---
title: "Pivot Connection Assembly"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PIVOT_CONNECTION_ASSEMBLY"
  data_integrity_hash: "70b63c27fac3514f58da791af7542c0e"
  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:PIVOT_CONNECTION_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/pivot-connection-assembly.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/pivot-connection-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-180 degrees rotation, 0-15 kN·m torque, -40°C to 120°C temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 450
    unit: "MPa"
    consequence: "Brinelling fatigue from cyclic Hertzian contact stress exceeding material yield strength (SAE 52100 steel: 1.5 GPa ultimate tensile strength), thermal expansion mismatch between steel (11.0×10⁻⁶/°C) and bronze (18.0×10⁻⁶/°C) components causing binding"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Insufficient lubrication film thickness (&lt;1 μm) at 120°C operating temperature"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Forced lubrication system with 0.2 MPa pressure and synthetic oil (ISO VG 68) with EP additives"
  - node_2:
      trigger: "Misalignment exceeding 0.05° during assembly"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Laser-aligned mounting fixtures with 0.01° tolerance and preload adjustment mechanism"
bom_nodes:
  pivot-pin:
    type: "component"
    urn: "URN:CNFX:ME:PIVOT_PIN"
    interface_type: "physical-logic-coupled"
  bearing-bushings:
    type: "component"
    urn: "URN:CNFX:ME:BEARING_BUSHINGS"
    interface_type: "physical-logic-coupled"
  retaining-plates:
    type: "component"
    urn: "URN:CNFX:ME:RETAINING_PLATES"
    interface_type: "physical-logic-coupled"
  fasteners:
    type: "component"
    urn: "URN:CNFX:ME:FASTENERS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 898-1:2013 MECHANICAL PROPERTIES OF FASTENERS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/pivot-connection-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "4441958ca3f8a67f421d4e330890b8404fb1141751c5df760895edf39fabcf63"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Pivot Connection Assembly

## 1. Technical Definition
A mechanical assembly that provides rotational connection between structural members, allowing controlled movement while maintaining structural integrity.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-180 degrees rotation, 0-15 kN·m torque, -40°C to 120°C temperature**. Failure boundary: **Shear stress exceeding 450 MPa in bearing race, radial play exceeding 0.15 mm, surface temperature exceeding 150°C**, Mechanism: **Brinelling fatigue from cyclic Hertzian contact stress exceeding material yield strength (SAE 52100 steel: 1.5 GPa ultimate tensile strength), thermal expansion mismatch between steel (11.0×10⁻⁶/°C) and bronze (18.0×10⁻⁶/°C) components causing binding**.

### 2.1 Analytical Physics Model
Governed by the **Frame Structural Deflection Analysis**:

> **Primary Equation**: $\delta = \frac{5 q L^4}{384 E I}$  
> **Engineering Impact**: Ensures structural stability for multi-stage machines.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| q | Uniform Load | Engineering Constant |
| E | Elastic Modulus | Engineering Constant |
| I | Moment of Inertia | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Insufficient lubrication film thickness (&lt;1 μm) at 120°C operating temperature | 8 | Adhesive wear and galling at bearing surfaces | Forced lubrication system with 0.2 MPa pressure and synthetic oil (ISO VG 68) with EP additives |
| Misalignment exceeding 0.05° during assembly | 8 | Edge loading and spalling in raceway contact zone | Laser-aligned mounting fixtures with 0.01° tolerance and preload adjustment mechanism |

## 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**: **CNC Machining Center**, **Coordinate Measuring Machine**, **Industrial Heat Treatment Furnace**  
**Downstream Applications**: Excavator Arm Assembly, Construction Crane Boom, Agricultural Equipment Linkage  

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

### Q: What materials are used in this pivot connection assembly?
**A**: This assembly is constructed from high-strength alloy steel components including bearing bushings, fasteners, pivot pins, and retaining plates for maximum durability in industrial applications.

### Q: How does this assembly maintain structural integrity during movement?
**A**: The precision-engineered design allows controlled rotational movement between structural members while distributing loads evenly through the bearing bushings and retaining plates, preventing deformation.

### Q: What types of machinery commonly use pivot connection assemblies?
**A**: These assemblies are essential in construction equipment, agricultural machinery, material handling systems, and industrial automation where controlled rotational movement between structural components is required.

## 6. Manufacturing Compliance
- ISO 898-1:2013 MECHANICAL PROPERTIES OF FASTENERS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Pivot Connection Assembly](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/pivot-connection-assembly)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: PIVOT_CONNECTION_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 502ed99d
