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SEMIXICON DIASEMI | Diamond Composite Friction Shims for Robotic Joints

March21, 2026

 DIASEMI | Diamond Composite Friction Shims for Robotic Joints

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In high-precision robotics, joint stability defines system performance. Hidden within these joints, friction shims play a critical role in controlling wear, preload retention, and positioning accuracy. Traditional materials such as bronze and polymers suffer from rapid wear, thermal instability, and fretting fatigue—leading to frequent maintenance and precision drift.

SEMIXICON’s diamond composite friction shims redefine this interface.


By embedding micron-scale diamond particles (5–20 μm) into a metallic matrix via advanced electroplating, a unique micro-anchoring surface is formed. This structure combines the extreme hardness of diamond with the toughness of metal, delivering superior durability and stability under dynamic loads.


Key Performance Advantages:

  • Wear rate reduced by >98%

  • Fretting lifetime increased by 8×

  • Fatigue life improved by 30%

  • Preload retention >92%

  • Weight reduced by ~50%

Application Impact:

  • Improved positioning accuracy (up to 2×)

  • Maintenance cycle extended from months to years

  • Reduced thermal rise and vibration

From collaborative robots to high-load industrial systems, Diasemi enables longer life, higher precision, and lower total cost of ownership.


DIASEMI – Engineering the Invisible Interface.