---
title: "Dancer Roller"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DANCER_ROLLER"
  data_integrity_hash: "e5fa6cfb81007ec2797b9a66c2503dea"
  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:DANCER_ROLLER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/dancer-roller.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/dancer-roller"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-5.0 N/mm tension, 0-100 mm displacement, -10°C to 80°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 7.5
    unit: "N"
    consequence: "Bearing seizure occurs when Hertzian contact pressure exceeds 2.5 GPa, causing plastic deformation. Mechanical interference follows Hooke's law (F=kx) where spring constant k=50 N/mm. Polymer degradation follows Arrhenius equation with activation energy 80 kJ/mol."
fmea_matrix_quantitative:
  - node_1:
      trigger: "Web tension fluctuation exceeding ±15% of setpoint for &gt;2 seconds"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement PID controller with 0.1 second sampling rate and 0.5 damping ratio"
  - node_2:
      trigger: "Accumulated particulate contamination &gt; 0.1 mm thickness on roller surface"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install air knife cleaning system with 3 bar pressure at 30° angle incidence"
bom_nodes:
  roller-barrel:
    type: "component"
    urn: "URN:CNFX:ME:ROLLER_BARREL"
    interface_type: "physical-logic-coupled"
  shaft:
    type: "component"
    urn: "URN:CNFX:ME:SHAFT"
    interface_type: "physical-logic-coupled"
  bearings:
    type: "part"
    urn: "URN:CNFX:ME:BEARINGS"
    interface_type: "physical-logic-coupled"
  mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
  position-sensor-mount:
    type: "component"
    urn: "URN:CNFX:ME:POSITION_SENSOR_MOUNT"
    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/dancer-roller.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "1554e8d2f28d68ff79452dee00c37d12305998593eb7cfaf43ed31e9feb1b604"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Dancer Roller

## 1. Technical Definition
A tension-sensing roller that moves vertically or horizontally to maintain consistent web tension in continuous processing systems.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-5.0 N/mm tension, 0-100 mm displacement, -10°C to 80°C ambient temperature**. Failure boundary: **Tension &gt; 7.5 N/mm causes bearing seizure, displacement &gt; 120 mm causes mechanical interference, temperature &gt; 100°C degrades polymer bearings**, Mechanism: **Bearing seizure occurs when Hertzian contact pressure exceeds 2.5 GPa, causing plastic deformation. Mechanical interference follows Hooke's law (F=kx) where spring constant k=50 N/mm. Polymer degradation follows Arrhenius equation with activation energy 80 kJ/mol.**.

### 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 |
| :--- | :--- | :--- | :--- |
| Web tension fluctuation exceeding ±15% of setpoint for &gt;2 seconds | 8 | Position control oscillation at 5-10 Hz frequency, causing web wrinkles | Implement PID controller with 0.1 second sampling rate and 0.5 damping ratio |
| Accumulated particulate contamination &gt; 0.1 mm thickness on roller surface | 8 | Increased friction coefficient from 0.15 to &gt;0.35, causing tension spikes | Install air knife cleaning system with 3 bar pressure at 30° angle incidence |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Web Tension Controller**, **Unwind/Re-wind Stand**, **Web Guiding System**  
**Downstream Applications**: Printed Packaging Materials, Coated Industrial Films, Laminated Composite Materials  

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

### Q: What materials are available for the Dancer Roller?
**A**: The Dancer Roller is available in carbon steel, stainless steel, aluminum alloy, polyurethane, and ceramic coating options to suit different industrial environments and applications.

### Q: How does the Dancer Roller maintain consistent web tension?
**A**: The Dancer Roller moves vertically or horizontally in response to tension variations, automatically adjusting position to maintain consistent web tension in continuous processing systems.

### Q: What components are included in the Dancer Roller BOM?
**A**: The bill of materials includes Roller Barrel, Shaft, Bearings, Mounting Brackets, and Position Sensor Mount for complete installation and operation.

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

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

### 🌐 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**: DANCER_ROLLER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 2a476425
