The term ‘Bronze’ is used due to the appearance of the material; this is due to the high copper content of the composite. Also present in the composite are a number of raw materials such as copper powder, various metal powders and friction material. The production process involves the mixture of the powders, then moulding it into a mass using heat & pressure also know as sintering. Once the material is sintered to the steel core plate it’s then machined for the final thicknesses & groove patterns. Bronze materials are suitable for use in both wet & dry applications. These are typically found in applications such as power take-off clutches, marine gearbox, master clutches & steering clutches & auxiliary machinery. The following are properties that are associated with this type of material:

  • Good thermal stability
  • Good wear resistance
  • High and stable coefficient of friction
  • High mechanical strength
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Parameter Wet Application Dry Application
Dynamic Coefficient (μd) 0.04 – 0.09 >= 0.35
Static Coefficient (μs) >= 0.10 >= 0.40
Wear Rate (λ) <= 1.0x10-8cm3/J < 2.0x10-8cm3/J
Conditions of Application Specific Pressure: <= 9MPa Linear Velocity: <= 40m/s Oil Temperature: <= 200 ºC Specific Pressure: <= 4MPa Linear Velocity: <= 30m/s