---
title: "Drive Coupling"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DRIVE_COUPLING"
  data_integrity_hash: "e685e81210414fcb85d893f8047fc577"
  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:DRIVE_COUPLING"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drive-coupling.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/drive-coupling"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 NÂ·m torque transmission, Â±0.5Â° angular misalignment tolerance, 0-6000 RPM rotational speed"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 180
    unit: "NÂ"
    consequence: "Fatigue failure from cyclic bending stress due to misalignment-induced alternating loads, torsional shear stress exceeding yield strength of 4140 steel (415 MPa), resonance at critical speed of 6500 RPM causing amplitude amplification"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Shaft misalignment exceeding 0.8Â° during assembly"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Laser alignment verification during installation with 0.1Â° tolerance, flexible element design with 10â· cycle fatigue life at 0.5Â° misalignment"
  - node_2:
      trigger: "Torque overload spike to 200 NÂ·m during polishing wheel jam"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Torque limiter with 160 NÂ·m slip clutch, keyway design with 1.5 safety factor against 415 MPa shear yield strength"
bom_nodes:
  hub:
    type: "component"
    urn: "URN:CNFX:ME:HUB"
    interface_type: "physical-logic-coupled"
  flexible-element:
    type: "component"
    urn: "URN:CNFX:ME:FLEXIBLE_ELEMENT"
    interface_type: "physical-logic-coupled"
  fasteners:
    type: "component"
    urn: "URN:CNFX:ME:FASTENERS"
    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/drive-coupling.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d9ab14f8c6ce3ee7021d7edf1142e08820df067e524108917ad978f7648cc67f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Drive Coupling

## 1. Technical Definition
A mechanical component that connects two rotating shafts to transmit torque while accommodating misalignment in the polishing spindle assembly.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 NÂ·m torque transmission, Â±0.5Â° angular misalignment tolerance, 0-6000 RPM rotational speed**. Failure boundary: **Torque exceeding 180 NÂ·m causes permanent deformation, angular misalignment beyond 1.2Â° induces cyclic bending stress exceeding 250 MPa, rotational speed above 7200 RPM creates centrifugal forces exceeding 15 kN**, Mechanism: **Fatigue failure from cyclic bending stress due to misalignment-induced alternating loads, torsional shear stress exceeding yield strength of 4140 steel (415 MPa), resonance at critical speed of 6500 RPM causing amplitude amplification**.

### 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 |
| :--- | :--- | :--- | :--- |
| Shaft misalignment exceeding 0.8Â° during assembly | 8 | Cyclic bending fatigue at coupling flexing elements | Laser alignment verification during installation with 0.1Â° tolerance, flexible element design with 10â· cycle fatigue life at 0.5Â° misalignment |
| Torque overload spike to 200 NÂ·m during polishing wheel jam | 8 | Shear failure at coupling keyway interface | Torque limiter with 160 NÂ·m slip clutch, keyway design with 1.5 safety factor against 415 MPa shear yield strength |

## 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**: **Polishing Spindle Assembly**, **Torque Monitoring System**, **Shaft Alignment Fixture**  
**Downstream Applications**: Polished Metal Components, Precision Engine Parts, Optical Lens Assemblies  

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

### Q: What materials are used in this drive coupling?
**A**: This drive coupling is constructed from steel for strength, aluminum alloy for lightweight durability, and elastomer (such as polyurethane) for flexibility to accommodate misalignment.

### Q: How does this coupling accommodate shaft misalignment?
**A**: The coupling uses a flexible elastomer element between hubs to absorb angular, parallel, and axial misalignment while maintaining efficient torque transmission in polishing spindle assemblies.

### Q: What are the main components in the BOM for this drive coupling?
**A**: The bill of materials includes fasteners for secure assembly, a flexible elastomer element for misalignment compensation, and precision hubs that connect to the rotating shafts.

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

---
### ðŸ› ï¸ Engineering Resource Access
ðŸ”— **[Full Specification: Drive Coupling](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/drive-coupling)**

### ðŸŒ 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**: DRIVE_COUPLING | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 7a987ba0
