brake pad travel
Discussion
Does anyone know the typical brake pad/piston travel for a single pot road car brake caliper. The travel for the pad to come away from rest into contact with the disc for the pressure to then be applied.
I'm trying to design my pedal box and need to know a rough figure of pedal travel but don't have my brake hardware set up on my car yet so can't measure it and can't really visualise it in my head either. Half a mm maybe?
I'm trying to design my pedal box and need to know a rough figure of pedal travel but don't have my brake hardware set up on my car yet so can't measure it and can't really visualise it in my head either. Half a mm maybe?
I'd guess at less than that, but only fractionally.
When I did calcs to fit a different master cylinder I assumed the maximum disc run-out in the workshop manual at 0.004", and allowed 0.008" per caliper (quarter of a mm ?).
The pads are in sliding contact all the time you're not braking so I can't imagine a lot of movement at the seal, but like you I'd be interested if anyone has proper design figures to quote.
Brian
When I did calcs to fit a different master cylinder I assumed the maximum disc run-out in the workshop manual at 0.004", and allowed 0.008" per caliper (quarter of a mm ?).
The pads are in sliding contact all the time you're not braking so I can't imagine a lot of movement at the seal, but like you I'd be interested if anyone has proper design figures to quote.
Brian
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