Feb
25
I am lookin for the static coefficient of friction btwn a bicycle rubber brake pad on an aluminum alloy rim?
I am working on a project where I need to know the static coefficient of friction between the brake pad and rim of a bicycle. I have been unable to find this online anywhere. Please add the source along with your response. Thanks!
The “static” coefficient of friction will depend on the force with which the pad is pressed to the rim. Your best bet would be to measure it, with a known pressure acting.
How? Attach a dial gauge or similar to the rim opposite the brake pads, and at the same distance from the axle. Apply the brake pressure required, then pull the gauge and note the reading just before the rim moves.
The rest is mathematics.
I’d wonder why you would need such a detail, though.
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