---
title: "Sprockets/Gears"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SPROCKETSGEARS"
  data_integrity_hash: "681dcf6c086b2ead75f6d68f888338fd"
  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:SPROCKETSGEARS"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sprocketsgears.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/sprocketsgears"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "Contact stress 800-1500 MPa, bending stress 200-400 MPa, surface temperature 40-120°C"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 1500
    unit: "MPa"
    consequence: "Hertzian contact stress exceeding material yield strength causes pitting fatigue; bending stress exceeding ultimate tensile strength causes tooth fracture; boundary lubrication failure at high PV values causes adhesive wear (scuffing)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Misalignment exceeding 0.05 mm/mm or angular error &gt;0.5°"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Precision ground shafts with 0.01 mm tolerance, crowned tooth profiles with 0.02 mm/module crowning"
  - node_2:
      trigger: "Insufficient lubrication film thickness &lt;0.1 μm at operating temperature"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Forced lubrication system with 0.3 MPa minimum pressure, EP additives maintaining λ ratio &gt;3"
bom_nodes:
  teeth:
    type: "component"
    urn: "URN:CNFX:ME:TEETH"
    interface_type: "physical-logic-coupled"
  hub:
    type: "part"
    urn: "URN:CNFX:ME:HUB"
    interface_type: "physical-logic-coupled"
  rim:
    type: "component"
    urn: "URN:CNFX:ME:RIM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 606:2015 (SHORT-PITCH TRANSMISSION PRECISION ROLLER CHAINS AND CHAIN WHEELS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B29.1-2011 (PRECISION POWER TRANSMISSION ROLLER CHAINS, ATTACHMENTS, AND SPROCKETS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sprocketsgears.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f6676f20287148c6a1d351dd19b0d6ae1c68b472c84a05a8a7f0dcaa73e6274c"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Sprockets/Gears

## 1. Technical Definition
Mechanical components that transmit motion and power through meshing teeth or engagement with chains.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Contact stress 800-1500 MPa, bending stress 200-400 MPa, surface temperature 40-120°C**. Failure boundary: **Contact stress exceeds 1500 MPa (pitting initiation), bending stress exceeds 400 MPa (tooth fracture), surface temperature exceeds 120°C (scuffing)**, Mechanism: **Hertzian contact stress exceeding material yield strength causes pitting fatigue; bending stress exceeding ultimate tensile strength causes tooth fracture; boundary lubrication failure at high PV values causes adhesive wear (scuffing)**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Misalignment exceeding 0.05 mm/mm or angular error &gt;0.5° | 8 | Edge loading causing localized contact stress concentration &gt;1800 MPa | Precision ground shafts with 0.01 mm tolerance, crowned tooth profiles with 0.02 mm/module crowning |
| Insufficient lubrication film thickness &lt;0.1 μm at operating temperature | 8 | Metal-to-metal contact causing adhesive wear and scuffing at PV &gt;1.75 MPa·m/s | Forced lubrication system with 0.3 MPa minimum pressure, EP additives maintaining λ ratio &gt;3 |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Gear Hobbing Machine**, **Gear Grinding Machine**, **Gear Inspection and Measurement System**  
**Downstream Applications**: Automotive Transmissions, Industrial Gearboxes, Agricultural Machinery Drivetrains  

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

### Q: What materials are best for sprockets in high-wear applications?
**A**: For high-wear applications, alloy steel sprockets offer superior durability and wear resistance compared to standard carbon steel, making them ideal for continuous operation in machinery manufacturing.

### Q: How do I choose between carbon steel and stainless steel gears?
**A**: Choose carbon steel for general-purpose applications requiring strength and cost-effectiveness. Opt for stainless steel gears when operating in corrosive environments or where hygiene is critical, though they may have slightly lower strength than alloy steels.

### Q: What are the key components in a sprocket's bill of materials (BOM)?
**A**: A standard sprocket BOM includes three main components: the hub (center mounting section), the rim (outer ring that holds teeth), and the teeth (engagement points that mesh with chains or other gears). Material selection and tooth profile specifications complete the BOM.

## 6. Manufacturing Compliance
- ISO 606:2015 (SHORT-PITCH TRANSMISSION PRECISION ROLLER CHAINS AND CHAIN WHEELS)
- ANSI/ASME B29.1-2011 (PRECISION POWER TRANSMISSION ROLLER CHAINS, ATTACHMENTS, AND SPROCKETS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Sprockets/Gears](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/sprocketsgears)**

### 🌐 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**: SPROCKETSGEARS | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: d85d7e33
