Sintered Bronze Pinion Insert-Molded Plastic Gear

Manufacturing Processes & Capabilities

• Precision In-Mold Alignment of Sintered Bronze Pinion: Tooling fixtures locate and rigidly clamp the sintered bronze pinion via its bore and tooth roots, maintaining tight concentricity and accurate tooth phasing relative to the outer plastic gear.
• Low Thermal-Stress Insert Molding: Injection molding temperatures and packing pressure profiles are precisely regulated to compensate for the high thermal conductivity of copper alloys, preventing localized interface stress and tooth shrinkage distortion.

Features & Advantages

• Self-Lubrication, Wear Resistance & Corrosion Resistance: The sintered bronze pinion features self-lubricating oil-impregnation and excellent corrosion resistance, delivering low frictional resistance and prolonged durability under high-speed motor inputs.
• Quiet Transmission & High Torsional Bonding Strength: The plastic gear dampens meshing vibration for quiet operation, while the mechanical knurling/grooving on the bronze pinion ensures superior torsional shear resistance between the metal and plastic components.