Bearings are sold individually and not in pairs.

"MR 18307 LLU/LLB" bearing. Best all steel bearing for wheel hubs. 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.

NOTE: DT SWISS SOMETIMES USES THIS BEARING AND INCORRECTLY MARKS IT AS A 6902 BEARING.

DIMENSIONS ....... 18mm x 30mm x 7mm
SEALS ...... "Dual Seal" Grey LLU outer seal and Black LLB Inner Seal
BALL MATERIAL .....Chromium Steel
BALL GRADE ............... 5
RACES ........ Chromium Steel
APPLICATION .... Wheel Hub
GREASE ... Realube Bearing Compound