Page 9 - Dana Glacier Bearings Materials Brochure, designed and produced by Connell Marketing Associates, UK
P. 9

Material Properties

                                    Glacier Vandervell’s production processes are strictly controlled to produce optimum
                                    microstructure to ensure the correct bearing properties for each application.

VP2                                 VP1                                     VP10                                  SY

Composition (SAE 49)                Composition                             Composition (SAE 792) Composition (SAE 792)

  Pb 23%                              Pb 17%                                Pb 10%                                Pb 10%
  Sn 1.5%                             Sn 5%                                 Sn 10%                                Sn 10%
  Cu remainder                        Cu remainder                          Cu remainder                          Cu remainder

           High Performance         VP2                                     VP10                                  SY
              Racing Bearings       VP2 is a lead-bronze material which     VP10 is a very high strength lead     SY is the sintered equivalent of
                                    is continuously cast onto steel strip.  bronze. Its load carrying capacity    VP10 and is used in similar
VP1 & VP2 lead-indium overlay       Casting and quenching conditions        and shock resistance mean that it is  applications, principally small
         plated cast lead-bronze    are controlled in order to produce a    an ideal small end bush material for  end bushes.
                                    microstructure with vertically          diesel engines and racing engine
    engine bearings have been       orientated bronze columns.              applications.
          fitted to every Indy 500  VP2 is overlay plated with either
         winning car since 1980.    lead-indium, lead-tin-copper, or
                                    lead-tin-alumina. Sputtered
    This combination of overlay     aluminium tin can also be specified.
 and substrate is the preferred     VP2 is used in many applications
                                    with high specific loads, such as
        option for all competitive  highly rated diesel and racing
       engine designs in the US     engines.

               Champ Car Series.    VP1
                                    VP1 differs from VP2 in its reduced
          Glacier Vandervell has    lead and increased tin content,
   supported most of the major      giving a higher load carrying
                                    capacity. VP1 is used unplated in
          Formula 1 Teams since     bush applications, and overlay
  winning the first Constructors    plated in very highly loaded half
Championship in 1958 with the       bearing applications.

          Vanwall Grand Prix car.

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