I don't know how to call it in English...I do my best...I speak here German all the time, and my mother tongue is Spanish =)

Also...you take the bearing...it has an outer ring and and a internal ring...the balls are keep between those rings... The crankshaft goes through this internal ring. Where the seal meets this internal ring..it is only rubber there, elsewhere the seal is brass covered with rubber....


Maybe an image is better =)