Can wheel bearings be repacked with grease on a 2002 SantaFe (frontand back) ?

[IlBeBauck]

Or, are the bearings a sealed unit ? Thanks.

 

[hyundaitech]

Or, are the bearings a sealed unit ?   Thanks.

Bearings are sealed. Replace only.

 

[IlBeBauck]

 Bearings are sealed.  Replace only

Thanks.