Hub BearingAll products of Hub Bearing OD:37mm ID:20mm H:9mm (Steel) » PreviousNext » Model No EMA-HP6904-2RS Catalogue Steel Bearing Kits Key Features Bearing specification:Inside diameter:20mm - Outside diameter:37mm - Width:9mm (HP6904-2RS)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