---
title: "Reduction Gears"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:REDUCTION_GEARS"
  data_integrity_hash: "e93498777fc9c964e1efd879d7c5cdbf"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:REDUCTION_GEARS"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/reduction-gears.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/reduction-gears"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "Input speed: 1000-5000 RPM, Output torque: 50-500 N·m, Temperature: -20°C to 120°C, Lubrication pressure: 0.2-0.5 MPa"
    unit: "ratio"
engineering_limits:
  max_safe_operating_point:
    value: 300
    unit: "MPa"
    consequence: "Hertzian contact stress exceeding material yield strength causes pitting failure (ISO 6336-2), Thermal expansion mismatch between steel gears (α=11×10⁻⁶/°C) and aluminum housing (α=23×10⁻⁶/°C) creates binding at ΔT&gt;80°C, Lubricant film thickness &lt;0.1 μm (Stribeck curve) leads to boundary lubrication and adhesive wear"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Misalignment exceeding 0.05 mm/m (ISO 1328-1) during assembly"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Laser alignment system with 0.01 mm precision and tapered roller bearings with C0 clearance grade"
  - node_2:
      trigger: "Contaminant particles &gt;15 μm (ISO 4406:1999 Class 18/16/13) in lubricant"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Magnetic filtration system with 5 μm absolute rating and desiccant breather maintaining ISO 8573-1:2010 Class 1 air quality"
bom_nodes:
  sun-gear:
    type: "component"
    urn: "URN:CNFX:ME:SUN_GEAR"
    interface_type: "physical-logic-coupled"
  planet-gears:
    type: "component"
    urn: "URN:CNFX:ME:PLANET_GEARS"
    interface_type: "physical-logic-coupled"
  ring-gear:
    type: "component"
    urn: "URN:CNFX:ME:RING_GEAR"
    interface_type: "physical-logic-coupled"
  planet-carrier:
    type: "part"
    urn: "URN:CNFX:ME:PLANET_CARRIER"
    interface_type: "physical-logic-coupled"
  input-shaft:
    type: "component"
    urn: "URN:CNFX:ME:INPUT_SHAFT"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 1328-1:2013 CYLINDRICAL GEARS - ISO SYSTEM OF FLANK TOLERANCE CLASSIFICATION"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/AGMA 2000-A88 GEAR CLASSIFICATION AND INSPECTION HANDBOOK"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/reduction-gears.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "835a5e755944603e58c500b802a5752dcdfdf9d87ebbb9dbf2c1e02749234234"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Reduction Gears

## 1. Technical Definition
Mechanical components that reduce rotational speed while increasing torque in robotic systems

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Input speed: 1000-5000 RPM, Output torque: 50-500 N·m, Temperature: -20°C to 120°C, Lubrication pressure: 0.2-0.5 MPa**. Failure boundary: **Gear tooth bending stress exceeds 300 MPa (AGMA 2001-D04), Surface contact stress exceeds 1500 MPa (ISO 6336), Operating temperature exceeds 150°C causing lubricant breakdown, Backlash exceeds 0.1 mm causing positioning error**, Mechanism: **Hertzian contact stress exceeding material yield strength causes pitting failure (ISO 6336-2), Thermal expansion mismatch between steel gears (α=11×10⁻⁶/°C) and aluminum housing (α=23×10⁻⁶/°C) creates binding at ΔT&gt;80°C, Lubricant film thickness &lt;0.1 μm (Stribeck curve) leads to boundary lubrication and adhesive wear**.

### 2.1 Analytical Physics Model
Governed by the **L10 Bearing Life & Fatigue Model**:

> **Primary Equation**: $L_{10} = (\frac{C}{P})^p$  
> **Engineering Impact**: Predicts mechanical lifecycle before component fatigue.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| C | Dynamic Load Rating | Engineering Constant |
| P | Equivalent Dynamic Load | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Misalignment exceeding 0.05 mm/m (ISO 1328-1) during assembly | 8 | Uneven load distribution causing localized pitting on gear teeth | Laser alignment system with 0.01 mm precision and tapered roller bearings with C0 clearance grade |
| Contaminant particles &gt;15 μm (ISO 4406:1999 Class 18/16/13) in lubricant | 8 | Abrasive wear reducing gear tooth profile accuracy below AGMA Class 9 | Magnetic filtration system with 5 μm absolute rating and desiccant breather maintaining ISO 8573-1:2010 Class 1 air quality |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | ratio | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Planet Carrier](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/planet-carrier.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Industrial Gearbox Test Bench**, **Precision Gear Grinding Machine**, **Automated Assembly Workstation**  
**Downstream Applications**: Industrial Robotic Arms, Automated Conveyor Systems, Precision Machine Tools  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the main benefits of using hardened alloy steel in reduction gears?
**A**: Hardened alloy steel provides superior durability, wear resistance, and load-bearing capacity, ensuring longer service life and reliable performance in demanding robotic applications.

### Q: How do reduction gears improve robotic system performance?
**A**: Reduction gears decrease rotational speed while significantly increasing torque output, allowing robots to handle heavier loads with precise control and improved energy efficiency.

### Q: What maintenance is required for planetary reduction gears?
**A**: Regular lubrication maintenance is essential, along with periodic inspection of bearings and gear teeth for wear. Proper lubrication ensures smooth operation and extends component lifespan.

## 6. Manufacturing Compliance
- ISO 1328-1:2013 CYLINDRICAL GEARS - ISO SYSTEM OF FLANK TOLERANCE CLASSIFICATION
- ANSI/AGMA 2000-A88 GEAR CLASSIFICATION AND INSPECTION HANDBOOK

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Reduction Gears](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/reduction-gears)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **5** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: REDUCTION_GEARS | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: f147def4
