---
title: "Transmission"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TRANSMISSION"
  data_integrity_hash: "0b29902075c08044c8ac1cbc94c99d1a"
  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:TRANSMISSION"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/transmission.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/transmission"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 MPa (input torque), 100-6000 RPM (input speed), -40°C to 150°C (operating temperature)"
    unit: "N/A"
engineering_limits:
  max_safe_operating_point:
    value: 420
    unit: "MPa"
    consequence: "Hertzian contact stress exceeding material fatigue limit (typically 300-400 MPa for case-hardened steel), boundary lubrication failure at Stribeck parameter &lt; 0.001, torsional resonance at critical speed matching natural frequency of 85-120 Hz"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Insufficient lubricant film thickness (λ &lt; 1.0)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Forced lubrication system with minimum 0.08 mm oil film thickness, EP additives in lubricant"
  - node_2:
      trigger: "Misalignment exceeding 0.05 mm/mm over 300 mm shaft length"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Laser-aligned mounting with &lt; 0.02 mm/mm tolerance, flexible couplings with 3° angular misalignment capacity"
bom_nodes:
  gear-set:
    type: "part"
    urn: "URN:CNFX:ME:GEAR_SET"
    interface_type: "physical-logic-coupled"
  clutch-pack:
    type: "part"
    urn: "URN:CNFX:ME:CLUTCH_PACK"
    interface_type: "physical-logic-coupled"
  transmission-housing:
    type: "part"
    urn: "URN:CNFX:ME:TRANSMISSION_HOUSING"
    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/motor-vehicle-manufacturing/product/transmission.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d58d0289f50d183428202fd84433f79f90b597c42a7dc10644c47b5df740ccd3"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Transmission

## 1. Technical Definition
A mechanical system that transmits power from the engine to the wheels, controlling speed and torque.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 MPa (input torque), 100-6000 RPM (input speed), -40°C to 150°C (operating temperature)**. Failure boundary: **Shear stress exceeding 420 MPa for steel gears (yield strength of AISI 4140), bearing temperature exceeding 200°C (lubricant breakdown point), gear tooth deflection exceeding 0.1 mm per 100 mm face width**, Mechanism: **Hertzian contact stress exceeding material fatigue limit (typically 300-400 MPa for case-hardened steel), boundary lubrication failure at Stribeck parameter &lt; 0.001, torsional resonance at critical speed matching natural frequency of 85-120 Hz**.

### 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 |
| :--- | :--- | :--- | :--- |
| Insufficient lubricant film thickness (λ &lt; 1.0) | 8 | Gear scuffing and pitting (surface distress) | Forced lubrication system with minimum 0.08 mm oil film thickness, EP additives in lubricant |
| Misalignment exceeding 0.05 mm/mm over 300 mm shaft length | 8 | Bearing brinelling and premature fatigue | Laser-aligned mounting with &lt; 0.02 mm/mm tolerance, flexible couplings with 3° angular misalignment capacity |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Gear Set](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/gear-set.md) `(Standalone System)`
- [Clutch Pack](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/clutch-pack.md) `(Standalone System)`
- [Transmission Housing](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/transmission-housing.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Transmission Assembly Line**, **Gear Hobbing Machine**, **Hydraulic Press**  
**Downstream Applications**: Passenger Vehicles, Commercial Trucks, Heavy Equipment  

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

### Q: What materials are used in your transmission systems for durability?
**A**: Our transmissions are constructed from high-grade alloy steel and cast iron, ensuring exceptional strength, heat resistance, and longevity under demanding motor vehicle operating conditions.

### Q: What are the key components in your transmission BOM?
**A**: The bill of materials includes a precision clutch pack for smooth engagement, a durable gear set for torque management, and a robust transmission housing that protects internal components from contaminants and damage.

### Q: How do your transmissions optimize vehicle performance?
**A**: Our systems efficiently transfer engine power to the wheels while providing optimal control over speed and torque, resulting in improved fuel efficiency, smoother shifting, and enhanced driving dynamics for various vehicle applications.

## 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: Transmission](https://cnfx.com/industry/motor-vehicle-manufacturing/product/transmission)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: TRANSMISSION | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 695bf60e
