---
title: "Drive Pulley"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DRIVE_PULLEY"
  data_integrity_hash: "b7d8ed3b6f56887a7aa053760cbf8c6c"
  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:DRIVE_PULLEY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drive-pulley.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/drive-pulley"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 m/s belt speed, 50-5000 N·m torque, 100-3000 rpm rotational speed"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 2.5
    unit: "MPa"
    consequence: "Hertzian contact stress exceeding material yield strength causes surface pitting; centrifugal force exceeding shaft yield strength causes catastrophic failure; differential thermal expansion between steel pulley (α=11×10⁻⁶/°C) and rubber belt (α=80×10⁻⁶/°C) causes interface separation"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Misalignment exceeding 0.5 mm/m between pulley and belt centerlines"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Laser alignment system with 0.1 mm precision and self-aligning spherical roller bearings"
  - node_2:
      trigger: "Cyclic bending stress from belt tension fluctuations exceeding material endurance limit of 400 MPa"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Shaft design with fillet radius ≥3 mm and surface hardening to 55 HRC minimum"
bom_nodes:
  pulley-shell:
    type: "component"
    urn: "URN:CNFX:ME:PULLEY_SHELL"
    interface_type: "physical-logic-coupled"
  end-discs:
    type: "component"
    urn: "URN:CNFX:ME:END_DISCS"
    interface_type: "physical-logic-coupled"
  shaft:
    type: "component"
    urn: "URN:CNFX:ME:SHAFT"
    interface_type: "physical-logic-coupled"
  lagging:
    type: "component"
    urn: "URN:CNFX:ME:LAGGING"
    interface_type: "physical-logic-coupled"
  bearings:
    type: "part"
    urn: "URN:CNFX:ME:BEARINGS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 4183:1995 - BELT DRIVES - CLASSICAL AND NARROW V-BELTS - GROOVED PULLEYS (SYSTEM BASED ON DATUM WIDTH)"
    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/drive-pulley.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f0c268d1e10112cb9276d44cf952c3fc71dccb5017710da6eb18168babf1e33e"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Drive Pulley

## 1. Technical Definition
A rotating cylindrical component that provides the primary driving force to move a conveyor belt.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 m/s belt speed, 50-5000 N·m torque, 100-3000 rpm rotational speed**. Failure boundary: **Surface contact pressure exceeding 2.5 MPa causes belt slippage; radial deflection exceeding 0.15% of diameter causes imbalance; surface temperature exceeding 120°C causes thermal expansion mismatch**, Mechanism: **Hertzian contact stress exceeding material yield strength causes surface pitting; centrifugal force exceeding shaft yield strength causes catastrophic failure; differential thermal expansion between steel pulley (α=11×10⁻⁶/°C) and rubber belt (α=80×10⁻⁶/°C) causes interface separation**.

### 2.1 Analytical Physics Model
Governed by the **Tractive Power & Resistance Model**:

> **Primary Equation**: $P = \frac{F \cdot v}{\eta}$  
> **Engineering Impact**: Ensures motor torque capacity exceeds operational inertia.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| F | Total Tractive Resistance | Engineering Constant |
| v | Belt Speed | Engineering Constant |
| \eta | Efficiency | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Misalignment exceeding 0.5 mm/m between pulley and belt centerlines | 8 | Edge loading causing asymmetric wear pattern and belt tracking failure | Laser alignment system with 0.1 mm precision and self-aligning spherical roller bearings |
| Cyclic bending stress from belt tension fluctuations exceeding material endurance limit of 400 MPa | 8 | Fatigue crack initiation at keyway corners propagating to shaft fracture | Shaft design with fillet radius ≥3 mm and surface hardening to 55 HRC minimum |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Conveyor Belt**, **Electric Motor**, **Variable Frequency Drive**  
**Downstream Applications**: Bulk Material Handling Systems, Packaging Lines, Assembly Line Transport Systems  

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

### Q: What materials are best for drive pulleys in harsh environments?
**A**: Stainless steel drive pulleys offer superior corrosion resistance for wet or chemical environments, while rubber lagging provides excellent grip and reduces belt slippage in demanding conditions.

### Q: How does proper drive pulley maintenance extend conveyor system life?
**A**: Regular inspection of bearings, shaft alignment, and lagging wear prevents uneven belt tracking, reduces motor strain, and minimizes downtime in machinery manufacturing operations.

### Q: What factors determine the correct drive pulley size for my conveyor?
**A**: Pulley diameter depends on belt tension, speed requirements, and horsepower. Larger diameters reduce belt stress, while proper shell thickness and end disc design ensure structural integrity under load.

## 6. Manufacturing Compliance
- ISO 4183:1995 - BELT DRIVES - CLASSICAL AND NARROW V-BELTS - GROOVED PULLEYS (SYSTEM BASED ON DATUM WIDTH)
- ANSI/ASME B29.1-2011 - PRECISION POWER TRANSMISSION ROLLER CHAINS, ATTACHMENTS, AND SPROCKETS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Drive Pulley](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/drive-pulley)**

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

> **Reference ID**: DRIVE_PULLEY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: fcd99097
