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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #11  
Old 4 Weeks Ago
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Quote:
Originally Posted by bustert View Post
i think the b identifies it as a drawn cup
and the h identifies it as a harden cup or cage
Damn, you guys know a thing or two!
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  #12  
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i'm not convinced the Torrington needle bearing have a cup or a cage.tapered roller bearings do.
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the cam bearings are drawn cup. the cup holds the needles and provides the outside race and the needles ride the shaft for the inside race. the b is the identifier according to the nomenclature in their catalog.
some people call the cup a cage so i added that even though it is a wrong term, sorta like the dual vs single fire, some have diff views.
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