how can i change or tighten the bearings on a hoover nextra condenser drier?

I've just taken mine apart today, full open surgery, I think there was only 6 screws that I didn't remove. Start taking top off then fbottom front panel, then front door panel (be careful of cables. remove white plastic infront of drum, then remove bar accroos drum, then remove rear cover and all central screws holding drum. Forgot you have to remove belt first by releasing tension on motor. Major job...

John
February 2008