled to its specific size.
Therefore there is no such thing as a standard size to fit in all applications.
The spacing between the holes can easily be determined from the existing dimensions and if one is technically capable a vernier is a tool known to one.
So no such thing as not seeding the torrent but more an awareness that different units will have been exposed to different wear patterns and each may require a different diameter hole being re drilled .
Should you need more info please pm me and I shall try and assist wherever possible.