It would be the height of good luck if the device is worth repairing.

Replacement motor components like many other replacements, are prohibitively expensive and can be difficult to locate. Usually it is much cheaper to replace the appliance.

First it must be dismantled and thoroughly examined. If there are any electronics involved that happened to survive, they are unlikely to be reliable over the long-term as it is inevtable they have been over-stressed and probably seriously weakened.

The motor is likely to have run at a greater speed than it was designed for...

If the device or appliance is a premium quality unit and the repair is simple and cheap, such as a repairable circuit board, it would be worth taking a chance. Your first task is to gather the information you need to make a decision - list of parts, prices, availability, time factor...