---
title: "Ball Screw Shaft"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:BALL_SCREW_SHAFT"
  data_integrity_hash: "89be2c0fc10f7a19ce0f3820aa8a3ebb"
  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:BALL_SCREW_SHAFT"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/ball-screw-shaft.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/ball-screw-shaft"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "Axial load 0-50 kN, rotational speed 0-6000 rpm, temperature -20°C to 120°C"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 550
    unit: "MPa"
    consequence: "Plastic deformation from exceeding yield strength, surface pitting from Hertzian contact fatigue, resonance-induced vibration at critical speed"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Contaminant ingress (particles &gt;5 μm)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integral wiper seals with IP65 rating and positive pressure lubrication system"
  - node_2:
      trigger: "Misalignment exceeding 0.02 mm/m"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integral alignment features with 0.005 mm tolerance and preloaded angular contact bearings"
bom_nodes:
  threaded-section:
    type: "component"
    urn: "URN:CNFX:ME:THREADED_SECTION"
    interface_type: "physical-logic-coupled"
  shaft-body-journal:
    type: "component"
    urn: "URN:CNFX:ME:SHAFT_BODY_JOURNAL"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 3408-1:2006 (BALL SCREWS - PART 1: VOCABULARY AND DESIGNATION)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI B5.48-1977 (BALL SCREWS)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 69051-1:2001 (BALL SCREWS - PART 1: GENERAL CHARACTERISTICS, DESIGNATIONS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/ball-screw-shaft.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "040f99b562a679d394c54e278a8d041779aea8930fda8c48f791133ff7b111ab"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Ball Screw Shaft

## 1. Technical Definition
The precision-ground shaft that forms the core of a ball screw assembly, converting rotary motion into linear motion.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Axial load 0-50 kN, rotational speed 0-6000 rpm, temperature -20°C to 120°C**. Failure boundary: **Yield strength exceeded at 550 MPa stress, Hertzian contact pressure &gt;3.5 GPa, critical speed &gt;8000 rpm**, Mechanism: **Plastic deformation from exceeding yield strength, surface pitting from Hertzian contact fatigue, resonance-induced vibration at critical speed**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Contaminant ingress (particles &gt;5 μm) | 8 | Ball track scoring and increased friction coefficient &gt;0.005 | Integral wiper seals with IP65 rating and positive pressure lubrication system |
| Misalignment exceeding 0.02 mm/m | 8 | Preload loss and positioning error accumulation &gt;10 μm/300 mm | Integral alignment features with 0.005 mm tolerance and preloaded angular contact bearings |

## 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 Grinding Machine**, **Coordinate Measuring Machine**, **Industrial Washer**  
**Downstream Applications**: CNC Machine Tools, Industrial Robots, Aerospace Actuators  

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

### Q: What materials are ball screw shafts typically made from?
**A**: Ball screw shafts are commonly manufactured from alloy steels like SCM420 or SCM440 for high strength and durability, or stainless steel for corrosion resistance in harsh environments.

### Q: What are the main components of a ball screw shaft?
**A**: The two primary components are the threaded section where the ball nut travels, and the shaft body/journal that provides structural support and mounting surfaces for bearings and couplings.

### Q: How does a ball screw shaft convert motion?
**A**: The precision-ground threads on the shaft interface with a ball nut containing recirculating balls, converting the rotary motion of the shaft into precise linear motion of the nut along the shaft axis.

## 6. Manufacturing Compliance
- ISO 3408-1:2006 (BALL SCREWS - PART 1: VOCABULARY AND DESIGNATION)
- ANSI B5.48-1977 (BALL SCREWS)
- DIN 69051-1:2001 (BALL SCREWS - PART 1: GENERAL CHARACTERISTICS, DESIGNATIONS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Ball Screw Shaft](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/ball-screw-shaft)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **2** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: BALL_SCREW_SHAFT | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 4866d6ca
