Bicycle bottom brackets: Difference between revisions
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{{Parts infobox | {{Parts infobox | ||
|image | |image = Adapter-bicycle-bottom-bracket.png | ||
|designer | |designer = [[User:Tim|Timothy Schmidt]] | ||
|date | |date = 2020 | ||
|vitamins = | |vitamins = | ||
|materials = | |materials = | ||
|transformations = | |transformations = | ||
|lifecycles = | |lifecycles = | ||
|tools | |tools = [[3D printers]] | ||
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Revision as of 10:57, 26 May 2021
Introduction
The bottom bracket on a bicycle connects the crankset (chainset) to the bicycle and allows the crankset to rotate freely. It contains a spindle to which the crankset attaches, and the bearings that allow the spindle and cranks to rotate. The chainrings and pedals attach to the cranks. Bottom bracket bearings fit inside the bottom bracket shell, which connects the seat tube, down tube and chain stays as part of the bicycle frame.
Challenges
Approaches
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Bicycle bottom bracket adapter CAD
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Bicycle bottom bracket adapter left side
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Bicycle bottom bracket adapter right side
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Cranks installed
Parts
SHIMANO UN55 BB Square Taper Bottom Bracket
