---
title: "Spool"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SPOOL"
  data_integrity_hash: "4b3271321cda47030612d72289d62bdb"
  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:SPOOL"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/spool.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/spool"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 N·m torque, 0-1000 rpm rotational speed, -20°C to 80°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 500
    unit: "N"
    consequence: "Hertzian contact stress exceeding 1.5 GPa at bearing interfaces leads to plastic deformation; torsional shear stress exceeding 200 MPa at shaft-spline interface causes fatigue crack initiation; abrasive wear coefficient exceeding 5×10⁻⁵ mm³/N·m at thread-guide interface"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Misalignment exceeding 0.1 mm/mm between spool shaft and drive mechanism"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate laser-aligned tapered roller bearings with 0.01 mm radial clearance and dynamic balancing to ISO G2.5 standard"
  - node_2:
      trigger: "Polymer thread material with coefficient of friction &gt;0.3 against spool surface"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Apply diamond-like carbon coating with 0.1 μm thickness to achieve surface friction coefficient of 0.15±0.02"
bom_nodes:
  core-cylinder:
    type: "component"
    urn: "URN:CNFX:ME:CORE_CYLINDER"
    interface_type: "physical-logic-coupled"
  flanges:
    type: "component"
    urn: "URN:CNFX:ME:FLANGES"
    interface_type: "physical-logic-coupled"
  bore:
    type: "component"
    urn: "URN:CNFX:ME:BORE"
    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/spool.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "e0bbbe3ed2100745993324f6f079d37778d732b70aa01294c4b6613c33142c12"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Spool

## 1. Technical Definition
A cylindrical component designed to hold and dispense thread, wire, or other flexible materials in manufacturing processes.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 N·m torque, 0-1000 rpm rotational speed, -20°C to 80°C ambient temperature**. Failure boundary: **Axial load exceeds 500 N causing bearing race deformation, radial load exceeds 300 N causing shaft deflection &gt;0.5 mm, surface roughness exceeds Ra 1.6 μm causing thread abrasion**, Mechanism: **Hertzian contact stress exceeding 1.5 GPa at bearing interfaces leads to plastic deformation; torsional shear stress exceeding 200 MPa at shaft-spline interface causes fatigue crack initiation; abrasive wear coefficient exceeding 5×10⁻⁵ mm³/N·m at thread-guide interface**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Misalignment exceeding 0.1 mm/mm between spool shaft and drive mechanism | 8 | Eccentric rotation inducing vibration amplitude &gt;0.2 mm at 600 rpm | Integrate laser-aligned tapered roller bearings with 0.01 mm radial clearance and dynamic balancing to ISO G2.5 standard |
| Polymer thread material with coefficient of friction &gt;0.3 against spool surface | 8 | Static friction buildup causing tension spikes exceeding 50% of yield strength | Apply diamond-like carbon coating with 0.1 μm thickness to achieve surface friction coefficient of 0.15±0.02 |

## 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**: **Wire Spooling Machine**, **Thread Tension Control System**, **Material Feeding Conveyor**  
**Downstream Applications**: Electrical Cables, Textile Yarns, Welding Wires  

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

### Q: What materials are available for industrial spools?
**A**: Our spools are manufactured in durable plastic, lightweight aluminum, and robust steel to suit various industrial applications and environmental conditions.

### Q: What are the key components in a spool's bill of materials (BOM)?
**A**: The essential BOM components include the bore (central hole for mounting), core cylinder (main winding surface), and flanges (side walls that contain the material).

### Q: How do I choose the right spool for my manufacturing equipment?
**A**: Consider material compatibility (plastic for corrosion resistance, aluminum for weight-sensitive applications, steel for heavy-duty use), bore size for your machinery spindle, and flange diameter for material capacity.

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

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

### 🌐 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**: SPOOL | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 12976782
