The Sintered Pinion Gear is a high-precision power transmission component engineered using advanced Powder Metallurgy (PM) technology. Designed for critical applications in automotive systems and industrial machinery, these gears offer exceptional dimensional accuracy and consistent quality. By compacting metal powders into precision molds followed by high-temperature sintering, we achieve complex tooth profiles and integrated features that significantly reduce the need for secondary machining, ensuring a cost-effective solution for high-volume production.
Optimized for durability and performance, our sintered pinion gears are available in iron-based, alloy steel, and copper-based materials. Through specialized heat treatments such as carburizing and induction hardening, these components exhibit superior surface hardness and fatigue strength. Their unique microstructure not only ensures smooth meshing for reduced noise and vibration but also allows for lubricant retention within the porous structure, extending the operational lifespan of the gear in demanding automotive and electromechanical environments.
Detailed Parameters
| Manufacturing Tech | Powder Metallurgy | Surface Treatment | Quenching, Polishing |
|---|---|---|---|
| Material Standards | MPIF 35, DIN 30910, JIS Z2550 | Density Range | 6.2 - 7.1 g/cm3 |
| Macro Hardness | 40 - 80 HRA | Tensile Strength | 1650 Mpa Ultimate |
| Yield Strength | 1270 Mpa Ultimate (0.2%) | Product Size | Customized Size |
| Common Materials | Iron-based, Alloy Steel, Copper | Application | Automotive, Industrial, Toys |
Key Advantages
Superior Hardness
Advanced heat treatments like carburizing ensure extreme wear resistance and high fatigue strength for heavy-duty loads.
High Efficiency
Powder metallurgy allows complex geometries in one step, drastically reducing material waste and production time.
Precision Accuracy
Tight tolerances and uniform material distribution ensure reliable repeatability across mass-produced batches.
Noise Reduction
Fine microstructure and precise tooth geometry enable smooth meshing, ideal for quiet-operation systems.
Self-Lubrication
The controlled porous structure retains lubricants, reducing friction and extending the service life of the gear.
Cost Effective
Significant cost reduction compared to traditional machining, especially for large-scale automotive OEM orders.
Product Gallery
Management Platforms
Material Blending
Strict control over metal powder composition to meet specific mechanical and performance requirements.
Precision Compaction
High-pressure molding ensuring precise tooth profiles and integrated internal structures.
Thermal Control
Controlled high-temperature sintering for optimal particle bonding and structural density.
Hardening Process
Induction hardening and sinter-hardening to balance surface hardness with a tough core.
Quality Sizing
Post-sintering sizing and finishing to achieve ultra-tight tolerances for automated assembly.
Impregnation
Oil and steam impregnation for enhanced corrosion resistance and lifelong lubrication.
Investment Return Comparison
| Performance Metric | Traditional Machining | Sintered PM Technology |
|---|---|---|
| Material Utilization | Low (High Waste) | Very High (Near Net Shape) |
| Production Speed | Slow (Step-by-step) | Fast (High-volume mass prod) |
| Dimensional Stability | Variable | Highly Consistent |
| Secondary Machining | Extensive | Minimal to None |
| Total Unit Cost | High | Significant Reduction |
Frequently Asked Questions
Sintered gears offer higher material utilization, lower production costs for high volumes, and the ability to create complex geometries without extensive secondary machining, while providing superior noise control.
Iron-based powders are most common due to their strength-to-cost ratio, often alloyed with nickel, molybdenum, or copper to enhance hardness and fatigue strength.
Processes like carburizing and induction hardening increase surface hardness for wear resistance while maintaining a tough core to resist impact and cyclic loads.
Yes, through precise tooth geometry and optimized sintering densities (6.2 - 7.1 g/cm3), they are ideal for starter motors, window regulators, and electric drive units.
Oil impregnation fills the controlled pores of the sintered material, providing built-in lubrication that reduces friction and extends the part's service life.
While PM is most cost-effective for mass production, we offer customized sizes for various applications, including air conditioning motors and children's toys.
