Eddie Stafford Posted June 15, 2020 Share I need 6803 - C3 bearings to rebuild an American Classic rear hub. The supplier says he can get 6803 bearings, but not the C3. The 6803 bearing size is standard 17 x 26 x 5 mm. Does the C3 play a role and if so what? Thank you. Link to comment Share on other sites More sharing options...
BaGearA Posted June 15, 2020 Share I was totally wrong... Whoops Edited June 15, 2020 by BaGearA Eddie Stafford 1 Link to comment Share on other sites More sharing options...
TNT1 Posted June 15, 2020 Share Technical details (C3) C3=Internal Clearance Larger Than Normal. Bore C - Cylindrical BoreRadial Internal Play C3 Internal Play (Higher than Cn) Edited June 15, 2020 by TNT1 Eddie Stafford 1 Link to comment Share on other sites More sharing options...
Eddie Stafford Posted June 15, 2020 Share Technical details (C3) C3=Internal Clearance Larger Than Normal. Bore C - Cylindrical BoreRadial Internal Play C3 Internal Play (Higher than Cn) Thank you, I found this that explains the Internal Clearing. https://blog.slsbearings.com.sg/why-is-normal-clearance-no-longer-the-normal They say C3 is slightly larger than normal. So I wonder if I can use Cn rather than C3 in the hub. Link to comment Share on other sites More sharing options...
DieselnDust Posted June 15, 2020 Share C3 works in high speed applications like smal engines or electric motors driving industrial gearboxes. The clearance allows for luricating oil to circulate.You are better off with a bearing of tighter clearance Eddie Stafford 1 Link to comment Share on other sites More sharing options...
100Tours Posted June 15, 2020 Share I need 6803 - C3 bearings to rebuild an American Classic rear hub. The supplier says he can get 6803 bearings, but not the C3. The 6803 bearing size is standard 17 x 26 x 5 mm. Does the C3 play a role and if so what? Thank you. Make him an offer? - he has the ceramic version of the bearing you're looking for (2nd image)https://bikehub.co.za/classifieds/item/road-bike-hubs/1865/ceramic-bearing-full-kit-for-american-classics Eddie Stafford 1 Link to comment Share on other sites More sharing options...
Eddie Stafford Posted June 15, 2020 Share Make him an offer? - he has the ceramic version of the bearing you're looking for (2nd image)https://bikehub.co.za/classifieds/item/road-bike-hubs/1865/ceramic-bearing-full-kit-for-american-classics Thanks, but I live in Mauritius. I will go for the normal 6803 and I am sure it should be OK. Link to comment Share on other sites More sharing options...
DieselnDust Posted June 15, 2020 Share Thanks, but I live in Mauritius. I will go for the normal 6803 and I am sure it should be OK. bog standard 6803 RS deep groove bearings. That's all you need. MudLark and svacha 2 Link to comment Share on other sites More sharing options...
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