---
title: "Chuck Body"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CHUCK_BODY"
  data_integrity_hash: "73cb61e8a3310571547421a3892ad164"
  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:CHUCK_BODY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/chuck-body.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/chuck-body"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 MPa clamping pressure, -40°C to 120°C operating temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 250
    unit: "MPa"
    consequence: "High-cycle fatigue failure from cyclic bending stresses during jaw actuation, stress corrosion cracking in chloride environments above 60°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Misalignment exceeding 0.05 mm between mounting flange and spindle interface"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Precision ground locating surfaces with 0.005 mm flatness tolerance, dowel pin alignment system"
  - node_2:
      trigger: "Thermal expansion differential of 0.15 mm between steel body and aluminum jaws at 80°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Coefficient-matched materials with CTE &lt;12×10⁻⁶/°C, tapered jaw guides with 0.1 mm clearance at operating temperature"
bom_nodes:
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    interface_type: "physical-logic-coupled"
  jaw-guide-slots:
    type: "component"
    urn: "URN:CNFX:ME:JAW_GUIDE_SLOTS"
    interface_type: "physical-logic-coupled"
  actuation-mechanism-housing:
    type: "part"
    urn: "URN:CNFX:ME:ACTUATION_MECHANISM_HOUSING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 3089:2010 (MACHINE TOOLS - SELF-CENTRING CHUCKS FOR WORKPIECE CLAMPING - ACCEPTANCE TEST SPECIFICATIONS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI B5.8-1972 (CHUCKS AND CHUCK JAWS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/chuck-body.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "4dea59756ac23206eb90c4754c43ec6de44f130d1e3c1808b82cac0581209e4d"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Chuck Body

## 1. Technical Definition
The main structural housing of a chuck that provides mounting and alignment for jaws and other components.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 MPa clamping pressure, -40°C to 120°C operating temperature**. Failure boundary: **Material yield strength threshold at 250 MPa stress concentration at jaw slots, 0.5 mm permanent deformation at mounting flange**, Mechanism: **High-cycle fatigue failure from cyclic bending stresses during jaw actuation, stress corrosion cracking in chloride environments above 60°C**.

### 2.1 Analytical Physics Model
Governed by the **Thin-Wall Pressure Vessel Stress Analysis**:

> **Primary Equation**: $\sigma_h = \frac{P \cdot D}{2t}$  
> **Engineering Impact**: Determines the hoop stress boundary to prevent rupture.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| P | Internal Pressure | Engineering Constant |
| D | Diameter | Engineering Constant |
| t | Wall Thickness | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Misalignment exceeding 0.05 mm between mounting flange and spindle interface | 8 | Eccentric clamping causing workpiece runout &gt;0.01 mm TIR | Precision ground locating surfaces with 0.005 mm flatness tolerance, dowel pin alignment system |
| Thermal expansion differential of 0.15 mm between steel body and aluminum jaws at 80°C | 8 | Binding during jaw retraction requiring &gt;200 N·m actuation torque | Coefficient-matched materials with CTE &lt;12×10⁻⁶/°C, tapered jaw guides with 0.1 mm clearance at operating temperature |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Actuation Mechanism Housing](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/actuation-mechanism-housing.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Lathe**, **Coordinate Measuring Machine**, **Industrial Washer**  
**Downstream Applications**: Lathe Chucks, Milling Machine Chucks, Drilling Machine Chucks  

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

### Q: What materials are commonly used for chuck bodies in machinery manufacturing?
**A**: Chuck bodies are typically manufactured from durable materials like cast iron for heavy-duty applications, steel for strength and wear resistance, or aluminum alloy for lightweight operations where reduced inertia is beneficial.

### Q: What are the key components of a chuck body?
**A**: A standard chuck body includes the main structural housing, an actuation mechanism housing for operating the jaws, jaw guide slots for precise jaw movement, and a mounting flange for secure attachment to machine spindles or other equipment.

### Q: How does the chuck body ensure proper jaw alignment?
**A**: The chuck body provides precisely machined jaw guide slots that maintain consistent radial alignment of the jaws during operation, ensuring accurate workpiece centering and clamping force distribution for reliable machining performance.

## 6. Manufacturing Compliance
- ISO 3089:2010 (MACHINE TOOLS - SELF-CENTRING CHUCKS FOR WORKPIECE CLAMPING - ACCEPTANCE TEST SPECIFICATIONS)
- ANSI B5.8-1972 (CHUCKS AND CHUCK JAWS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Chuck Body](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/chuck-body)**

### 🌐 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**: CHUCK_BODY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: ad260fbd
