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RGB guide bushing, straight type, SO#50SP2 bronze with graphite

Material Specs


Oilless Guide Bushing


  RGB guide bushing, straight type, SO#50SP2 bronze with graphite  

RGB guide bushings consist of highly wear-resistance copper cast alloy whose sliding surfaces are evenly provided with a certain percentage of solid lubricant plugs according to work condition, high-strength copper alloy provides a high load-bearing capacity and the solid lubricant can be formation of low friction film.

Under technical dry running conditions, the bearing surface is designed with thick running-in film which
enables the solid lubricant to be transferred to the counter material at the first contact.


①  Solid lubricant film
②  Solid lubricant plug
③  Bronze backing

Material Features
  • Allows maintenance-free and long-life operation;
  • Suitable for high static and dynamic loads;
  • With low and smoothly coefficient of friction and without stick-slip effects;
  • Suitable for dirty, corrosion, impact load and edge loading;
  • The base material provided a good shock-absorbing capacity;
  • Can be used over a large temperature range;
  • Suitable for reciprocating, rotating and oscillating movement with start frequency
    and difficulty to form oil film occasions;
  • With low wear rate and long life service.

How It Works ?

When the mutual friction occurs between two non-lubricated surfaces, the two contacts with the uneven surface of the peak by the shear, stick-slip
and plastic deformation giving rise to friction and wear. Conventional lubricants can significantly reduce these effects, however, the conventional
lubricant will be more and more squeezed out of the contact area with increasing surface which formed the dry friction or boundary lubrication.

With RGB guide bushings, the lubrication is effected by the sliding material itself, The solid lubricant is released from the friction
material by micro-movement. This gives the sliding partners smooth surfaces with a firmly adhesive solid lubricant film, the solid lubricant film
remains within the contact area even under heavy loads. The embedded solid lubricant plugs can be continuously provided to the friction surface
to reduce friction resistance and wear, thus make the bearing can be worked under low wear rate and long-life service.

Typical Applications

The product is widely used in
  • continuous casting rolling machine
  • mining machinery
  • shipping machinery
  • turbine
  • injection machinery
  • auto mould and so on...

  RGB guide bushing, straight type, SO#50SP2 bronze with graphite --- Metric Size 













































RGB-1209  RGB-1214  RGB-1219  RGB-1224  RGB-1614  RGB-1619  RGB-1624  RGB-1629  RGB-1634  RGB-1639  RGB-2014  RGB-2019  RGB-2029  RGB-2034  RGB-2039  RGB-2049  RGB-2524  RGB-2529  RGB-2534  RGB-2539  RGB-2549  RGB-2559  RGB-3029  RGB-3034  RGB-3039  RGB-3049  RGB-3059  RGB-3069  RGB-3079  RGB-3529  RGB-3534  RGB-3539  RGB-3549  RGB-3559  RGB-3569  RGB-3579  RGB-4039  RGB-4049  RGB-4059  RGB-4069  RGB-4079  RGB-4089  RGB-5049  RGB-5059  RGB-5069  RGB-5079  RGB-5089  RGB-5099  RGB-6059  RGB-6069  RGB-6079  RGB-6089  RGB-6099  RGB-60109  RGB-8069  RGB-8079  RGB-8089  RGB-8099  RGB-80109  RGB-80119