---
title: "Center Housing"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CENTER_HOUSING"
  data_integrity_hash: "0200e997f14b5ad9861e472790ac9f40"
  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:CENTER_HOUSING"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/center-housing.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/center-housing"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-250°C temperature, 0-5 bar pressure differential"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 350
    unit: "°C"
    consequence: "Thermal fatigue from cyclic temperature gradients exceeding 200°C/min, creep deformation at sustained temperatures above 300°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Thermal cycling exceeding 10,000 cycles between 20°C and 250°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Finite element analysis-optimized rib geometry with 1.5 mm minimum fillet radius"
  - node_2:
      trigger: "Bearing clearance increase beyond 0.05 mm due to wear"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hard anodized coating (25-50 μm thickness) on critical wear surfaces"
bom_nodes:
  bearing-journals:
    type: "component"
    urn: "URN:CNFX:ME:BEARING_JOURNALS"
    interface_type: "physical-logic-coupled"
  cooling-water-passages:
    type: "component"
    urn: "URN:CNFX:ME:COOLING_WATER_PASSAGES"
    interface_type: "physical-logic-coupled"
  mounting-flanges:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGES"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 286-2:2010 (GEOMETRICAL PRODUCT SPECIFICATIONS - LIMITS AND FITS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B4.1-1967 (R2019) (PREFERRED LIMITS AND FITS FOR CYLINDRICAL PARTS)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 7184-1:2018 (HOUSINGS - PART 1: GENERAL REQUIREMENTS AND DESIGN)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/center-housing.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "dc8ead4ca86758bd3dec128cc1d17c8593ee8da5b446f31acc145bd45b11348f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Center Housing

## 1. Technical Definition
The central structural component of a turbocharger's CHRA that houses the rotating assembly and provides mounting interfaces.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-250°C temperature, 0-5 bar pressure differential**. Failure boundary: **Material yield strength threshold at 350°C (e.g., 250 MPa for cast aluminum alloys), thermal expansion differential exceeding 0.15 mm clearance**, Mechanism: **Thermal fatigue from cyclic temperature gradients exceeding 200°C/min, creep deformation at sustained temperatures above 300°C**.

### 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 |
| :--- | :--- | :--- | :--- |
| Thermal cycling exceeding 10,000 cycles between 20°C and 250°C | 8 | Crack propagation from stress concentration points (e.g., bolt holes) | Finite element analysis-optimized rib geometry with 1.5 mm minimum fillet radius |
| Bearing clearance increase beyond 0.05 mm due to wear | 8 | Rotating assembly contact with housing inner surface | Hard anodized coating (25-50 μm thickness) on critical wear surfaces |

## 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**, **Industrial Parts Washer**  
**Downstream Applications**: Turbocharger Assembly, Engine Assembly, Complete Vehicle Assembly  

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

### Q: What is the primary function of a center housing in a turbocharger?
**A**: The center housing serves as the central structural component of a turbocharger's CHRA (Center Housing Rotating Assembly), housing the rotating shaft and bearings while providing mounting interfaces for the compressor and turbine housings.

### Q: What are the advantages of aluminum alloy vs cast iron center housings?
**A**: Aluminum alloy center housings offer lighter weight and better heat dissipation, while cast iron provides superior durability and thermal stability under extreme conditions. Material selection depends on specific application requirements.

### Q: How do cooling water passages in the center housing improve turbocharger performance?
**A**: Integrated cooling water passages help regulate operating temperatures, reducing thermal stress on bearings and seals, extending component lifespan, and maintaining optimal turbocharger efficiency during continuous operation.

## 6. Manufacturing Compliance
- ISO 286-2:2010 (GEOMETRICAL PRODUCT SPECIFICATIONS - LIMITS AND FITS)
- ANSI/ASME B4.1-1967 (R2019) (PREFERRED LIMITS AND FITS FOR CYLINDRICAL PARTS)
- DIN 7184-1:2018 (HOUSINGS - PART 1: GENERAL REQUIREMENTS AND DESIGN)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Center Housing](https://cnfx.com/industry/motor-vehicle-manufacturing/product/center-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**: CENTER_HOUSING | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 0dab1ee5
