---
title: "Undercarriage (Tracks)"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:UNDERCARRIAGE_TRACKS"
  data_integrity_hash: "e5a38406a854fb9acae0a8922d20a0eb"
  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:UNDERCARRIAGE_TRACKS"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/undercarriage-tracks.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/undercarriage-tracks"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "Track tension: 25-40 kN, Ground pressure: 40-80 kPa, Sprocket torque: 800-1500 Nm"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 600
    unit: "MPa"
    consequence: "Hertzian contact fatigue at roller-rail interfaces exceeding 1.5 GPa contact pressure, abrasive wear exceeding 0.5 mm/hr at pin-bushing joints, bending fatigue at track links exceeding 400 MPa alternating stress"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Rockwell C hardness mismatch exceeding 5 HRC between track pin (55-60 HRC) and bushing (50-55 HRC)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement controlled induction hardening with 58±1 HRC surface hardness and 45 HRC core hardness gradient"
  - node_2:
      trigger: "Track tension exceeding 45 kN causing sprocket tooth bending stress &gt;500 MPa"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install hydraulic tensioner with PID control maintaining 35±2 kN and automatic slack detection at 25 kN threshold"
bom_nodes:
  track-chain-links-pins:
    type: "component"
    urn: "URN:CNFX:ME:TRACK_CHAIN_LINKS_PINS"
    interface_type: "physical-logic-coupled"
  track-shoespads:
    type: "component"
    urn: "URN:CNFX:ME:TRACK_SHOESPADS"
    interface_type: "physical-logic-coupled"
  drive-sprocket:
    type: "component"
    urn: "URN:CNFX:ME:DRIVE_SPROCKET"
    interface_type: "physical-logic-coupled"
  idler-wheel:
    type: "component"
    urn: "URN:CNFX:ME:IDLER_WHEEL"
    interface_type: "physical-logic-coupled"
  carrier-rollers:
    type: "component"
    urn: "URN:CNFX:ME:CARRIER_ROLLERS"
    interface_type: "physical-logic-coupled"
  track-rollers-bottom-rollers:
    type: "component"
    urn: "URN:CNFX:ME:TRACK_ROLLERS_BOTTOM_ROLLERS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING (MACHINERY DIRECTIVE 2006/42/EC FOR SAFETY)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/undercarriage-tracks.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "0c7f0b94c000eb94af399371e725c8dc45085a200ed1b0a0fa7e329ef0283155"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Undercarriage (Tracks)

## 1. Technical Definition
The track-based propulsion system of a bulldozer that provides mobility, traction, and weight distribution across terrain.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Track tension: 25-40 kN, Ground pressure: 40-80 kPa, Sprocket torque: 800-1500 Nm**. Failure boundary: **Track link ultimate tensile strength: 600 MPa, Roller bearing fatigue limit: 350 MPa, Pin-sleeve shear stress: 450 MPa**, Mechanism: **Hertzian contact fatigue at roller-rail interfaces exceeding 1.5 GPa contact pressure, abrasive wear exceeding 0.5 mm/hr at pin-bushing joints, bending fatigue at track links exceeding 400 MPa alternating stress**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Rockwell C hardness mismatch exceeding 5 HRC between track pin (55-60 HRC) and bushing (50-55 HRC) | 8 | Accelerated abrasive wear at pin-bushing interface exceeding 0.8 mm/hr material loss rate | Implement controlled induction hardening with 58±1 HRC surface hardness and 45 HRC core hardness gradient |
| Track tension exceeding 45 kN causing sprocket tooth bending stress &gt;500 MPa | 8 | Sprocket tooth root fatigue fracture initiating at 10⁶ cycles under 450 MPa alternating stress | Install hydraulic tensioner with PID control maintaining 35±2 kN and automatic slack detection at 25 kN threshold |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Track Tensioning System**, **Track Press**, **Track Alignment Fixture**  
**Downstream Applications**: Bulldozer, Excavator, Track Loader  

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

### Q: What materials are used in bulldozer undercarriage tracks for durability?
**A**: Our undercarriage tracks utilize high-grade alloy steel and manganese steel for structural components, combined with reinforced rubber pads/liners to maximize wear resistance and terrain adaptability.

### Q: How often should bulldozer track components be inspected and maintained?
**A**: Regular inspection every 250-500 operating hours is recommended, with maintenance intervals depending on terrain severity. Track tension, roller condition, and shoe wear should be monitored consistently to prevent premature failure.

### Q: What are the key components in a complete track undercarriage system?
**A**: A complete system includes track chains (links &amp; pins), track shoes/pads, drive sprocket, idler wheel, carrier rollers, and track rollers (bottom rollers) - all engineered to work together for optimal propulsion and load distribution.

## 6. Manufacturing Compliance
- ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)
- CE MARKING (MACHINERY DIRECTIVE 2006/42/EC FOR SAFETY)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Undercarriage (Tracks)](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/undercarriage-tracks)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **6** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: UNDERCARRIAGE_TRACKS | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 0cecf3b7
