---
title: "Thrust Bearing"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:THRUST_BEARING"
  data_integrity_hash: "54fbe0623db8b0c000e0bee2419fa414"
  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:THRUST_BEARING"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/thrust-bearing.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/thrust-bearing"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "5-150 kN axial load, -40°C to 150°C operating temperature, 500-3000 rpm rotational speed"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 180
    unit: "kN"
    consequence: "Hertzian contact stress exceeding material yield strength causes rolling element deformation; Arrhenius equation thermal degradation reduces lubricant film thickness below 0.5 μm boundary lubrication threshold; subsurface shear stress cycles initiate fatigue cracks at material inclusions following Paris' law crack propagation"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Insufficient lubricant film thickness (λ &lt; 1) due to high PV factor exceeding 3.5 MPa·m/s"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Forced oil circulation system with 0.1 μm filtration and temperature-controlled reservoir maintaining 40-60°C"
  - node_2:
      trigger: "Misalignment exceeding 0.002 mm/mm causes edge loading on bearing raceway"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Spherical seat design with ±2° angular compliance and laser-aligned mounting fixtures"
bom_nodes:
  inner-raceway:
    type: "component"
    urn: "URN:CNFX:ME:INNER_RACEWAY"
    interface_type: "physical-logic-coupled"
  outer-raceway:
    type: "component"
    urn: "URN:CNFX:ME:OUTER_RACEWAY"
    interface_type: "physical-logic-coupled"
  rolling-elements:
    type: "component"
    urn: "URN:CNFX:ME:ROLLING_ELEMENTS"
    interface_type: "physical-logic-coupled"
  cageretainer:
    type: "component"
    urn: "URN:CNFX:ME:CAGERETAINER"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 104:2015 - THRUST BEARINGS - DYNAMIC LOAD RATINGS AND RATING LIFE"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ABMA 11:2014 - LOAD RATINGS AND FATIGUE LIFE FOR BALL BEARINGS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 616:2015 - THRUST BALL BEARINGS - BOUNDARY DIMENSIONS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/thrust-bearing.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d815dc34bbbd5ade47a34ebf0d494bfb7407ac5208fd74303599f8f9305f6204"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Thrust Bearing

## 1. Technical Definition
A specialized bearing designed to handle axial loads parallel to the shaft axis

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **5-150 kN axial load, -40°C to 150°C operating temperature, 500-3000 rpm rotational speed**. Failure boundary: **Axial load &gt; 180 kN causes plastic deformation of rolling elements, temperature &gt; 180°C degrades lubricant viscosity below 10 cSt, contact stress &gt; 4.2 GPa initiates subsurface fatigue cracking**, Mechanism: **Hertzian contact stress exceeding material yield strength causes rolling element deformation; Arrhenius equation thermal degradation reduces lubricant film thickness below 0.5 μm boundary lubrication threshold; subsurface shear stress cycles initiate fatigue cracks at material inclusions following Paris' law crack propagation**.

### 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) due to high PV factor exceeding 3.5 MPa·m/s | 8 | Adhesive wear and micro-welding at asperity contacts | Forced oil circulation system with 0.1 μm filtration and temperature-controlled reservoir maintaining 40-60°C |
| Misalignment exceeding 0.002 mm/mm causes edge loading on bearing raceway | 8 | Stress concentration at raceway edges exceeding 2.8 GPa contact stress | Spherical seat design with ±2° angular compliance and laser-aligned mounting fixtures |

## 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**: **CNC Lathe**, **Heat Treatment Furnace**, **Surface Grinding Machine**  
**Downstream Applications**: Industrial Pumps, Marine Propulsion Systems, Aerospace Turbine Engines  

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

### Q: What is the primary function of a thrust bearing in machinery?
**A**: Thrust bearings are specifically designed to handle axial loads—forces parallel to the shaft axis—preventing lateral movement and ensuring smooth rotation in machinery applications.

### Q: What materials are commonly used in thrust bearing construction?
**A**: Thrust bearings are typically manufactured from bearing steel for general applications, case-hardened steel for enhanced durability under heavy loads, and stainless steel for corrosion resistance in harsh environments.

### Q: How do I select the right thrust bearing for my equipment?
**A**: Consider factors such as axial load capacity, operating speed, environmental conditions (temperature, exposure to contaminants), and material compatibility with your machinery's requirements.

## 6. Manufacturing Compliance
- ISO 104:2015 - THRUST BEARINGS - DYNAMIC LOAD RATINGS AND RATING LIFE
- ANSI/ABMA 11:2014 - LOAD RATINGS AND FATIGUE LIFE FOR BALL BEARINGS
- DIN 616:2015 - THRUST BALL BEARINGS - BOUNDARY DIMENSIONS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Thrust Bearing](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/thrust-bearing)**

### 🌐 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**: THRUST_BEARING | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: e2899c7c
