I have a spare rear wheel, without bearings. It seems there is a metric ball bearing equivalent for the hub. But when I measure with an inside mike I find 47 and 48 mm...
email (option): viaconsu # planet dot nl
Hi Hans..You can get a cheap, modern, taper roller bearing that fits right in to the M20 rear hub..The bearing number is 30204...Ian
email (option): ian@wright52.plus.com
Now I have a problem Ian; the outside-inside (am I a bit clear?) is 47mm, but the drum side is 48mm, so I am missing 1 mm....
Time to gear up my trusty old Myford, clean up the inside seat and make a ring, inside 47, outside 48+mm...
email (option): viaconsu # planet dot nl
I don't understand that Hans..The hub takes the same bearing both sides normally...Ian
email (option): ian@wright52.plus.com
Well, one side where the bearing sits in the hub is worn out. The holes where the pegs on the brake drum enter are also worn, and I suppose the bike has been driven without those three flange bolts properly tightened, and that has caused the wear.
So I have to bore that side of the hub from 48 mm to 49mm, then crimp/loctite an undersize ring and finally bring that to 47 mm.
Unless you have a better method
email (option): viaconsu # planet dot nl