Remove the screws from the rear shaft cover.This is a condenser dryer ,the tumble dryer is the same.

Some have this type of rear shaft cover,the screws are circled.

Remove the pin so the coller can be removed.

This is the teardrop type of bearing.

This is the square type. Part No 1703014(C00113862) 2 part numbers for the same part.

This is the teardrop type.Part No 1703436 (C00142628) 2 part numbers for same part.

Remove the rear bearing by removing the screw(if it`s the square type then it will have to be teased out with a small screwdriver) and inspect the shaft.If the shaft is ok then fit a new bearing.If the shaft is damaged then a new shaft will be needed . A fill stripbown is shown in fitting v4kit . Refit in reverse order.