---
title: "Gearbox"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:GEARBOX"
  data_integrity_hash: "687689a7e8f206041995232ff703a468"
  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"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/gearbox.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/gearbox"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-150 kN·m torque, 0.1-6000 rpm input speed, -20°C to 120°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 400
    unit: "MPa"
    consequence: "Hertzian contact stress exceeding material yield strength causes pitting fatigue; elastohydrodynamic lubrication breakdown leads to adhesive wear"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Misalignment exceeding 0.05 mm/mm shaft deflection"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Precision ground spline couplings with 0.01 mm tolerance and laser alignment verification"
  - node_2:
      trigger: "Lubricant viscosity drop below ISO VG 68 at 40°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Forced lubrication system with 0.3 MPa oil pressure and thermoelectric cooling maintaining 60-80°C sump temperature"
bom_nodes:
  gears:
    type: "component"
    urn: "URN:CNFX:ME:GEARS"
    interface_type: "physical-logic-coupled"
  housingcasing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSINGCASING"
    interface_type: "physical-logic-coupled"
  input-shaft:
    type: "component"
    urn: "URN:CNFX:ME:INPUT_SHAFT"
    interface_type: "physical-logic-coupled"
  output-shaft:
    type: "component"
    urn: "URN:CNFX:ME:OUTPUT_SHAFT"
    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.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "05cb48b03a66cf1de8afed68b1ba48b1b5f4d8989e4e08919c806f5a5a3ebf7e"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Gearbox

## 1. Technical Definition
A mechanical device that transmits and modifies torque and speed from a power source to driven equipment.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-150 kN·m torque, 0.1-6000 rpm input speed, -20°C to 120°C ambient temperature**. Failure boundary: **Bending stress &gt; 400 MPa at gear root, contact stress &gt; 1500 MPa at tooth surface, lubricant film thickness &lt; 0.1 μm**, Mechanism: **Hertzian contact stress exceeding material yield strength causes pitting fatigue; elastohydrodynamic lubrication breakdown leads to 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/mm shaft deflection | 8 | Uneven tooth loading causing localized spalling | Precision ground spline couplings with 0.01 mm tolerance and laser alignment verification |
| Lubricant viscosity drop below ISO VG 68 at 40°C | 8 | Boundary lubrication regime causing scuffing wear | Forced lubrication system with 0.3 MPa oil pressure and thermoelectric cooling maintaining 60-80°C sump temperature |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | 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**, **Coupling**, **Lubrication System**  
**Downstream Applications**: Conveyor Systems, Industrial Mixers, Packaging Machinery  

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

### Q: What materials are used in your industrial gearboxes?
**A**: Our gearboxes are constructed from durable materials including cast iron for housings, steel alloys for gears and shafts, and aluminum alloys for lightweight applications where appropriate.

### Q: What are the main components of your gearbox systems?
**A**: Key components include precision gears, robust housing/casing, input and output shafts, and high-quality bearings designed for reliable torque transmission and speed modification.

### Q: How do your gearboxes benefit machinery manufacturing operations?
**A**: Our gearboxes efficiently transmit and modify torque and speed from power sources to driven equipment, enhancing operational efficiency, reducing maintenance needs, and improving overall equipment performance in manufacturing settings.

## 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](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/gearbox)**

### 🌐 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 | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 61a729b3
