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RST-FB090 Bronze-Wrapped Bearings

    Material Structure

    The bearings are wrapped of a cold formable homogenous bronze (CuSn8P0.3 & CuSn6.5P0.1), which will obtain exceptional material properties. The standard size are fitted with diamond shaped lubrication indents on the bearing surface. These indents serve as lubricant reservoirs to rapidly build up a lubrication film in the start movement and reduce the start friction.


Max. Load Static 120N/mm2   Hardness FB 110-150
Dynamic 40N/mm2 Elongation 40%
Max. Speed 2m/s Temp. -100℃~+200℃
Max. PV 2.8N/mm2.m/s Friction coefficient 0.08~0.25
Tensile strength 450N/mm2 Thermal conductivity 60W(m.K)-1
Yield point 450N/mm2 Coefficient of thermal expansion 15x10-6K



  1. The inside surface of the products inside surface is full of diamond oil indention, which can stock grease.
  2. Minim oil lubrication, can be applied in water-lubrication environment
  3. Good anti-abrasion, low coefficient of friction, long operating life.
  4. Can work consecutively at 100℃~+200℃.
  5. Good mending, low-noise, non-pollution.
  6. This wall, light, can reducing the volume of the machine.
  7. High density, high load, no alveoli.