Noticed this today on fleabay. A guy selling what he calls "Premium" wheel bearings. There is nothing "premium" about these for wheel bearings.
These have a metal shield and not meant to be ran anywhere that dirt or water comes in contact with. You might think the metal seal has to be better than rubber, right? Wrong! Because it's metal and can't possibly be completely sealed so there is provisions for water and dust to intrude into the bearing. The metal shield bearings also carry a lower RPM rating I suspect due to heat buildup, but I'm sure the guy selling these never looker at a bearing spec sheet.
Stick with the OEM rubber seals.
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These have a metal shield and not meant to be ran anywhere that dirt or water comes in contact with. You might think the metal seal has to be better than rubber, right? Wrong! Because it's metal and can't possibly be completely sealed so there is provisions for water and dust to intrude into the bearing. The metal shield bearings also carry a lower RPM rating I suspect due to heat buildup, but I'm sure the guy selling these never looker at a bearing spec sheet.
Stick with the OEM rubber seals.
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thanks for the heads up