Why do you want to use tapered bearings with the spool. If it is because you are using stock axles in the spool -DON'T-. Spools lead to too mush twist for a stock axle leading to breakage and if you go to the track and they find OEM axles you will be sent home. In short: be safe use after market axles with green bearings.
Clean it, if it's Dirty. Oil it, if it Squeaks.
But: Don't fix it, if it Works!
In short: be safe use after market axles with green bearings.
