---
title: "Gearbox / Reduction Gear"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:GEARBOX_REDUCTION_GEAR"
  data_integrity_hash: "152f4f5ccb5ce21ecc3dcd3ba5da86d2"
  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:GEARBOX_REDUCTION_GEAR"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/gearbox-reduction-gear.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/gearbox-reduction-gear"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "Input speed: 500-3600 RPM, Output torque: 200-5000 N·m, Temperature: -20°C to 120°C, Lubrication pressure: 1.5-3.0 bar"
    unit: "ratio"
engineering_limits:
  max_safe_operating_point:
    value: 1500
    unit: "MPa"
    consequence: "Pitting fatigue due to Hertzian contact stress exceeding material endurance limit, Thermal degradation of lubricant at Arrhenius rate constant k=1.2×10⁻⁵ s⁻¹ at 150°C, Micropitting from elastohydrodynamic lubrication film collapse below λ&lt;1 ratio"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Misalignment exceeding 0.05 mm/mm shaft deflection"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Laser-aligned mounting with 0.01 mm tolerance and crowned gear teeth design"
  - node_2:
      trigger: "Contaminant ingress with particle size &gt;15 μm in lubricant"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "IP66 sealed housing with 10 μm absolute filtration and magnetic drain plugs"
bom_nodes:
  input-shaft:
    type: "component"
    urn: "URN:CNFX:ME:INPUT_SHAFT"
    interface_type: "physical-logic-coupled"
  gears:
    type: "component"
    urn: "URN:CNFX:ME:GEARS"
    interface_type: "physical-logic-coupled"
  output-shaft:
    type: "component"
    urn: "URN:CNFX:ME:OUTPUT_SHAFT"
    interface_type: "physical-logic-coupled"
  housing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING"
    interface_type: "physical-logic-coupled"
  bearings:
    type: "part"
    urn: "URN:CNFX:ME:BEARINGS"
    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/gearbox-reduction-gear.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "c37809eadb4350b58a9835165fe7293bffe43f7e8f36f38c496019e73d0a9bf6"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Gearbox / Reduction Gear

## 1. Technical Definition
A mechanical device that reduces rotational speed while increasing torque within a hoist system.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Input speed: 500-3600 RPM, Output torque: 200-5000 N·m, Temperature: -20°C to 120°C, Lubrication pressure: 1.5-3.0 bar**. Failure boundary: **Gear tooth contact stress exceeds 1500 MPa, Bearing temperature exceeds 150°C, Lubrication film thickness falls below 0.5 μm, Vibration amplitude exceeds 2.5 mm/s RMS**, Mechanism: **Pitting fatigue due to Hertzian contact stress exceeding material endurance limit, Thermal degradation of lubricant at Arrhenius rate constant k=1.2×10⁻⁵ s⁻¹ at 150°C, Micropitting from elastohydrodynamic lubrication film collapse below λ&lt;1 ratio**.

### 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/mm shaft deflection | 8 | Uneven gear tooth loading causing localized pitting at pitch line | Laser-aligned mounting with 0.01 mm tolerance and crowned gear teeth design |
| Contaminant ingress with particle size &gt;15 μm in lubricant | 8 | Abrasive wear increasing gear backlash beyond 0.1 mm | IP66 sealed housing with 10 μm absolute filtration and magnetic drain plugs |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Electric Motor**, **Lubrication System**, **Control Panel**  
**Downstream Applications**: Industrial Hoists, Conveyor Systems, Cranes  

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

### Q: What materials are used in this reduction gearbox for durability?
**A**: Our gearbox features cast iron housing for strength, alloy steel gears for wear resistance, and bronze bearings for smooth operation in demanding hoist applications.

### Q: How does this gearbox improve hoist system performance?
**A**: By reducing rotational speed while significantly increasing torque output, this gearbox ensures controlled lifting, precise positioning, and reliable power transmission in hoist machinery.

### Q: What maintenance do these industrial gearboxes require?
**A**: With sealed housing and quality bearings, these gearboxes need minimal maintenance—primarily periodic lubrication checks and inspection of input/output shafts for optimal performance.

## 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: Gearbox / Reduction Gear](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/gearbox-reduction-gear)**

### 🌐 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**: GEARBOX_REDUCTION_GEAR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 2bcda71c
