---
title: "Paper Machine Reel Spool"
industry: "Paper Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PAPER_MACHINE_REEL_SPOOL"
  data_integrity_hash: "cc7a50a715e5569f7abe0f7c00da006e"
  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:PAPER_MACHINE_REEL_SPOOL"
  data_source_uri: "https://cnfx.com/llms/industry/paper-manufacturing/product/paper-machine-reel-spool.md"
  official_resource_url: "https://cnfx.com/industry/paper-manufacturing/product/paper-machine-reel-spool"
  is_verified_logic: true
attributes:
  max_tension:
    status: "config-dependent"
    typical_range: "1500-2500 NÂ·m torque, 50-120 RPM rotational speed, 0.5-2.0 mm radial runout tolerance"
    unit: "N/m"
  core_diameter:
    status: "config-dependent"
    typical_range: "1500-2500 NÂ·m torque, 50-120 RPM rotational speed, 0.5-2.0 mm radial runout tolerance"
    unit: "mm"
  max_line_speed:
    status: "config-dependent"
    typical_range: "1500-2500 NÂ·m torque, 50-120 RPM rotational speed, 0.5-2.0 mm radial runout tolerance"
    unit: "m/min"
  max_roll_diameter:
    status: "config-dependent"
    typical_range: "1500-2500 NÂ·m torque, 50-120 RPM rotational speed, 0.5-2.0 mm radial runout tolerance"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 3000
    unit: "NÂ"
    consequence: "Brinelling fatigue from Hertzian contact stress exceeding 1.5 GPa at roller bearing interfaces, torsional resonance at 2.5Ã— natural frequency causing shaft deflection beyond yield strength of 450 MPa"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Paper tension fluctuation exceeding 20% nominal value due to web guide misalignment"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install active tension control system with 10 ms response time and torque-limiting coupling with 3500 NÂ·m slip torque"
  - node_2:
      trigger: "Bearing lubrication starvation below 0.1 Î¼m oil film thickness"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement condition-based lubrication with real-time viscosity monitoring and automatic grease injection at 0.3 MPa pressure"
bom_nodes:
  main-spool-shaft:
    type: "component"
    urn: "URN:CNFX:ME:MAIN_SPOOL_SHAFT"
    interface_type: "physical-logic-coupled"
  journal-bearings:
    type: "component"
    urn: "URN:CNFX:ME:JOURNAL_BEARINGS"
    interface_type: "physical-logic-coupled"
  drive-coupling:
    type: "component"
    urn: "URN:CNFX:ME:DRIVE_COUPLING"
    interface_type: "physical-logic-coupled"
  core-chucking-system:
    type: "device"
    urn: "URN:CNFX:ME:CORE_CHUCKING_SYSTEM"
    interface_type: "physical-logic-coupled"
  shaft-cooling-system:
    type: "component"
    urn: "URN:CNFX:ME:SHAFT_COOLING_SYSTEM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/paper-manufacturing/product/paper-machine-reel-spool.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f11cbd7fb1b489937acdf315bca44bc077a8177a47fb8773a20959a7a7a8da11"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Paper Machine Reel Spool

## 1. Technical Definition
A rotating shaft that winds finished paper into large parent rolls.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **1500-2500 NÂ·m torque, 50-120 RPM rotational speed, 0.5-2.0 mm radial runout tolerance**. Failure boundary: **Exceeds 3000 NÂ·m torque, exceeds 150 RPM rotational speed, exceeds 3.0 mm radial runout, exceeds 80Â°C bearing temperature**, Mechanism: **Brinelling fatigue from Hertzian contact stress exceeding 1.5 GPa at roller bearing interfaces, torsional resonance at 2.5Ã— natural frequency causing shaft deflection beyond yield strength of 450 MPa**.

### 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 |
| :--- | :--- | :--- | :--- |
| Paper tension fluctuation exceeding 20% nominal value due to web guide misalignment | 8 | Torsional vibration amplification leading to shaft keyway shear failure | Install active tension control system with 10 ms response time and torque-limiting coupling with 3500 NÂ·m slip torque |
| Bearing lubrication starvation below 0.1 Î¼m oil film thickness | 8 | Adhesive wear generating metallic particulates exceeding 15 Î¼m size in lubricant | Implement condition-based lubrication with real-time viscosity monitoring and automatic grease injection at 0.3 MPa pressure |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| max_tension | Config-dependent | N/m | Verified |
| core_diameter | Config-dependent | mm | Verified |
| max_line_speed | Config-dependent | m/min | Verified |
| max_roll_diameter | Config-dependent | mm | Verified |

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Paper Machine Winder**, **Paper Machine Unwinder**, **Paper Roll Handling System**  
**Downstream Applications**: Newsprint Rolls, Kraft Paper Rolls, Coated Paper Rolls  

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

### Q: What materials are used in paper machine reel spools?
**A**: Our reel spools are constructed from premium alloy steel, carbon steel, or hardened steel, with anti-friction bearings for smooth operation and extended service life.

### Q: What components are included in the reel spool BOM?
**A**: The complete bill of materials includes: Core Chucking System, Drive Coupling, Journal Bearings, Main Spool Shaft, and Shaft Cooling System for optimal performance.

### Q: How does the shaft cooling system benefit paper manufacturing?
**A**: The integrated shaft cooling system prevents overheating during continuous operation, maintaining dimensional stability and preventing paper quality issues during high-speed winding.

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

---
### ðŸ› ï¸ Engineering Resource Access
ðŸ”— **[Full Specification: Paper Machine Reel Spool](https://cnfx.com/industry/paper-manufacturing/product/paper-machine-reel-spool)**

### ðŸŒ Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **5** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: PAPER_MACHINE_REEL_SPOOL | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c89b2750
