Hub BearingAll products of Hub Bearing OD:42mm ID:30mm H:7mm (Steel) » Previous Model No EMA-HP6806-2RS Catalogue Steel Bearing Kits Key Features Bearing specification:Inside diameter:30mm - Outside diameter:42mm - Width:7mm (HP6806-2RS)Low noise. High speed. High temperature resistance.Both sides of the detachable single lip contact seal prevent contamination and maintain lubrication in the manufacturing process. Made inTAIWAN