A bicycle bottom bracket assembly comprises an adapter and a bearing. The adapter has a cylindrical shape and extends along a center axis of the adapter. The adapter comprises a resin material. The bearing comprises rolling elements and an outer race. The outer race is configured to contact the rolling elements and is configured to be provided in the adapter. The outer race is partly embedded in the adapter to be prevented from moving relative to the adapter in both axial directions along the center axis.
BICYCLE BOTTOM BRACKET ASSEMBLY
2016-03-24
Patent
Electronic Resource
English