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ROD & MAIN BEARINGS // CAM BEARINGS // THRUST WASHERS // PISTON PIN BUSHINGS

Coated

Self-lubrication, Wide Temperature Range and High fatigue Strength Coating Technology

Properties Comparisons

Comparisons of frictional coefficient at room temperature under dry sliding wear

Comparisons of  frictional coefficient at 150 °C / 302 °F under dry sliding wear

Comparisons of  frictional coefficient at room temperature under oil

Comparisons of  frictional coefficient at room temperature under oil

Ternary plating coating polymer coating

Under the condition of oil lubrication at room temperature, the friction coefficient of polymer coating decreased by 42.3 % compared with that of ternary electroplating, and the friction coefficient decreased by 36 % under the condition of oil lubrication temperature rise. Under the condition of dry friction at room temperature, the friction coefficient of the polymer coating decreased by 75.86 %, and the friction coefficient of the polymer coating decreased by 91.69 % under the condition of dry friction temperature rise.

Friction work decreased by 8.1 %, friction reduction and carbon reduction.

Coating performance – Adhesion Test

  • The coating layer can work under wide range temperature from -170 to 220 °C / 338 to 448 °F for a long time.
  • The coating has good adhesion. 

Coating Performance

Adhesion Bending Test

First draw the grid, then heating the sample with oil up to temperature to 150 °C / 302 °F for 15 minutes

Then to bend the sample 360° without coated layer spalling.

Coating Performance

Fatigue Strength

Time

Morphology after 98MPa

(14214 psi)

Morphology after 113MPa

(16389 psi)

Engine Bearing Polymer Coating

Stop and Start Engines Applications

φ50 mm gasoline engine bearings

  • Coating material : HY-002
  • Fatigue strength : 12473 to 13779 psi
  • Fatigue service temperature : –94 to 428 °F
  • Dry friction coefficient : 0.08
  • Coating thickness : 10 ± 2μm
  • Oil lubrication friction coefficient : 0.045
  • The main components of the coating : modified PI, high molecular weight epoxy resin, MoS2, carbon nanotubes, etc.
  • Use occasions : small and medium-sized for engines with stop and start function.

Engine Bearing Polymer Coating

Replacing Traditional Electroplating Bearing

  • Coating material : HY-003

  • Fatigue strength : 80 to 90 MPa ( approximately 70 MPa instead of ternary plating )

  • Fatigue service temperature : -70 to 220 °C

  • Dry friction coefficient : 0.11

  • Coating thickness : 10 ± 2μm

  • Oil lubrication friction coefficient : 0.05

  • The main components of the coating :
    Modified PI, high molecular weight epoxy resin, PTFE, micro-nano Zn, TiO2, etc.

  • Use occasions : to replace traditional 3 elements overlayer planting for pollution reduction.

φ74 mm gasoline engine bearings