what fit should the bearings on a sierra rear hub be. I am having my hubs machined for my super cheap bearings tomorrow and i need to know if its a sliding, slight push or a sucking fit

any views?

Froze my bearings and heated the hub to drop mine in, sucking fit !

Pig of a job to get the old ones out, ended up running a bead of weld across the surface to shrink the buggers

Regards Mark

IIRC they should be an 'interference' fit....but I don't have my book handy to tell by how much!

Light press fit, again can't say as zeus table is lost but your machine man should know what you want if you say light press fit.