It depends, if it is an older model from prior to 2012 that had the removable shaft (shaft spans from the back of the motor to the front housing and has a blue rubber bushing on either end) this shaft can be easily replaced and a new one runs about $8 with the disk and bushings. If it is a later one after 2012, the shaft is pressed in and not easily replaced. However, one of that age may well be a warranty issue as long as the shaft was not pulled or forced in some way.