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Thread: Ball Bearings - Chrome Steel vs. Stainless Steel

  1. #1
    Look585 is offline VSalonistas
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    Default Ball Bearings - Chrome Steel vs. Stainless Steel

    Hi Smart People,

    I need to overhaul some XTR M900 hubs. Is there any real difference between "Chrome Steel" and "Stainless Steel" loose ball bearings. All the specs seems the same...

    Chrome Steel: Grade 25: Rockwell Hardness 60
    440c Stainless Steel: Grade 25: Rockwell Hardness 60

    Price is slightly (but immaterially) higher for the stainless. It seems that stainless would be better in the elements. Although I am made mostly of sugar these days and would melt if I ever rode in the rain...

  2. #2
    Bssc is offline VSalonistas
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    Default Re: Ball Bearings - Chrome Steel vs. Stainless Steel

    in the old days SS was too soft these days with super SS they are the same chose either and be just fine you can go one more easily available grade 10 bearings in ceramic or steel

    choice of grease is the real key that is what will preserve the finish on the balls and races

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    drietz's Avatar
    drietz is offline VSalonistas
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    Default Re: Ball Bearings - Chrome Steel vs. Stainless Steel

    Quote Originally Posted by Bssc View Post
    in the old days SS was too soft these days with super SS they are the same chose either and be just fine you can go one more easily available grade 10 bearings in ceramic or steel

    choice of grease is the real key that is what will preserve the finish on the balls and races
    What type of grease would you choose? Is there a go to? I think it depend on your riding environment.

    For people back East, I think a really heavy grease would probably be best, especially in the winter.

    For the more temperate roads here in the Bay Area, I've known some fair weather riders to pack their hubs with slick honey.

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