SRAM Dub Bottom Bracket 83mm DH Sleeve
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A SRAM Dub bottom bracket sleeve for 83mm Dub DH bottom brackets.
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Model information
- Source
- Printables
- Category
- Outdoor Sports
- License
- Creative Commons — Public Domain
My LBS doesn't seem to carry the 83mm Dub DH bottom bracket option, largely because they don't use the plastic sleeve with o-rings, designed to protect the crank spindle and BB bearings from water/dirt ingress.
However, I DO like to use the sleeve as I've found it helps keep the bearings from premature wear, even when dirt, water or dirty water makes its way inside a frame.
Because my LBS stocks the fat bike and regular road/mountain versions, I thought I'd make a sleeve that can be 3D printed. O-rings can be moved from the SRAM sleeve to the printed sleeve.
So, here it is!
Printing
Due to the very small size of some of the features of this part, it needs to be printed with a 0.2mm nozzle. I printed it in PETG with minimal shrinkage. I recommend a 5mm outer brim, but with increased spacing from the part (0.15mm in my case).
Additionally, I had trouble with the lower o-ring groove breaking apart at the layer lines when I tried to remove the print from the print bed. I had to use the dynamic layer height feature of my slicer to create the smallest layers possible for the lower portion of the part.
YMMV.