quick explanation o...
 

[Closed] quick explanation of how bb7 brakes work ( ball bearing?) please

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thanks in advance


 
Posted : 04/04/2017 10:44 pm
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Can you fathom it out from this? About 20 seconds in:


 
Posted : 04/04/2017 11:24 pm
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thanks for that ..a little bit clearer now!


 
Posted : 05/04/2017 6:44 pm
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Three ball bearngs sit between two plates with dimples in them.

The divots are teardropped in shape and as the lever rotates the first plate rotates too the balls start climbing the ramps of the teardrop shapes forcing the plates apart this pushes the piston.

I've serviced a set before thought it was quite beautiful in its simplicity.


 
Posted : 05/04/2017 7:26 pm