Bearings are sold individually and not in pairs.

See more info below regarding the CN clearance specification of this bearing. Note that this wheel bearing has a grey "LLU" outer seal that is a medium contact double-lip seal to help keep contaminants out. The black inner seal (faces toward the inside of your hub) is an "LLB" light contact double-lip seal.

"61001 LLU-LLB" bearing. Best all steel bearing for wheel hubs.

DIMENSIONS ....... 12mm x 28mm x 8mm
INTERNAL CLEARANCE RATING: CN (tigher clearance best for looser press fit applications)
SEALS ...... "LLU" outer and "LLB" inner BALL MATERIAL .....Chromium Steel
BALL GRADE ............... 5
RACES ........ Chromium Steel
APPLICATION .... Wheel Hub
GREASE ... Realube Bearing Compound