Industry-Verified Manufacturing Data (2026)

Polypropylene Injection Molded Gear Wheel

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Polypropylene Injection Molded Gear Wheel used in the Manufacture of Plastic Products sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Polypropylene Injection Molded Gear Wheel is characterized by the integration of Gear Hub and Tooth Ring. In industrial production environments, manufacturers listed on CNFX commonly emphasize Polypropylene (PP) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Precision plastic gear component manufactured via injection molding for mechanical power transmission.

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Product Specifications

Technical details and manufacturing context for Polypropylene Injection Molded Gear Wheel

Definition
A precision-engineered plastic gear wheel manufactured through injection molding processes, specifically designed for mechanical power transmission applications. This component serves as a critical element in various industrial machinery and consumer products where lightweight, corrosion-resistant, and cost-effective gearing solutions are required. It functions within larger assemblies to transfer torque and rotational motion between shafts while offering noise reduction and self-lubricating properties compared to metal alternatives. In B2B supply chains, these gears are supplied to OEM manufacturers across automotive, appliance, and industrial equipment sectors as standardized components for assembly integration.
Working Principle
Transmits rotational force through interlocking teeth that mesh with corresponding gears, converting input torque to output motion with specific speed ratios.
Common Materials
Polypropylene (PP), Glass-filled Polypropylene
Technical Parameters
  • Pitch diameter defining gear size and tooth spacing (mm) Standard Spec
  • Number of teeth determining gear ratio and rotational speed (teeth) Standard Spec
Components / BOM
  • Gear Hub
    Central mounting interface for shaft connection
    Material: Polypropylene
  • Tooth Ring
    Peripheral teeth structure for power transmission
    Material: Glass-filled Polypropylene
  • Reinforcement Ribs Optional
    Structural supports preventing deformation under load
    Material: Polypropylene
  • Keyway Optional
    Slot for mechanical key to prevent rotational slippage
    Material: Polypropylene
Engineering Reasoning
0-120°C temperature, 0-1500 RPM rotational speed, 0-50 N·m torque
Glass transition temperature of 105°C, yield stress of 35 MPa, fatigue limit at 10⁷ cycles under 15 MPa alternating stress
Design Rationale: Thermal degradation above glass transition temperature causing polymer chain mobility and creep, cyclic fatigue from alternating stress exceeding endurance limit leading to crack propagation
Risk Mitigation (FMEA)
Trigger Inadequate mold cooling causing residual thermal stresses of 8-12 MPa
Mode: Warpage exceeding 0.2 mm flatness deviation causing gear misalignment
Strategy: Conformal cooling channels maintaining 60±2°C mold temperature with 3-second cooling time per mm thickness
Trigger Polymer chain orientation anisotropy from 80 MPa injection pressure
Mode: Anisotropic shrinkage of 1.2-1.8% causing dimensional instability and tooth profile deviation
Strategy: Mold flow analysis optimizing gate location for balanced filling with 0.5-second packing phase at 40 MPa

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Polypropylene Injection Molded Gear Wheel.

Injection Molded Gear Plastic Drive Gear PP Gear Component Polymer Transmission Gear polypropylene injection molded gear wheel glass-filled PP plastic gear component precision plastic gear for power transmission custom injection molded gear hub industrial plastic gear wheel specifications

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max 50 MPa contact pressure, 0.5 MPa ambient
other spec: Max 3000 RPM, 98% efficiency at rated load
temperature: -20°C to 100°C continuous, 120°C peak
Media Compatibility
✓ Dry mechanical assemblies ✓ Lubricated gear systems (mineral oil) ✓ Clean air environments
Unsuitable: High-temperature steam (>120°C) or aggressive chemical exposure
Sizing Data Required
  • Torque requirement (Nm)
  • Operating speed (RPM)
  • Required service life (hours)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal degradation and warping
Cause: Excessive heat from friction or high ambient temperatures exceeding polypropylene's glass transition temperature (~0°C to 100°C), leading to dimensional instability and loss of mechanical properties.
Fatigue cracking and tooth fracture
Cause: Cyclic loading causing stress concentration at gear tooth roots, exacerbated by improper meshing, misalignment, or shock loads beyond polypropylene's fatigue strength.
Maintenance Indicators
  • Audible high-pitched squealing or grinding noises during operation indicating excessive friction or misalignment
  • Visual deformation or discoloration (yellowing/whitening) of gear teeth suggesting thermal overload or chemical degradation
Engineering Tips
  • Implement precision alignment during installation and maintain proper backlash (0.1-0.3mm typical for PP gears) to reduce stress concentrations
  • Control operating temperature below 80°C using cooling systems or intermittent operation cycles, and apply dry lubricants (PTFE/silicone based) compatible with polypropylene

Compliance & Manufacturing Standards

Reference Standards
ISO 1328-1:2013 (Cylindrical gears - ISO system of flank tolerance classification) ASTM D4101-17 (Standard Specification for Polypropylene Injection and Extrusion Materials) DIN 5480-1:2006 (Involute splines based on reference diameters)
Manufacturing Precision
  • Bore diameter: ±0.02 mm
  • Tooth profile deviation: ±0.05 mm
Quality Inspection
  • Dimensional verification with coordinate measuring machine (CMM)
  • Material verification via Fourier-transform infrared spectroscopy (FTIR)

Factories Producing Polypropylene Injection Molded Gear Wheel

Verified manufacturers with capability to produce this product in China

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P Procurement Specialist from Brazil Feb 28, 2026
★★★★★
"Great transparency on the Polypropylene Injection Molded Gear Wheel components. Essential for our Manufacture of Plastic Products supply chain."
Technical Specifications Verified
T Technical Director from Canada Feb 25, 2026
★★★★★
"The Polypropylene Injection Molded Gear Wheel we sourced perfectly fits our Manufacture of Plastic Products production line requirements."
Technical Specifications Verified
P Project Engineer from United States Feb 22, 2026
★★★★★
"Found 51+ suppliers for Polypropylene Injection Molded Gear Wheel on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

10 sourcing managers are analyzing this specification now. Last inquiry for Polypropylene Injection Molded Gear Wheel from USA (1h ago).

Frequently Asked Questions

What are the advantages of using polypropylene for injection molded gear wheels?

Polypropylene offers excellent chemical resistance, low moisture absorption, and good fatigue resistance, making it ideal for durable gear components in various industrial environments.

Can these gear wheels operate in high-temperature environments?

Standard polypropylene gears typically operate up to 100°C, while glass-filled polypropylene variants can withstand higher temperatures with improved dimensional stability and strength.

What customization options are available for the tooth profile and specifications?

We offer custom tooth profiles (including spur, helical, and bevel), various pressure angles, multiple module sizes, and tailored face widths to meet specific mechanical transmission requirements.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Manufacture of Plastic Products sector.

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