ORIGINAL: AussiePilot
Xjet i had spoke with the company i boaught the bearings and this is what they said
"Seals and shields are situated between the inner and outer rings of the bearing. The purpose of seals and shields are to protect the inside of the bearing from contaminants and to help prevent the leakage of lubricant from the bearing.
He said that bearing is for that motor......and said he has had no troubles in the past...
Clearly, based on your pictures, the replacement bearing is *not* the same as the original.
Do not use it. If your supplier says it's the same then ask why is it a different size.