BIV - MET® Cylindrical bushing BIZ

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    1. Inner dimension

    2. Outer dimension

    3. Length

    • BIZ.1215
    BIV-MET® is a wrapped bushing material consisting of a steel backing material and a bronze... more
    Product information "BIV - MET® Cylindrical bushing BIZ"

    BIV-MET® is a wrapped bushing material consisting of a steel backing material and a bronze sliding layer. It was originally developed as a more economical solution towards the BRO-MET® material, which is a full bronze wrapped bushing.

    Due to increasing copper prices and an increasing pressure to reduce production cost, BIV-MET® combines both advantages. The bronze sliding layer fulfils the demand on a wear resistant sliding material and the steel is a common backing material, catering to the need for lower production costs.

    BIV-MET® is like all wrapped bushings, manufactured to DIN 1494 / ISO 3547 and the sizes are the same as for the BRO-MET® series.
    The only difference is in the bronze alloy which the BRO-MET is a CuSn8 alloy whereas for BIV- MET®, CuPb10Sn10 is being used.

    CuPb10Sn10 is a higher lead content giving it a better advantage for higher rotational speeds. Also, the BIV-MET® sliding layer has lubrication pockets that are also suitable for oil lubrication and thus allowing this bushing material to run at much higher rotational speeds.

    The disadvantage of BIV-MET® on the other hand is that once the bronze layer is worn off, the shaft will run against the steel backing of the bushing. Vice-versa, BRO-MET has a much longer working life provided that a bigger gap between shaft and bushing is acceptable for the application.
    Most commonly BIV-MET® is used in track rollers, truck brakes and agriculture machinery.

    Sliding surface: CuPb10Sn10
    Support material: Steel, copper or tin plated
    Dynamic load: ≤ 140 N/mm²
    Static load: ≤ 250 N/mm²
    Sliding speed: ≤ 2,5 m/s, ≤ 5m/s oil lubricated
    Fricition value: 0,04 - 0,12 µ
    max. PV-value: 2,8 N/mm² x m/s
    Temperature strain: -40 up to +250 °C
    Maintenance: maintenance-bound
    Tolerance housing: H7
    Tolerance after mounting: H9
    Shaft tolerance: f7 up to h8
    Shaft material: Steel, hardened or untempered, roughness Rz ≤ 6,3
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