---
title: "Clutch or Coupling"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CLUTCH_OR_COUPLING"
  data_integrity_hash: "2c58f6ebd1ce01ddfc5371cb4bada164"
  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:CLUTCH_OR_COUPLING"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/clutch-or-coupling.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/clutch-or-coupling"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-15 N·m torque transmission, 0-6000 rpm rotational speed, -40°C to 120°C ambient temperature"
    unit: "Nm"
engineering_limits:
  max_safe_operating_point:
    value: 350
    unit: "MPa"
    consequence: "Thermal degradation of friction material due to exceeding Arrhenius reaction rate at 180°C, yielding of steel components at 350 MPa shear stress according to von Mises criterion, Hertzian contact stress concentration at misalignment interfaces"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Insufficient lubrication film thickness below 5 μm boundary layer"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Forced lubrication system with 0.1 μm filtration and minimum 10 bar pressure"
  - node_2:
      trigger: "Cyclic torsional loading exceeding 10⁶ cycles at 80% of yield strength"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Shot peening to induce 400 MPa compressive residual stress at surface"
bom_nodes:
  input-hub:
    type: "component"
    urn: "URN:CNFX:ME:INPUT_HUB"
    interface_type: "physical-logic-coupled"
  output-hub:
    type: "part"
    urn: "URN:CNFX:ME:OUTPUT_HUB"
    interface_type: "physical-logic-coupled"
  engagement-element:
    type: "component"
    urn: "URN:CNFX:ME:ENGAGEMENT_ELEMENT"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 10494:2018 - CLUTCHES AND BRAKES - VOCABULARY"
    scope: "Verified Engineering Specification"
  - standard: "DIN 740-2:1986 - FLEXIBLE SHAFT COUPLINGS; REQUIREMENTS, TESTING"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/clutch-or-coupling.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "0263ef624e65401c7f3cad0c94e966f7f90ba994af0bb67a2ca77e2072887b0f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Clutch or Coupling

## 1. Technical Definition
A mechanical device that connects or disconnects the transmission of power between two rotating shafts in a drill head or rotary drive system.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-15 N·m torque transmission, 0-6000 rpm rotational speed, -40°C to 120°C ambient temperature**. Failure boundary: **Shear stress exceeding 350 MPa in friction material, temperature surpassing 180°C at friction interface, axial misalignment exceeding 0.15 mm**, Mechanism: **Thermal degradation of friction material due to exceeding Arrhenius reaction rate at 180°C, yielding of steel components at 350 MPa shear stress according to von Mises criterion, Hertzian contact stress concentration at misalignment interfaces**.

### 2.1 Analytical Physics Model
Governed by the **L10 Bearing Life & Fatigue Model**:

> **Primary Equation**: $L_{10} = (\frac{C}{P})^p$  
> **Engineering Impact**: Predicts mechanical lifecycle before component fatigue.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| C | Dynamic Load Rating | Engineering Constant |
| P | Equivalent Dynamic Load | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Insufficient lubrication film thickness below 5 μm boundary layer | 8 | Adhesive wear and galling at friction surfaces | Forced lubrication system with 0.1 μm filtration and minimum 10 bar pressure |
| Cyclic torsional loading exceeding 10⁶ cycles at 80% of yield strength | 8 | Fatigue crack initiation at stress concentration features | Shot peening to induce 400 MPa compressive residual stress at surface |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Electric Motor**, **Variable Frequency Drive**, **Lubrication System**  
**Downstream Applications**: Drilling Rigs, Mining Equipment, Industrial Pumps  

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

### Q: What materials are used in this clutch/coupling and why?
**A**: This clutch/coupling uses alloy steel for strength and durability, cast iron for stability and heat resistance, and polymer/elastomer components for vibration damping and smooth engagement in demanding machinery applications.

### Q: How does this clutch/coupling connect to drill head systems?
**A**: The device connects via input and output hubs that interface with rotating shafts in drill head or rotary drive systems, using engagement elements to transmit torque while allowing controlled disconnection when needed.

### Q: What maintenance is required for industrial clutches/couplings?
**A**: Regular inspection for wear on engagement elements, lubrication of moving parts (if applicable), and checking hub alignment. Polymer components may need replacement over time due to wear in high-cycle applications.

## 6. Manufacturing Compliance
- ISO 10494:2018 - CLUTCHES AND BRAKES - VOCABULARY
- DIN 740-2:1986 - FLEXIBLE SHAFT COUPLINGS; REQUIREMENTS, TESTING

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Clutch or Coupling](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/clutch-or-coupling)**

### 🌐 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**: CLUTCH_OR_COUPLING | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 01314fbc
