---
title: "Bogie (Truck)"
industry: "Other Transport Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:BOGIE_TRUCK"
  data_integrity_hash: "ed8317e2dfe642347c317b9b33f9c283"
  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:BOGIE_TRUCK"
  data_source_uri: "https://cnfx.com/llms/industry/other-transport-equipment-manufacturing/product/bogie-truck.md"
  official_resource_url: "https://cnfx.com/industry/other-transport-equipment-manufacturing/product/bogie-truck"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-250 kN vertical load per axle, -40°C to +40°C ambient temperature, 0-160 km/h speed"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 150
    unit: "mm"
    consequence: "Hertzian contact fatigue at wheel-rail interface due to cyclic loading exceeding material yield strength, leading to subsurface crack propagation and spalling"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Insufficient lubrication in axlebox bearings causing temperature rise to 120°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated temperature sensors with automatic track-side monitoring at 5 km intervals"
  - node_2:
      trigger: "Corrosion-induced thickness reduction of bogie frame steel below 8 mm"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hot-dip galvanizing with 85 μm zinc coating and ultrasonic thickness testing every 50,000 km"
bom_nodes:
  bogie-frame:
    type: "part"
    urn: "URN:CNFX:ME:BOGIE_FRAME"
    interface_type: "physical-logic-coupled"
  wheelset:
    type: "part"
    urn: "URN:CNFX:ME:WHEELSET"
    interface_type: "physical-logic-coupled"
  primary-suspension:
    type: "component"
    urn: "URN:CNFX:ME:PRIMARY_SUSPENSION"
    interface_type: "physical-logic-coupled"
  brake-rigging:
    type: "part"
    urn: "URN:CNFX:ME:BRAKE_RIGGING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/other-transport-equipment-manufacturing/product/bogie-truck.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "1c576ade5a7076173bb4ce33554aef01de4084025b258e81adaae11a64db0ab8"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Bogie (Truck)

## 1. Technical Definition
A structural framework that supports the rail vehicle body, houses wheelsets, and provides suspension and guidance along tracks.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-250 kN vertical load per axle, -40°C to +40°C ambient temperature, 0-160 km/h speed**. Failure boundary: **Primary suspension spring deflection exceeding 150 mm, secondary air spring pressure dropping below 3.5 bar, wheel-rail contact stress surpassing 1500 MPa**, Mechanism: **Hertzian contact fatigue at wheel-rail interface due to cyclic loading exceeding material yield strength, leading to subsurface crack propagation and spalling**.

### 2.1 Analytical Physics Model
Governed by the **Frame Structural Deflection Analysis**:

> **Primary Equation**: $\delta = \frac{5 q L^4}{384 E I}$  
> **Engineering Impact**: Ensures structural stability for multi-stage machines.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| q | Uniform Load | Engineering Constant |
| E | Elastic Modulus | Engineering Constant |
| I | Moment of Inertia | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Insufficient lubrication in axlebox bearings causing temperature rise to 120°C | 8 | Bearing seizure leading to wheelset lockup and derailment | Integrated temperature sensors with automatic track-side monitoring at 5 km intervals |
| Corrosion-induced thickness reduction of bogie frame steel below 8 mm | 8 | Structural fatigue cracking at stress concentration points during 2×10^6 load cycles | Hot-dip galvanizing with 85 μm zinc coating and ultrasonic thickness testing every 50,000 km |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Bogie frame](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/bogie-frame.md) `(Standalone System)`
- [Wheelset](https://cnfx.com/llms/industry/other-transport-equipment-manufacturing/product/wheelset.md) `(Standalone System)`
- [Brake rigging](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/brake-rigging.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Machining Center**, **Welding Robot System**, **Shot Blasting Machine**  
**Downstream Applications**: Railway Freight Car, Passenger Rail Coach, Light Rail Vehicle  

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

### Q: What is the primary function of a bogie in rail transport equipment?
**A**: A bogie serves as the structural framework that supports the rail vehicle body, houses the wheelsets, and provides both suspension for ride comfort and guidance along the tracks.

### Q: What materials are commonly used in manufacturing bogie frames?
**A**: Bogie frames are typically constructed from high-strength steel or alloy steel to withstand heavy loads, vibrations, and harsh operating conditions while maintaining durability.

### Q: What are the key components included in a standard bogie assembly?
**A**: A standard bogie assembly includes the bogie frame, wheelset, primary suspension system, and brake rigging components that work together for stability, movement, and control.

## 6. Manufacturing Compliance

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Bogie (Truck)](https://cnfx.com/industry/other-transport-equipment-manufacturing/product/bogie-truck)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: BOGIE_TRUCK | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 3515c85f
