---
title: "Guide Rod/Bearing Assembly"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:GUIDE_RODBEARING_ASSEMBLY"
  data_integrity_hash: "a02dcf986cd66f4dd53e2a1a96b0d899"
  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:GUIDE_RODBEARING_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/guide-rodbearing-assembly.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/guide-rodbearing-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-5.0 m/s linear velocity, 0.01-0.05 mm radial clearance, 20-80°C operating temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.08
    unit: "mm"
    consequence: "Hydrodynamic lubrication breakdown at Stribeck curve boundary (λ &lt; 1), Hertzian contact stress exceeding bearing material yield strength (σ_H &gt; 1.2 GPa), thermal expansion mismatch exceeding clearance tolerance (ΔαΔT &gt; 15 μm/m)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Abrasive particle ingress (diameter &gt; 5 μm) exceeding ISO 4406 18/16/13 cleanliness level"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate labyrinth seals with 0.02 mm clearance and positive pressure purge (0.1 bar above ambient)"
  - node_2:
      trigger: "Misalignment exceeding 0.02 mm/mm over 300 mm length due to foundation settlement"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement self-aligning spherical bearing seats with ±1.5° angular compensation"
bom_nodes:
  guide-rod:
    type: "component"
    urn: "URN:CNFX:ME:GUIDE_ROD"
    interface_type: "physical-logic-coupled"
  linear-bearing:
    type: "part"
    urn: "URN:CNFX:ME:LINEAR_BEARING"
    interface_type: "physical-logic-coupled"
  mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
  sealswipers:
    type: "component"
    urn: "URN:CNFX:ME:SEALSWIPERS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 286-2:2010 (LIMITS AND FITS FOR CYLINDRICAL PARTS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ABMA 9:1990 (LOAD RATINGS AND FATIGUE LIFE FOR BALL BEARINGS)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 7184-1:2016 (LINEAR MOTION ROLLING BEARINGS - PART 1: DIMENSIONS AND TOLERANCES)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/guide-rodbearing-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "9a4c7b683e9a7981da4d693cca0d63f322155085d7bce594e5971912bd30c43b"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Guide Rod/Bearing Assembly

## 1. Technical Definition
A precision assembly that provides linear guidance and smooth motion for the polishing head.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-5.0 m/s linear velocity, 0.01-0.05 mm radial clearance, 20-80°C operating temperature**. Failure boundary: **Radial clearance exceeds 0.08 mm, surface roughness exceeds Ra 0.4 μm, lubricant film thickness drops below 1 μm**, Mechanism: **Hydrodynamic lubrication breakdown at Stribeck curve boundary (λ &lt; 1), Hertzian contact stress exceeding bearing material yield strength (σ_H &gt; 1.2 GPa), thermal expansion mismatch exceeding clearance tolerance (ΔαΔT &gt; 15 μm/m)**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Abrasive particle ingress (diameter &gt; 5 μm) exceeding ISO 4406 18/16/13 cleanliness level | 8 | Three-body abrasive wear causing surface scoring (Ra increase &gt; 0.2 μm per 1000 cycles) | Integrate labyrinth seals with 0.02 mm clearance and positive pressure purge (0.1 bar above ambient) |
| Misalignment exceeding 0.02 mm/mm over 300 mm length due to foundation settlement | 8 | Edge loading with contact pressure concentration exceeding 2.5 GPa at bearing ends | Implement self-aligning spherical bearing seats with ±1.5° angular compensation |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Linear Bearing](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/linear-bearing.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Machining Center**, **Coordinate Measuring Machine (CMM)**, **Industrial Polishing System**  
**Downstream Applications**: Optical Lenses, Semiconductor Wafers, Precision Automotive Components  

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

### Q: What materials are used in this guide rod/bearing assembly?
**A**: This assembly uses hardened steel for the guide rod, stainless steel for corrosion resistance, and bronze for the bushings to ensure smooth linear motion and durability.

### Q: What applications is this guide rod assembly designed for?
**A**: It's specifically engineered for polishing heads in machinery and equipment manufacturing, providing precise linear guidance and smooth motion essential for surface finishing processes.

### Q: What components are included in the BOM for this assembly?
**A**: The bill of materials includes the guide rod, linear bearing, mounting brackets, and seals/wipers to protect against contaminants and ensure long service life.

## 6. Manufacturing Compliance
- ISO 286-2:2010 (LIMITS AND FITS FOR CYLINDRICAL PARTS)
- ANSI/ABMA 9:1990 (LOAD RATINGS AND FATIGUE LIFE FOR BALL BEARINGS)
- DIN 7184-1:2016 (LINEAR MOTION ROLLING BEARINGS - PART 1: DIMENSIONS AND TOLERANCES)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Guide Rod/Bearing Assembly](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/guide-rodbearing-assembly)**

### 🌐 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**: GUIDE_RODBEARING_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: d78dd261
