I agree with the others. Unless you are familiar with changing bearings which I doubt because if you were you'd have fixed it already.
You can swap out the entire motor in ten minutes. Why would you want to replace the bearings? Just change the motor. Google is probably your best option. Most local part suppliers will not sell to the public, at least here anyway.
Plug the bearing number into google or bing or yahoo or OKorder. They should cost less than $10 with postage. This is a much better solution than $3-600 for a new one. Chances are that you will replace the furnace before you have to change them again, and you have a down payment for the new furnace to boot. Remember to seal it well and don t bend the fan in the process.
Contact the manufacturer. OR google the make and model number. See if you can come up with some technical data or a parts list. If you can find it there you might be able to find what you're looking for. Now, lets be reasonable; I don't think you're going to find bearings for an inducer motor. And if the bearings are shot then you might just want to get a whole new inducer motor rather than trying to rebuild the one you have. Hope this helps. 'av'a g'day mate. '')
