This precision injection-molded gearbox housing is engineered for reliable performance in small gear motors and actuators. Manufactured via high-precision injection molding with optional insert molding technology, it integrates gear cavities, mounting posts, positioning holes, and sealing structures in one compact unit for exceptional dimensional stability and structural strength.
Made from high-performance engineering plastics including PA66 GF, POM, and PP GF, the housing offers excellent wear resistance, heat resistance, and long service life. It is widely applied in home appliances, automotive electronics, smart home devices, and energy storage equipment.
We support custom mold development, material selection, and structural optimization to meet client-specific requirements. Strict quality control ensures consistent production, low noise, and stable assembly. Ideal for OEM/ODM mass production with reliable delivery and professional technical support.
Item | Detail |
Product Name | Precision Injection Molded Gearbox Housing / Gear Motor Plastic Gear Seat |
Core Process | Precision Injection Molding (Insert Molding Optional) |
Application Fields | Home Appliances, Automotive Electronics, Smart Home, Industrial Automation, Energy Storage Equipment Matching |
Customization Services | Custom Mold Opening, Material Customization, Size Customization, Insert Integration Support |
Supply Mode | Mass Production, OEM/ODM Contract Manufacturing |
Core Structural Design
Integrally Molded Housing: Adopts an integrated injection-molded structure that integrates complex features such as gear cavity, mounting posts, positioning holes, reinforcing ribs, and sealing grooves. It eliminates secondary splicing, ensuring higher structural strength and smaller assembly tolerance.
High-Precision Shaft Seat: The central metal output shaft seat (insert) delivers high coaxiality precision, guaranteeing motor operation stability and reducing transmission noise and wear.
Optimized Rib Layout: Lightweight reinforcing ribs are designed inside the housing to maintain structural rigidity and impact resistance while controlling product weight and material costs.
Standardized Mounting Interface: Pre-configured with multiple mounting holes and positioning structures to adapt to universal gear motor/actuator assembly requirements; custom exclusive interfaces are available per customer drawings.
Sealing & Protection Design: The gear cavity features an annular sealing groove to match sealing rings for enhanced IP protection, suitable for humid and dusty working conditions.
Design Advantages
Integral molding reduces assembly procedures, lowering customer’s assembly costs and failure rates.
Structural design optimized via mechanical simulation, offering high impact resistance and aging resistance for long service life.
Supports customized integration of sensors, wire harness fixing points, and other components to align with customers’ complete machine design.
High surface finish and excellent appearance consistency, meeting the high aesthetic demands of high-end home appliances and automotive products.
Core Process
Precision Injection Molding: High-precision molds and injection equipment are used to form complex structures in one go, with dimensional tolerance controllable within ±0.02mm to meet precise transmission requirements.
Insert Molding (Optional): Metal shafts, copper sleeves, threaded inserts, etc., can be pre-placed in the mold and integrally injection-molded to avoid loosening risks from secondary press-fitting and improve structural reliability.
Secondary Processing (Optional): Supports post-processing procedures such as ultrasonic welding, deburring, surface spraying, and ultrasonic testing to meet customer-specific customization needs.
Parameter | Standard Specification | Customization Range |
Dimensional Tolerance | ±0.02mm | Customizable to ±0.01mm for high-precision tolerance |
Applicable Motor Power | 10W-200W (Standard) | Customizable for higher power |
Operating Temperature | -40℃ ~ +85℃ (Standard Material) | Customizable for high/low temperature-resistant materials |
Protection Level | IP54 (Basic) | Customizable up to IP65 and above |
Molding Cycle | 30-60s/pc (Mass Production) | Adjustable based on product complexity |
Minimum Order Quantity | 1000pcs (Mold Opening) / 5000pcs (Mass Production) | Negotiable for small-batch trial production |
Material Type | Core Features | Application Scenarios |
Reinforced PA66 (Nylon + Glass Fiber) | High strength, high toughness, wear resistance, and aging resistance | Automotive, industrial automation, energy storage equipment |
POM (Polyoxymethylene) | High rigidity, low friction, and excellent dimensional stability | Precision transmission, home appliance motors, smart home |
PP + Glass Fiber | Lightweight, chemical corrosion resistance, and cost-effectiveness | Civilian home appliances, low-load scenarios |
ABS | High gloss, easy processing, and impact resistance | Home appliances and consumer electronics with high appearance requirements |
Special Engineering Plastics (PEEK/PA12, etc.) | High temperature resistance, corrosion resistance, and ultra-high strength | New energy, medical equipment, high-end industrial applications |
All raw materials comply with RoHS and REACH environmental protection standards, with material reports and environmental certifications available.
Supports material modification (e.g., flame retardancy, UV resistance, conductivity) to adapt to special working conditions.
Provides material selection and structure optimization suggestions based on customers’ actual usage environments.
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Packaging: Neutral cartons with EPE foam protection, or custom branded packaging as required, to prevent damage during transit.
Lead Time: Mold development: 15-25 working days; Mass production: 7-15 working days (adjustable based on order quantity).
Payment Terms: T/T, L/C, and other standard international trade terms supported.
Logistics Options: DHL, FedEx, sea freight, air freight, and other global shipping solutions available.
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