---
title: "Linear Bearing"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:LINEAR_BEARING"
  data_integrity_hash: "701d54c80bf633c2e0e4fc8373bb569e"
  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:LINEAR_BEARING"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/linear-bearing.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/linear-bearing"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150°C temperature, 0-1000 N load, 0-2 m/s velocity"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 1200
    unit: "MPa"
    consequence: "Hertzian contact stress exceeding ball material yield strength (SAE 52100 steel: 1900 MPa ultimate), polymer cage thermal expansion exceeding dimensional tolerances (PEEK: 47×10⁻⁶/°C CTE), lubricant oxidation at Arrhenius reaction rate doubling per 10°C rise"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Contaminant particle (≥10 μm) ingress into ball-raceway interface"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Triple-lip contact seals with 0.5 μm filtration, positive-pressure purge system at 0.1 bar"
  - node_2:
      trigger: "Misalignment exceeding 0.1° per 100 mm length"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Self-aligning housing with ±2° adjustment, laser alignment verification to 0.01 mm/m"
bom_nodes:
  outer-housing:
    type: "component"
    urn: "URN:CNFX:ME:OUTER_HOUSING"
    interface_type: "physical-logic-coupled"
  inner-raceway-retainer:
    type: "component"
    urn: "URN:CNFX:ME:INNER_RACEWAY_RETAINER"
    interface_type: "physical-logic-coupled"
  rolling-elements-ballsrollers:
    type: "component"
    urn: "URN:CNFX:ME:ROLLING_ELEMENTS_BALLSROLLERS"
    interface_type: "physical-logic-coupled"
  seals-shields:
    type: "component"
    urn: "URN:CNFX:ME:SEALS_SHIELDS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 10285:2011 - LINEAR MOTION ROLLING BEARINGS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 636:2014 - LINEAR BALL BEARINGS AND SHAFT ASSEMBLIES"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/linear-bearing.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "2665a9f0eba920ea96e213921f362b91a4309463e60f1d66627635bda0334032"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Linear Bearing

## 1. Technical Definition
A precision mechanical component that provides low-friction linear motion along a guide rod or shaft.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150°C temperature, 0-1000 N load, 0-2 m/s velocity**. Failure boundary: **Ball deformation at 1200 MPa contact stress, cage fracture at 200°C glass transition temperature, lubricant breakdown at 180°C**, Mechanism: **Hertzian contact stress exceeding ball material yield strength (SAE 52100 steel: 1900 MPa ultimate), polymer cage thermal expansion exceeding dimensional tolerances (PEEK: 47×10⁻⁶/°C CTE), lubricant oxidation at Arrhenius reaction rate doubling per 10°C rise**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Contaminant particle (≥10 μm) ingress into ball-raceway interface | 8 | Brinnelling damage with 0.1 mm permanent indentation, 15 dB vibration increase at 500 Hz | Triple-lip contact seals with 0.5 μm filtration, positive-pressure purge system at 0.1 bar |
| Misalignment exceeding 0.1° per 100 mm length | 8 | Edge loading with 300% stress concentration, retainer fracture at 10⁷ cycles | Self-aligning housing with ±2° adjustment, laser alignment verification to 0.01 mm/m |

## 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 Machining Center**, **Surface Grinding Machine**, **Coordinate Measuring Machine**  
**Downstream Applications**: Industrial Robots, 3D Printers, Packaging Machinery  

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

### Q: What are the main materials used in linear bearings?
**A**: Linear bearings are typically made from Chrome Steel (GCR15) for high load capacity or Stainless Steel (e.g., 440C, SUS304) for corrosion resistance in harsh environments.

### Q: What components make up a linear bearing's BOM?
**A**: The bill of materials includes: Inner Raceway/Retainer, Outer Housing, Rolling Elements (Balls/Rollers), and Seals/Shields for protection against contaminants.

### Q: How do linear bearings provide low-friction motion?
**A**: Linear bearings use precision rolling elements (balls or rollers) between inner and outer components to minimize friction along guide rods or shafts, enabling smooth linear movement in machinery.

## 6. Manufacturing Compliance
- ISO 10285:2011 - LINEAR MOTION ROLLING BEARINGS
- DIN 636:2014 - LINEAR BALL BEARINGS AND SHAFT ASSEMBLIES

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Linear Bearing](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/linear-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**: LINEAR_BEARING | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 04ad420a
