syncrosfan
Senior Retro Guru
Re: Proof you can polish a Turd (Schwinn FS)
"appeared to use the same sized bearings and configuration as the Grafton" it would be possible that it was a regular (single row bearing) setup, Syncros made those too. The only difference between the two is: the double row bearing is 10mm wide as opposed to the 7mm of the single row bearing. Looking at the spacer setup, you could fit double row bearings if you wanted to, just leave the big spacers out. Now of course you have the BB in the bike so it would be pointless to faff about double row bearings, maybe something to consider when the bearings crap out. Double row bearings are also more expensive (at about 30$ a piece). Don't put too much preload on the bearings, regular radial bearings are not made to take a lot of axial loads and it will lead to a premature bearing failure (unless you have angular contact bearings, in that case they're meant to be preloaded, but those are more expensive than regular bearings and unlikely to have been used).
"appeared to use the same sized bearings and configuration as the Grafton" it would be possible that it was a regular (single row bearing) setup, Syncros made those too. The only difference between the two is: the double row bearing is 10mm wide as opposed to the 7mm of the single row bearing. Looking at the spacer setup, you could fit double row bearings if you wanted to, just leave the big spacers out. Now of course you have the BB in the bike so it would be pointless to faff about double row bearings, maybe something to consider when the bearings crap out. Double row bearings are also more expensive (at about 30$ a piece). Don't put too much preload on the bearings, regular radial bearings are not made to take a lot of axial loads and it will lead to a premature bearing failure (unless you have angular contact bearings, in that case they're meant to be preloaded, but those are more expensive than regular bearings and unlikely to have been used).