---
title: "Servo Actuator (Linear/Rotary)"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SERVO_ACTUATOR_LINEARROTARY"
  data_integrity_hash: "5f260f741bf1267ed2125068f04efcd9"
  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:SERVO_ACTUATOR_LINEARROTARY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/servo-actuator-linearrotary.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/servo-actuator-linearrotary"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.01-1000 Nm torque, 0.001-2 m/s linear velocity, 0.1-1000 μm positioning accuracy"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 60
    unit: "seconds"
    consequence: "Permanent magnet demagnetization at Curie temperature (80-200°C depending on NdFeB/SmCo composition), ball screw plastic deformation at Hertzian contact stress &gt;3.5 GPa, resolver/encoder photodiode saturation at &gt;100,000 lux"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Back-EMF voltage spike exceeding 150% rated voltage during rapid deceleration"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dynamic braking resistor network with 10 ms response time, IGBT gate driver with desaturation detection"
  - node_2:
      trigger: "Lubricant starvation in ball screw assembly due to &lt;0.1 μm filtration failure"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Closed-loop lubrication system with 5 μm absolute filtration, Hall-effect viscosity monitoring at 1 Hz sampling"
bom_nodes:
  servo-motor:
    type: "part"
    urn: "URN:CNFX:ME:SERVO_MOTOR"
    interface_type: "physical-logic-coupled"
  transmission-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:TRANSMISSION_MECHANISM"
    interface_type: "physical-logic-coupled"
  feedback-encoder:
    type: "part"
    urn: "URN:CNFX:ME:FEEDBACK_ENCODER"
    interface_type: "physical-logic-coupled"
  housing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 15552:2016 (PNEUMATIC FLUID POWER - STANDARD CYLINDERS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B5.54-2005 (SPECIFICATION FOR MACHINE TOOL SPINDLES)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 5480-1:2006 (SPLINED CONNECTIONS WITH INVOLUTE SPLINES BASED ON REFERENCE DIAMETERS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/servo-actuator-linearrotary.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "5f62ad402bb63a51865750bff9c0b8a2fc0048d35b8e90d4c58d3b1b023e4652"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Servo Actuator (Linear/Rotary)

## 1. Technical Definition
A precision electromechanical device that converts control signals into precise linear or rotary motion for positioning and force control in automated systems.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.01-1000 Nm torque, 0.001-2 m/s linear velocity, 0.1-1000 μm positioning accuracy**. Failure boundary: **Continuous torque exceeding 120% rated torque for &gt;60 seconds, winding temperature &gt;155°C, encoder signal loss &gt;10 ms**, Mechanism: **Permanent magnet demagnetization at Curie temperature (80-200°C depending on NdFeB/SmCo composition), ball screw plastic deformation at Hertzian contact stress &gt;3.5 GPa, resolver/encoder photodiode saturation at &gt;100,000 lux**.

### 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 |
| :--- | :--- | :--- | :--- |
| Back-EMF voltage spike exceeding 150% rated voltage during rapid deceleration | 8 | Insulation breakdown in stator windings causing phase-to-phase short circuit | Dynamic braking resistor network with 10 ms response time, IGBT gate driver with desaturation detection |
| Lubricant starvation in ball screw assembly due to &lt;0.1 μm filtration failure | 8 | Metal-to-metal contact causing Brinell indentation &gt;10 μm depth on recirculating balls | Closed-loop lubrication system with 5 μm absolute filtration, Hall-effect viscosity monitoring at 1 Hz sampling |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Servo motor](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/servo-motor.md) `(Standalone System)`
- [Transmission mechanism](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/transmission-mechanism.md) `(Standalone System)`
- [Feedback encoder](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/feedback-encoder.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Motion Controller**, **Power Supply Unit**  
**Downstream Applications**: Robotic Assembly Arms, CNC Machine Tools, Packaging Machinery  

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

### Q: What is the difference between linear and rotary servo actuators?
**A**: Linear servo actuators produce straight-line motion for pushing/pulling applications, while rotary servo actuators provide rotational motion for turning or positioning tasks. Both use servo motors with feedback control for precision.

### Q: What maintenance is required for servo actuators in industrial environments?
**A**: Regular inspection of seals and bearings, lubrication of transmission components, and monitoring of encoder feedback signals. Aluminum housing resists corrosion, while polymer seals protect against contaminants in manufacturing settings.

### Q: How do I select the right servo actuator for my machinery application?
**A**: Consider required force/torque, speed, precision needs, environmental conditions (IP rating), and feedback requirements. Our actuators with steel ball screws and neodymium magnets offer high efficiency for demanding manufacturing equipment.

## 6. Manufacturing Compliance
- ISO 15552:2016 (PNEUMATIC FLUID POWER - STANDARD CYLINDERS)
- ANSI/ASME B5.54-2005 (SPECIFICATION FOR MACHINE TOOL SPINDLES)
- DIN 5480-1:2006 (SPLINED CONNECTIONS WITH INVOLUTE SPLINES BASED ON REFERENCE DIAMETERS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Servo Actuator (Linear/Rotary)](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/servo-actuator-linearrotary)**

### 🌐 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**: SERVO_ACTUATOR_LINEARROTARY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 874aec06
