how does oil disc break operation ?

Discussion in 'Mountain Bikes' started by Elaine, Apr 12, 2003.

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  1. Elaine

    Elaine Guest

    a floating mounting caliper oil disc break. how does it operation ?

    force the break pad to disc and then what force to let pad back "leave away from disc" after release
    the break ?
     
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  2. Hogmeister

    Hogmeister Guest

  3. Stu

    Stu Guest

    >If, for example, the diameter of the master cylinder is half as big as the diameter of the slave
    >cylinder, the force is quadrupled (however, the distance moved is reduced by 50%
    humm better make that 75% guys

    >Tech features: No compromise fully hydraulic disc brake. Open system with
    reservoir. Dual >piston fixed caliper with automatic pad wear adjustment.

    all hydraulic disc brakes that l have seen (mostly car brakes) have *automatic pad wear adjustment*

    now to answer your question my understanding of it is that the piston seals and what pulls the pad
    back remember you don't want them moving far from the disc
     
  4. elaine wrote:
    > a floating mounting caliper oil disc break. how does it operation ?
    >
    > force the break pad to disc and then what force to let pad back "leave away from disc" after
    > release the break ?
    >
    >

    It is the 'rubber seal' in the caliper that pulls the brake piston back away from the disk.

    The piston only 'moves' through the seal to compensate for brake pad wear.

    When the brake fluid level is perfect and the pads are brand new and just freshly ajusted, when you
    apply the brakes it is only the 'give' of seals holding the piston in the calipers that applies the
    brakes and then when releasing the brake the seal pulls the piston back.
     
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