Sintered Bushing Reinforced Insert-Molded Plastic Gear

Manufacturing Processes & Capabilities

• Precision In-Mold Alignment of Sintered Hub: High-precision tooling fixtures rigidly clamp the sintered powder metal reinforcing hub via its bore and datum faces, ensuring micron-level concentricity and perpendicularity relative to the outer plastic gear pitch circle.
• High-Strength Insert Molding & Stress Regulation: Optimized mold flow gating and packing profiles ensure complete resin encapsulation around the hub's anti-rotation knurls/grooves, eliminating localized air traps and shrinkage stress for strong mechanical interlocking.

Features & Advantages

• Enhanced Load Capacity & Torsional Strength: The sintered metal hub absorbs direct shaft shear loads, high torque, and press-fit forces, completely preventing bore elongation, stripping, or cracking commonly seen in solid plastic gears under heavy duty.
• Optimal Metal Rigidity with Lightweight, Quiet Gearing: The sintered core delivers high rigidity and a durable bearing interface, while the plastic gear teeth provide vibration dampening, low meshing noise, and self-lubrication for extended service life.