---
title: "Sprocket Hub"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SPROCKET_HUB"
  data_integrity_hash: "96fe52bf092d4acd349a3585b47c66ff"
  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:SPROCKET_HUB"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sprocket-hub.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/sprocket-hub"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-1500 N·m torque transmission, 0-3000 rpm rotational speed, -40°C to 120°C temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 450
    unit: "MPa"
    consequence: "High-cycle fatigue from alternating bending stresses during power transmission, fretting corrosion at shaft interface due to micromotion under cyclic loading, plastic deformation from torque overload exceeding material yield point"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Misalignment exceeding 0.1° angular deviation between shaft and sprocket axis"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Precision ground taper lock bushings with 0.005 mm concentricity tolerance and laser alignment verification during installation"
  - node_2:
      trigger: "Insufficient interference fit pressure below 50 MPa at shaft-hub interface"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hydraulic press fitting with 0.05-0.08 mm diametral interference and post-installation ultrasonic verification of interface pressure"
bom_nodes:
  hub-body:
    type: "component"
    urn: "URN:CNFX:ME:HUB_BODY"
    interface_type: "physical-logic-coupled"
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    interface_type: "physical-logic-coupled"
  keyway:
    type: "component"
    urn: "URN:CNFX:ME:KEYWAY"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 606:2015 (PRECISION ROLLER CHAINS, ATTACHMENTS AND SPROCKETS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sprocket-hub.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "2b78074fd4d6d19ada9ead45e59dafb0c0b411fcfd5b979b1b3dcb07d4875126"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Sprocket Hub

## 1. Technical Definition
The central mounting component of a drive sprocket that connects to a shaft or axle.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-1500 N·m torque transmission, 0-3000 rpm rotational speed, -40°C to 120°C temperature**. Failure boundary: **Yield strength exceeded at 450 MPa von Mises stress, fatigue failure at 10^7 cycles with 200 MPa alternating stress, critical interference fit loss at 0.02 mm radial clearance**, Mechanism: **High-cycle fatigue from alternating bending stresses during power transmission, fretting corrosion at shaft interface due to micromotion under cyclic loading, plastic deformation from torque overload exceeding material yield point**.

### 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 |
| :--- | :--- | :--- | :--- |
| Misalignment exceeding 0.1° angular deviation between shaft and sprocket axis | 8 | Accelerated bearing wear leading to hub wobble and vibration amplification | Precision ground taper lock bushings with 0.005 mm concentricity tolerance and laser alignment verification during installation |
| Insufficient interference fit pressure below 50 MPa at shaft-hub interface | 8 | Relative rotation between hub and shaft causing keyway wallowing and torque transmission loss | Hydraulic press fitting with 0.05-0.08 mm diametral interference and post-installation ultrasonic verification of interface pressure |

## 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 Lathe**, **Heat Treatment Furnace**, **Coordinate Measuring Machine**  
**Downstream Applications**: Conveyor Systems, Agricultural Machinery, Industrial Robots  

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

### Q: What materials are available for the sprocket hub?
**A**: Our sprocket hubs are manufactured from high-strength carbon steel or alloy steel, offering durability and resistance to wear in demanding industrial applications.

### Q: How does the sprocket hub connect to a shaft?
**A**: The sprocket hub connects via a keyway that aligns with a shaft key, ensuring a secure, non-slip fit, and includes a mounting flange for additional stability.

### Q: What are the main components of the sprocket hub?
**A**: The sprocket hub consists of three key parts: the hub body for structural support, a precision-cut keyway for shaft alignment, and a mounting flange for secure attachment.

## 6. Manufacturing Compliance
- ISO 606:2015 (PRECISION ROLLER CHAINS, ATTACHMENTS AND SPROCKETS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Sprocket Hub](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/sprocket-hub)**

### 🌐 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**: SPROCKET_HUB | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 07e6d9ad
