Rear axle flanges

[Bob Culver]

I take it the parts simply separate and do not forcibly spring apart. As per Austin above it is only the tight fit of the bearing and any stickiness of the gasket which keeps them together. Bearings loose in the hub are a problem at the front but not of much consequence at the rear. If when clamped the hub can still be pulled in and out often indicates the felt spacer washer has been ommitted or the gasket too thick, a frequent cause of the bearings working loose in the hubs. The ability to pull the axle out a little at least confirms tht the hub has not been excessively lapped.
I dunno about Morris ones but some snail cams work loose on their shaft so have to fully back off and advance again to make adjustments.