---
title: "Lumbar Support"
industry: "Furniture Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:LUMBAR_SUPPORT"
  data_integrity_hash: "8740ac9d1ef931c2d85818b72b13a87f"
  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:LUMBAR_SUPPORT"
  data_source_uri: "https://cnfx.com/llms/industry/furniture-manufacturing/product/lumbar-support.md"
  official_resource_url: "https://cnfx.com/industry/furniture-manufacturing/product/lumbar-support"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 NÂ·m torque, 0-25 mm displacement"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 180
    unit: "NÂ"
    consequence: "Yield strength exceedance of ASTM A36 steel (250 MPa) causing permanent deformation"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Cyclic loading at 5-10 Hz exceeding 1Ã—10â¶ cycles"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Shot peening surface treatment to induce compressive residual stresses of -400 MPa"
  - node_2:
      trigger: "Polyurethane foam compression set exceeding 15% at 70Â°C for 22 hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "High-resilience foam formulation with 95% compression recovery at ASTM D3574 Test D"
bom_nodes:
  support-pad:
    type: "component"
    urn: "URN:CNFX:ME:SUPPORT_PAD"
    interface_type: "physical-logic-coupled"
  adjustment-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:ADJUSTMENT_MECHANISM"
    interface_type: "physical-logic-coupled"
  mounting-bracket:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKET"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/furniture-manufacturing/product/lumbar-support.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "54f5f0b4e2e8ff9a25da5a95b5375d2f4097b2f050c6585db8eb2d0f2506fd58"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Lumbar Support

## 1. Technical Definition
Ergonomic component designed to support the natural curvature of the lower back

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 NÂ·m torque, 0-25 mm displacement**. Failure boundary: **Plastic deformation at 180 NÂ·m torque or 30 mm displacement**, Mechanism: **Yield strength exceedance of ASTM A36 steel (250 MPa) causing permanent deformation**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Cyclic loading at 5-10 Hz exceeding 1Ã—10â¶ cycles | 8 | Fatigue crack propagation in lumbar spring assembly | Shot peening surface treatment to induce compressive residual stresses of -400 MPa |
| Polyurethane foam compression set exceeding 15% at 70Â°C for 22 hours | 8 | Loss of elastic recovery and support contour degradation | High-resilience foam formulation with 95% compression recovery at ASTM D3574 Test D |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Foam Cutting Machine**, **Fabric Laminating Machine**, **Industrial Sewing Machine**  
**Downstream Applications**: Office Chairs, Automotive Seats, Medical Examination Chairs  

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

### Q: What materials are used in this lumbar support component?
**A**: Our lumbar support is constructed with high-density polyurethane foam for comfort, polypropylene plastic for durability, and steel reinforcement for structural integrity.

### Q: How does the adjustment mechanism work?
**A**: The adjustment mechanism allows users to customize the lumbar support height and depth to match their specific spinal curvature and seating preferences.

### Q: Can this lumbar support be integrated into existing furniture designs?
**A**: Yes, the mounting bracket system is designed for easy integration into various furniture frames, including office chairs, automotive seating, and residential furniture.

## 6. Manufacturing Compliance

---
### ðŸ› ï¸ Engineering Resource Access
ðŸ”— **[Full Specification: Lumbar Support](https://cnfx.com/industry/furniture-manufacturing/product/lumbar-support)**

### 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**: LUMBAR_SUPPORT | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 03ee191e
