---
title: "Torque Limiter"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TORQUE_LIMITER"
  data_integrity_hash: "7267fd26d883104506cef2e547613692"
  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:TORQUE_LIMITER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/torque-limiter.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/torque-limiter"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "5-500 NÂ·m"
    unit: "Nm"
engineering_limits:
  max_safe_operating_point:
    value: 550
    unit: "NÂ"
    consequence: "Shear pin plastic deformation exceeding material yield strength under torsional overload"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Sudden load inertia spike exceeding 110% rated torque"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install overspeed detection sensor with 95 ms response time cutoff"
  - node_2:
      trigger: "Corrosive environment (pH &lt; 4.0) exposure for &gt;2000 hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Apply 25Î¼m electroless nickel plating with 0.15% phosphorus content"
bom_nodes:
  friction-discs:
    type: "component"
    urn: "URN:CNFX:ME:FRICTION_DISCS"
    interface_type: "physical-logic-coupled"
  spring-assembly:
    type: "part"
    urn: "URN:CNFX:ME:SPRING_ASSEMBLY"
    interface_type: "physical-logic-coupled"
  housing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 1940-1:2003 (BALANCE QUALITY REQUIREMENTS FOR ROTORS IN A CONSTANT RIGID STATE)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/AGMA 2000-A88 (GEAR CLASSIFICATION AND INSPECTION HANDBOOK)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 743-1:2012 (CALCULATION OF LOAD CAPACITY OF SHAFTS AND AXLES)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/torque-limiter.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "a55846b9ec35e635ad5b5af8b758e063aceb51e720dfceae253ec98dcfd81762"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Torque Limiter

## 1. Technical Definition
A safety device that prevents mechanical overload by limiting the maximum torque transmitted through a drive system.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **5-500 NÂ·m**. Failure boundary: **550 NÂ·m shear pin yield point (AISI 1045 steel, Ïƒ_y = 530 MPa)**, Mechanism: **Shear pin plastic deformation exceeding material yield strength under torsional overload**.

### 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 |
| :--- | :--- | :--- | :--- |
| Sudden load inertia spike exceeding 110% rated torque | 8 | Shear pin permanent deformation without disengagement | Install overspeed detection sensor with 95 ms response time cutoff |
| Corrosive environment (pH &lt; 4.0) exposure for &gt;2000 hours | 8 | Shear pin stress corrosion cracking at 65% of yield strength | Apply 25Î¼m electroless nickel plating with 0.15% phosphorus content |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Electric Motor**, **Variable Frequency Drive**, **Coupling Alignment Tool**  
**Downstream Applications**: Conveyor Systems, Packaging Machinery, Industrial Mixers  

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

### Q: How does a torque limiter protect machinery from damage?
**A**: A torque limiter prevents mechanical overload by disengaging or slipping when torque exceeds a preset limit, protecting drive systems, motors, and connected equipment from damage caused by jams, shocks, or overload conditions.

### Q: What maintenance is required for torque limiters with friction discs?
**A**: Regular inspection of friction discs for wear, checking spring tension, and ensuring proper lubrication of moving parts. Replace worn friction discs and recalibrate torque settings as specified by the manufacturer.

### Q: Can torque limiters be adjusted for different torque settings?
**A**: Yes, most torque limiters feature adjustable spring assemblies that allow precise calibration of torque limits to match specific machinery requirements and operational conditions.

## 6. Manufacturing Compliance
- ISO 1940-1:2003 (BALANCE QUALITY REQUIREMENTS FOR ROTORS IN A CONSTANT RIGID STATE)
- ANSI/AGMA 2000-A88 (GEAR CLASSIFICATION AND INSPECTION HANDBOOK)
- DIN 743-1:2012 (CALCULATION OF LOAD CAPACITY OF SHAFTS AND AXLES)

---
### ðŸ› ï¸ Engineering Resource Access
ðŸ”— **[Full Specification: Torque Limiter](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/torque-limiter)**

### 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**: TORQUE_LIMITER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: b0018c6d
