Hi all,

I'm having a head-scratching moment reassembling my rear wheel hub. I've fitted 30204 bearings with reduced thickness thrust washers. However, after fitting the bearing adjuster nut and its collar to the half-shaft, there's not enough thread for the locknut to go on fully. I assume that the right hand wheel spacer (between wheel and frame) should butt up against the end of the half-shaft, not 1/8" of overhanging lock nut. Before I take it apart again and start measuring, has anyone else encountered the same problem? 🤔

Craig, I have yet to tackle the 30204 conversion but looking at a wheel with original bearings the locknut does face with the wheel spacer. In this case that leaves a gap to the end of the half shaft of 0.053" with the wheel bearings adjusted. That's a hair or two under 1/16".

This BSA drawing does show the locknut protruding a little.




My wheel

email (option): rays54@hotmail.com

Hi Ray,

Thank you for this; it's reassuring. I'm building the bike from parts and didn't start with a complete hub for comparison. Hopefully I'll have the frame on its wheels at last this weekend.

My regards,

Craig

Ray

Craig, I have yet to tackle the 30204 conversion but looking at a wheel with original bearings the locknut does face with the wheel spacer. In this case that leaves a gap to the end of the half shaft of 0.053" with the wheel bearings adjusted. That's a hair or two under 1/16".

This BSA drawing does show the locknut protruding a little.




My wheel

email (option): pes.sales@btconnect.com