Powder Metallurgy Gears (Ring Gears, Sprockets & Helical Gears)

Specifications

• Product Category: Precision Metal Transmission Components
• Tooth Profiles: Internal Ring Gears, Roller Chain Sprockets, Helical Gears
• Module / Pitch Range: M0.2 to M1.5 (Gears) / Standard & Micro Pitch Sprockets
• Standard Materials: Sintered Iron-based, Copper-infiltrated, and Alloy Steel Powders (Fe-Cu, Fe-Ni-Mo alloys)
• Secondary Treatments: Vacuum oil impregnation, case hardening / induction heat treatment, black oxide coating, electroplating
• Applications: Planetary Gearbox Internal Ring Gears, Roller Chain Drive Systems, Power Tool Gearboxes, Fitness Equipment Sprockets, Automotive & Industrial Actuators

Manufacturing Processes & Capabilities

• Near-Net Shape Tooling for Complex Profiles: Covers M0.2 to M1.5 modules utilizing multi-action compacting tooling and controlled-atmosphere sintering; accurately forms internal ring gear teeth, helical angles, and sprocket tooth pockets in a single compacting step with minimal dimensional shrinkage variance.
• Tight Concentricity & Helix Control: Precision compensation controls internal/external concentricity and helix angle tolerances, ensuring uniform load distribution and seamless mesh in planetary and helical systems.

Features & Advantages

• High Structural Strength & Shock Resistance: High sintered density delivers exceptional tensile and shear strength; ring gears resist hoop expansion, sprockets endure heavy chain tension shocks, and helical teeth prevent fatigue stripping under extreme torque.
• Quiet Transmission & High Contact Ratio: Progressive helical engagement increases tooth contact ratio to suppress metal whining and vibration; precision sprocket profiles provide smooth engagement without chain jumping.
• Self-Lubricating Porosity & Extended Wear Life: Microscopic pores hold impregnated lubricating oil, creating a continuous protective film during operation to minimize metal-on-metal friction and enable maintenance-free service.