---
title: "Joint Housing"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:JOINT_HOUSING"
  data_integrity_hash: "12a01a3edd471ee864086285fb5f45ed"
  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:JOINT_HOUSING"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/joint-housing.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/joint-housing"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 MPa internal pressure, -40°C to 120°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 180
    unit: "MPa"
    consequence: "Von Mises stress exceeding 7075-T6 aluminum yield strength (503 MPa) or polymer creep deformation above Tg"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Misalignment-induced bending moment exceeding 450 N·m"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Finite element analysis-optimized rib geometry with 2.5x safety factor on bending loads"
  - node_2:
      trigger: "Contaminant ingress (ISO 4406 Class 18/16/13) causing abrasive wear"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Triple-lip PTFE seal with 0.3 MPa sealing pressure and IP67 rating"
bom_nodes:
  bearing-seat:
    type: "component"
    urn: "URN:CNFX:ME:BEARING_SEAT"
    interface_type: "physical-logic-coupled"
  seal-groove:
    type: "component"
    urn: "URN:CNFX:ME:SEAL_GROOVE"
    interface_type: "physical-logic-coupled"
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/joint-housing.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f98ae3b3278140e1f5daba6f1eac015b7a350b2a709d17dcb9e410e391559968"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Joint Housing

## 1. Technical Definition
The structural enclosure that houses and protects the internal components of an articulated arm joint.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 MPa internal pressure, -40°C to 120°C ambient temperature**. Failure boundary: **Yield strength exceeded at 180 MPa internal pressure or 140°C material glass transition temperature**, Mechanism: **Von Mises stress exceeding 7075-T6 aluminum yield strength (503 MPa) or polymer creep deformation above Tg**.

### 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 |
| :--- | :--- | :--- | :--- |
| Misalignment-induced bending moment exceeding 450 N·m | 8 | Housing wall fatigue crack propagation from stress concentration at bolt holes | Finite element analysis-optimized rib geometry with 2.5x safety factor on bending loads |
| Contaminant ingress (ISO 4406 Class 18/16/13) causing abrasive wear | 8 | Radial clearance increase beyond 0.05 mm tolerance, inducing joint backlash | Triple-lip PTFE seal with 0.3 MPa sealing pressure and IP67 rating |

## 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**, **Coordinate Measuring Machine (CMM)**, **Industrial Robotic Arm**  
**Downstream Applications**: Industrial Robotic Arms, Construction Equipment (Excavators), Aerospace Actuators  

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

### Q: What materials are available for joint housings in machinery manufacturing?
**A**: Our joint housings are manufactured in aluminum alloy for lightweight applications, cast iron for maximum durability, and stainless steel for corrosion resistance in harsh environments.

### Q: What components are included in a standard joint housing assembly?
**A**: Each joint housing includes a bearing seat for smooth articulation, seal grooves to prevent contamination, and mounting flanges for secure installation in machinery systems.

### Q: How does joint housing protect articulated arm joints in industrial equipment?
**A**: The joint housing provides a structural enclosure that shields internal components from debris, moisture, and mechanical damage while maintaining precise alignment for optimal joint performance.

## 6. Manufacturing Compliance
- ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Joint Housing](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/joint-housing)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: JOINT_HOUSING | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: d666d547
